Learn about NFC and NFC battery

As we all know, Bluetooth and WIFI have brought us a lot of convenient for many years. We can send and receive files at a very high speed between two digital devices. However, most of you may have not heard of NFC yet. Here, we list some common questions for you all.

 

What is NFC?
NFC is short for near field communication and it is a new short-range wireless communication technology for digital device. Here, we mainly refer to smart phone.

Nowadays, NFC is being built into almost every new smart phone with the exception of the Apple iPhone. Especially for Samsung users, they may have noticed this new function. And we can find that most of the extended batteries w/ NFC function are serve for Samsung smart phones in the market.

 

NFC provides a simple, touch-based solution for mobile devices, consumer electronics, PC and intelligent control tools. Its identification and interconnection function allow those devices exchanging information in a short-range. The most amazing thing is that a normal communication can be happen between an NFC device and an unpowered NFC chip.

 

NFC is very small; it consists of two parts which include an integrated chip (soldered onto the logic board) and an NFC Antenna.

 

About the NFC Battery
NFC battery is not meaning that the NFC feature sits in the battery, but the antenna does. The true is that NFC circuitry itself is in the phone, but the antenna is in the battery. Ore more simply: A battery that equip with an NFC antenna will allow your handset to communicate with other devices and accessories equipped with NFC technology.

 

What can we get benefit from NFC technology?
First, this feature helps to exchanging information conveniently without the need of network just like the Bluetooth. Usually, Bluetooth function can identify and make a pair within 100m. For NFC, it can provide comparatively middling or low data transmission speed.

 

The disadvantages of NFC battery
What we have to face is that this NFC feature will drain your battery greatly. That's to say, your phone may not be able to last as long as you expected. However, we'd like to suggest you to disable this function if you don't want to use it which can help your battery last longer.

 

How to open the NFC setting in a mobile phone?
The setting is very easy to find. Just as every smart phone, all the system setting can be found in the "setting" option.

 

Application
NFC is widely used in commerce, Bluethooth and Wi-Fi connections, social networking, Identity and access tokens, smartphone automation and NFC tags. For more information, please learn from the Wikipedia.

 

NFC battery recommendation
Rechargeable 3900mAh Battery for Samsung Galaxy Note 3 III N9000 N9005

 

New 3900mAh rechargeable NFC Battery for Samsung Galaxy Note 3 SM-N9005/SM-N9000/SM-N9002

 

Source from http://blog.mbuynow.com/have-a-deep-look-at-nfc-and-nfc-battery/

AGM Gasoline Engine Coupon Share

Limited Special Discount 1: $5 off on purchasing AGM 30cc gasoline engine (Oct.31- Nov.05 EST)
Limited Special Discount 2: $5 off on purchasing AGM 60cc twin cylinder gasoline engine (Oct.31- Nov.05 EST)
Limited Special Discount 3: Buy AGM30cc + AGM 60cc together, $20 off automatically. (Oct.31- Nov.10 EST)

 

Agm-engine.com is an RC engine hobby online store focus on providing AGM gasoline engines and engine parts for all the US modelers. And its products are welcomed by most of the US players for its excellent quality and perfect customer service. The retail price of AGM 30cc gasoline engine is $179.99, but during the activity, you only need to pay for $176.99 once you have used the $5 coupon code. That's really chargeable, below is the coupon code of AGM 30cc gasoline engine, and the final price will appear after you have entered the coupon code:

 

Coupon code: AGM 30SALE

There are another coupon code for AGM gasoline engine which you can use to save some money, so if you are planning of purchasing an AGM 60cc twin cylinder gasoline engine, it is better for you to copy the below coupon code and make your order at agm-engine.com, but you should pay attention that this coupon code is only valid for few days. Once the activity goes to its end, it will do not work anymore, so you'd better use them to buy the AGM 60cc gasoline engine before its ending date.

 

Coupon code: AGM 60SALE

AGM gasoline engine bundle sale

AGM gasoline engines are famous for its strong power, long time lasting, and fuel oil efficiency and its great price. The AGM 30cc gasoline engine has its advantages of lightweight and high quality and its special designs, selling for only $179.99 on agm-engine.com; it can give you a wonderful flying experience once you install it on your model RC airplane.

AGM 60cc gasoline engine is the second gasoline engine comes from AGM Company, this gasoline engine drawn many attentions by its two opposed cylinders and two mufflers, and the Walbro carbs which are also proved that this gasoline engine is able to offer the user a smooth flight.

 

Buy AGM 30 + AGM 60 together, you do not need to enter any coupon code, system of agm-engine.com will deduce you $20 off automatically.

 

Agm-engine.com super coupon code subscribe

The most interesting thing for agm-engine.com is that they will always release some super coupon codes, and due to there are many holidays in the America, agm-engine.com will always publish some discounts and coupon codes for the subscribers, if you are fond of these wonderful AGM gasoline engines or engine accessories, you can subscribe the newsletter of this online store and enjoy the discounts then!

AGM offers Small Gasoline Engines Wholesale Worldwide

Good news for all AGM fans! Agm-engine.co.uk now offering the gasoline engines wholesale for all the RC hobbyists all over the world, all of you can buy the gasoline engines at wholesale prices from this RC engine hobby store. There are a few different ways for agm-engine.co.uk to offer wholesale prices for your shops.

First of all, agm-engine.co.uk has set a few discount codes for the customers to use. You can use these discount codes to deduct for some money off if you are wholesaling the gasoline engines from this hobby store. Please be attentions that some of the codes are especially available for wholesale, and most of them are limited within a certain period, you're required to use them during this time.

Second, the wholesale price is secret at agm-engine.co.uk. This RC engine hobby store offers model petrol engines and engine accessories with secret prices. You need to contact with the customer service if you want to wholesale the engines from there, and the price is changing which is depending on the amount you ordered.

Third, wholesalers will be divided into different customer categories. Agm-engine.co.uk will send you the points and coupons every now and then. If you have subscribed the newsletter of them, then you can get the latest promotion information and more discounts, which can be used to save some money for you.

Fourth, choose the nearest warehouse to dispatch your goods. Agm-engine.co.uk has set several warehouses to send the gasoline engines and engine accessories all over the world. But only the UK customers can enjoy the free shipping, so if you are a UK wholesaler and want to buy AGM gasoline engines from there, you'd better choose the UK warehouse to deliver the goods. Large amount of order can save much money on the shipping fee. However, for other wholesalers out of UK, you may have a look at the below picture.

So if you are planning to wholesale the AGM gasoline engines and engine accessories from this engine hobby store, you can click here to get the best engine and make money from selling them.

AGM 30cc Gasoline Engine Wholesale, Here's How to Get it

As some RC hobbyists expected, the first product of AGM 30cc was live for users purchasing them for retail and wholesale. AGM factory welcome all RC modelers join in their wholesale and dropshipping program and enjoy the lowest prices. It is easy to get start and the Company also provides several ways for users to join the program, just check it out…

How to Start an AGM Gas Engine Wholesale Distribution Business?

Wholesale is not strange today. One can decrease the shipping fee and get the lowest prices by buying bulk. Join in AGM wholesale program is a great way to share your RC hobby passion as well as increase your profits…

Welcome to Subscribe AGM Engine Free Newsletter

Newsletter is a great and popular way for merchants or website owners spread out their news. The subscribers don't need to visit the site every now and then while they can get the newest promotion, hottest news and more. On AGM Company website, subscribers are welcome to join and enjoy more discount than unsubscribers…

Wholesale Small Gasoline Engines vs. Retail

Most people think that the difference between wholesale and retail is only in the price while this is not true. Wholesalers not only can decrease their cost for buying the same small gasoline engines, but also shorten the stock time and can have a prior service….

Have a Look at our RC Engine Hobby Store - AGM-Engine.co.uk

At the end of July, AGM factory announced they launched a new site and direct sell their brand new products to customers. The first open warehouse and warranty facility located in Milwaukie Oregon, United States. After two months, AGM decide to open warehouses in UK and DE, and expand their business to worldwide…

Look Deep Into the AGM-60 Twin Cylinder Gas Engine

As RC airplane hobbyists, I think this is good news of September. Yup, the new China RC hobby factory AGM has just launched their second new product. According to the news from the company, the newest engine will be available in the market is a twin cylinder gas engine named AGM-60.

Most people know that the AGM-30 was the first engine sell at affordable price by the company. The AGM-30 released in July 2013, packed a single cylinder engine with 3.7hp/8500rpm output power. But do you know what's the next featured product will be launched by the company?

According to the CEO of AGM Engine, the AGM-60 twin cylinder gas engine is accept pre-order for several days. Users who have pre-ordered this item will really receive their parcel in the end of this month. It is said that, the newest 60cc gasoline engine will taking gas engine to another heights as it can generate and provides more steady power to RC model airplane.

Anyhow, let's have a glance of the specification of AGM-60 provided by AGM Engine.

Horsepower: 7HP/8500rpm
Idle speed: 1400rpm/min
Static Thrust: 15.2kg Pulling Force@100 meters altitude; 13.5kg Pulling Force@1800 meters altitude
Acceptable Props: 22×10; 23×8; 23×10; 24×8 2-blade
Displacement: 61cc
Bore and Stroke: 36mm×30mm (1.42 in×1.18 in)
Compression Ratio: 7.6:1
Weight Engine: 3.43 lb (1555 g)
Muffler: 2.82 oz / 3.00 oz (80 g / 85 g)
Ignition Module: 7.44 oz (211 g)
Fuel: 30:1
Ignition: 4.8 � 8.4v
Replacement Spark plug: CM6 style spark plug×2
Requires: Unleaded gasoline, oil, ignition battery & propellers

From the above information, we can see that the engine seems to be the perfect engine. While some skilled players maybe concerned about the compression ratio as it seems a little low. Generally, we suggest players choose the ratio between 8.0 and 12.0, those engines can serve enough and steady power without any pressure.

There are many factors we need to consider when choosing RC hobby engine for our model. Horsepower and static trust are the most concerned factors by most people I think. And I personally add that everything is imperfect. Though 7.6 seems a bit little low while it has a good economy advantage and practical usage. As a whole, the horsepower 7.0hp is good enough to enjoy your smooth and long time flying.

From the engine design, the twin opposed cylinder is very common in twin gas engines. The biggest advantage is it can balance the engine especially when it is running in idle state. In the same time, this design keeps the engine size stay small and has a nice looking.

Packed with two mufflers, two spark plugs and specified auto advancing electronic ignition system, the AGM Engine Company direct sell it to customers with USD $399. Comparing the 60cc twin gas engine for sale in the market, it is hard to find an engine selling under $400. According the CEO of AGM, they are striving to work hard to benefits users more.

Share what you think about the newest twin cylinder gas engine from AGM Engine Company.

Labor Day Deals: to Get the Best Engine Accessories at agmhobby.com

This August, agmhobby.com has made a series of promotions for collecting more customers to come to this online store, and to select the item what they want. These days, in order to celebrate the Labor Day's coming, agmhobby also held a big sale for its RC hobby products.

In order to gather as much as people to join in the activity, agmhobby.com has announced that each Facebook subscriber will have a choice to get a $5 coupon, which can be used to deduce for 5 dollars for the order exceeds 100 dollars. In order to get the coupon, the RCer need to "like" agmhobbyfans Facebook page and open a new account on AGM Hobby online store. They do not need to purchase anything; AGM Hobby will select the lucky person randomly.

However, in order to encourage the subscriber to share their products or make a comment on the items they've ordered, AGM Hobby also add a discount for the buyers. For all players who have uploaded a video of himself make, they will get the opportunity to receive another $5 coupon which can be used for order over 50 dollars. While the coupon code is one-time use, and each time only one coupon can be used for redeem purchase.

Rather than these coupons, most of RC hobby products are offering up to 30% off for the customers. Users can register an account at this online store and purchase what they like. What's more, agmhobby.com offer free shipping for all goods at Labor Day.

About agmhobby.com

Agmhobby.com is a new online RC hobby accessories store, while AGM is a manufacturer that focuses on the gas engine and engine parts, also a representative of China RC hobby factories. Agmhobby likes to do business with all RC hobbyists from all over the world. So they are not only a retailer store, but also can offer drop shipping and wholesale business.

Find more at http://www.agmhobby.com

Subscribe AGM Engine Newsletter will Save Your Time and Money

Why does AGM-Engine.com release a module to publish its newsletter? Yeah, as there are many of the online stores have set the module of the newsletter on their site; newsletter has become a platform for these old customers to gain the newest news about their products and promotions.

The newsletter is a good way for AGM-Engine.com/index.php?main_page=subscribe/index.php?main_page=subscribe/index.php?main_page=subscribe/index.php?main_page=subscribe to attract customers. Yes, this is a good way for AGM-Engine.com to collect its customers including drop shipping, wholesale and retail. While they will be only public the retail price in their newsletter and advertisements, drop shipping and wholesale price are all secret at this online store. AGM-Engine.com will release their new coming gasoline engine, engine accessories at their newsletter, so that to make sure all customers who have subscribed the newsletter from them to get the first hand news.

Holiday promotions and coupons are sent every now and then from this online store, using these coupons to buy gasoline engine or accessories from AGM-Engine.com can save you a lot of money, especially for the wholesale. You can enjoy a big discount from that, and what's more, expand your products line which can offer you more opportunities to make money if you are making a long-term drop shipping cooperation with AGM-Engine.com.

Subscribe a newsletter from AGM-Engine.com, that to say, you do not need to click into the site to say whether there are some activities or discounts. Just open your email box, AGM-Engine.com will send the latest information to you once there is something new. Which has saved you a lot of time on checking the details; you can use your time to do other useful things.

Except for the products and promotion information, AGM-Engine.com newsletter also offers some guides about how to run the RC model airplane. Helicopter, and tips on how to install the gasoline engine or some useful notes about flying. You can subscribe here http://www.agm-engine.com/index.php?main_page=subscribe

So if you are an RC modeler, or you are interested to make cooperation with AGM-Engine.com on own drop shipping, wholesale and affiliates program, just click on our link to register an account at our site and to subscribe our newsletter to obtain the best promotion and engine information.

mBuyNow.com Has Developed a Bike Light to Prevent Stealing

If the thief wants to store your bike, or unload some parts of your bike, then they cannot be doing that success. That's why?

mBuyNow.com has developed a new bike light which can ring the bells backward automatically. This bike light is developed by the employees who worked in mbuynow.com, and they have spent four months to research this item. This light is called "alarm light" which is a LED light with 3W brightness. It can be installed into the front or tail or the bicycle. There are buttons settle for you to choose put on, close up or sparking. You can press them according to your needs.

While there is also a set which stays under the cushion and this system is controlled by a remote controller. This set is just like the key of a car, you have to press the remote controller once you get far away from this bike. And also your bike should be locked then.

At that time, your bike has been looked there. One there is anyone goes near it. The alarm will release a loudly voice to remain the owner and the light will appear to spark like laser at that time. The thief will run away when they heard the voice and saw the light. What's more, this light will last to make noise for continuing 2 minutes.

With this alarming bike light, our bicycle hobbyists do not need to worry about the bike stolen any more. This smart LED bike light is made from aluminum material; it has set with the inner charge equipment for you to charge your bike at any time. There are also comes with a six foot shape micro-usb charge line and wall adapter, which is specially used for these people who like to put their bike near the wall socket, and the battery can be used for continuing 4-5 hours.

But this product is not come into the market yet; mbuynow.com said that they will do some changes to make this bike light more beautiful and suitable for many bike enthusiasts. And this bike light is expected to be on sale next year.

What about this Super Energetic RC Motorbike?

I've surfing the Internet and glanced at this motorbike last night. It looks so cool. This RC motorbike had used oil shock absorbers both in front and rear wheel, which was more stable than ordinary ones. The anodized aluminum chassis and metal chain driver make the bike strong and durable. And there are three colors of red, green and purple for you to choose.

So many people will ask that what about this motorbike? Whether it is worth buying?

Looking at the price and configure, this super energetic RC motorbike is worth buying. It was designed with exquisite workmanship and special appearance, using the electronic stabilizing system and four RPM of 8000RPM, 10000RPM, 11000 RPM and12000RPM available. You can use them to join in a competition, and which will give you a great experience.

This super energetic RC motorbike is sold for £268.00 at mBuyNow.com, with these high configure, this motorbike can be called as a cost-effective product, but is it worth buying? 

In order to make a survey about people on this item, we have made an investment on facebook.

Poll title: What do you think about this super energetic RC motorbike? Will you buy it?

Option: 1. High cost-effect, I will buy it

2. Price is higher and the configure do not worth this price

3. Price is too low; I worry about this quality and after sale.

Up to the poll ending, there were 203 people attended this poll, 40% people thought that this motorbike's configure do not worth the price and they won't buy it; 25% thought that the price is too low, and they did not believe in the quality of this product; while 35% thought it worth the price and they may consider to buy it from http://www.mbuynow.com/super-energetic-rc-motorbike-stable-performance-3200kv-60a-esc-p-671.html.

Supersonic Aircraft will Use Rocket Engine in the Future

It is said that the first supersonic aircraft of "Zehst" will come into use in 2050, and that will be the first supersonic airplane without any pollutions. While once this aircraft used in our live, we will only take half of two hours from Paris to Tokyo.

 

We've heard that this aircraft can bear passenger capacity of 50 to 100, and before the airplane fly, we should use the original biological fuel engine to promote it, and after it get to a certain height, we'll then change to use hydrogen and oxygen rocket engine to promote it, and its height will get to 32 kilometers that more over the height now.

 

When preparing to down land, this aircraft will turn off the engine, and then slipping slowly to the ground, it will restart the original engine when we get close to the earth surface.

The European Aircraft Company will cooperate with Japanese researchers to develop this new aircraft. Using existing technology to research and develop this supersonic aircraft, and they hope to be able to develop the prototype in 2020.

 

The developer said that: "We think that all aircrafts won't make any pollution just like Zehst. They can fly in the stratosphere all the time."

 

As we know, RC gasoline engine aircrafts will produce a lot of pollutions when flying in the sky. Pollutions caused by aircraft flying in the stratosphere are mainly from the burning of fuel exhaust, such as carbon dioxide, carbon monoxide, not burning hydrocarbons and particulate matter, nitrogen, etc. In addition, aircraft will also produce noise pollution. Condensation trail refers to the "white smoke" for the speed of flying. It is made by the water vapor in the air and exhaust fumes in the air condenses into ice crystals. Studies have found that condensation trail can form a roll cloud (a high-altitude cloud).This cloud will hinder the loss of heat radiation from the earth's surface, thereby contributing to global warming.

 

So the coming of the supersonic aircraft of "Zehst" will reduce the pollution produced by the airplane, and can also bring us a fresh environment. What's more, I also hope this model RC airplane of this mode will come soon.

 

Read also: American Retired Dentist turned to "Made" Model RC Engine Airplane

 

Google Maps Get Update for iPhone & iPad!

On July 17th, 2013, Google announces they have updated Google Maps for the iPhone and iPad. This updated also incorporates many new features from its newest Android system. It is said that the version is an improved interface for the larger iPad screen, and it has better driving directions, navigation options.

Read more at: http://geeks.broadwayworld.com/article/Google-Maps-Get-Update-for-iPhone-iPad-20130717

American Retired Dentist turned to "Made" Model RC Engine Airplane

Isn't it wonderful model RC engine airplane can make only by the professionals?

Not yet. An American dentist who has made all of us surprise, he do not have any professional training before, only being interested in the model airplane and with full enthusiasm to devoted himself into the building of an model airplane, finally he has made out a model airplane with full metal.

Wonderful model RC engine airplane

Lie in the Joe Martin fund technology museum Vestas, California, there are an aluminum P - 51 D mustang fighter models sparkling among these lists: the Aircraft landing gear can free up, controller is working properly, ammunition stand on both sides, and we can see clearly about the inner structure of this airplane through the lift of the model. This airplane is made by Young, c. Parker who has spent over 6000 hours on doing it.

Parker, a 77 - years - old dentist, comes from Honolulu. Hawaii. Although he worked as a dentist for a living, he has a deep loving in model. Parker said that he likes to play the airplane in his early childhood, and he has tried to make all kinds of model airplanes from 6 years old.

He will never forget that the first time he saw a battle airplane, and it was in his 20 years old. At that time, he was serving in the army on the Korean battlefield. When Ricardo Carvalho brought him to a scrap heap of World War II aircraft, his enthusiasm for fighter aircraft is started from then.

After that, Paker spent most of his spare time to make a different model airplane including RC engine airplane and Rubber Band ejection airplane. At the same time, he groped continuously innovation, and tried to use aluminum as the model material, finally he has success made a pure aluminum model plane.

Parker said even though he like model, he does not want to be a famous man by doing that, and the success of him was all happened in chance. He said there are only a few friends who have seen his model airplane. While someday, a boss from a model club asked him to show his model airplane in an exhibition. He did not want to take part in for the first time, but the boss has registered for him without agreement from him. 

However, at that time, no one has produced the pure metal model yet, so the model from Paker has won a great praise, and the model also was given the calling of "The best metal model" by Joe Martin Fund.

Study Finds Danger in Using Laser Pointers Too Much

Are you still using laser pointers with high power? I think most of you do not strange to laser pointers, it is a little pen release a red or green light once you click it. We always used it when we making a PPT report and we need it to point out the key points what we are talking about. Or we may also be able to print some lovely picture in the wall by using them.

Presentation laser pointers have make our life more convenient, but there is some bad thing happened with the coming of this cool gadget.

For example, in the preliminary contest of European championship2011, England's player Tony Parker was into a disturbance by the laser pointer. And early in 2008, Lyon fans irradiated Cristiano Ronaldo's face with a laser pen for many times, so that has triggered strong protests from Manchester team.

However, there are still some people who use the laser pointer to harm the fly of the plane in the night. In fact, the dangerous of laser pointers are stronger than you though. Because once if the laser pointers was exposure in the pilots who driving absorbed, consequences cans be imagined; And take-off and landing stage itself is a high incidence of accident at that time, if the pilot encounter interference by the powerful light, the situation will become more dangerous.

Besides, laser pointers can also hurt our eyes without a good use. Looking into the laser power of 5 mw and above will cause temporary vision damage to eyesight; the more powerful will cause permanent eye damage or even blindness.

What's more, high power laser may ignite flammable and cause a fire. Some high power laser pointer, diffuse light may also cause harm to the eyes, focusing more likely fire on the flammable items.

But not all of the laser light source will cause harm to our eyes, once we've taken the appropriate protective measures, as long as there is some protection in the process of operation behavior, then this type of damage is very small. Here we suggest all of our friends to use laser pointers in a reasonable way to avoid hurting from it.

mBuyNow Talks about the SkyRC GPS Speed Meter

SkyRC GPS speed meter is inspired by GPS devices, designed to quick positioning, record speed and altitude in real time for RC racing/flying and casual biking, driving, long journey or similar machine control indicate applications. 

The highly visible LED light display provides 9 items of information to the operator, time, current speed, peak speed, average speed, altitude, peak altitude, trip and latitude & longitude. This live time communication allows for more accurate passes. The GPS speed meter supports both metric and imperial system of measurements depend on your setting.

Features of SkyRC GPS speed meter

* GPS Coordinator

* 32 parallel satellite searching channels

* Compact and easy to carry

* UTC timestamp logged for each track point

* PC link for data logging & Google map

* Firmware upgradable

* 1 year warranty

* Simple to move from machine to machine

* Built-in 4M flash, recording time up to 6 hours

* Runs on 200mAh LiPo rechargeable battery, can work up to 150 minutes

mBuyNow Co.Ltd has been open their new online store for customers to have a happy shopping experience. To shorten the shipping time, they have opened three warehouses which include UK warehouse, DE warehouse and HK warehouse. 100% satisfaction, 30 days money back and 90 days free repair are promised by mBuyNow. 

Safety Use of Laser Pointers

Laser pointers are usually applied in presentation situations for lectures, business conferences etc. to point at topics of interests. They are visible beams with various power output and changeable colors. Teachers can use it for teaching assistant and demonstrate their lectures vividly. And along with the advance of technology, laser pointers become more and more common in life. While one point need to concern is the safety use of laser pointers especially to human eyes.

This is a temporary optical problem concerning laser pointers with human eyes. Normal problems are flash blindness, glare and afterimages. Flash blindness occurs whenever someone is exposed to a bright light source. While it only lasts for a few seconds, it can be extremely dangerous when someone is involved in a task which requires vision, such as driving. Afterimages can last for several days, and take the form of small spots in the vision. Glare, a reduction of visibility caused by bright light, occurs while the laser is directed at the eyes.

Fortunately, there is no permanent damage to human eyes once harmed by laser pointers. They may cause reduction of visibility and one should use them carefully and properly to avoid dangerous. Moreover, there will be profound optical damages once under long time exposure of laser beams. Nowadays, many laser pointers are tagged as low harm or less power output, but there are still strong power ones. When it is focused on the retina through the lens of the eye, it can cause damage. Continuously staring into a laser through a fully diluted eye for over one minute may cause a retinal burn.

Many regions had regulated the labeling of laser pointers to ensure safety of users. One can find that there is a “caution” label on laser pointers to show their dangerous class and the power output are also showed. Many laser pointers are IIIA devices, meaning that there is a potential for damage with direct exposure to the laser. Class two lasers are less powerful, and are a better choice if you are concerned about safety. Usually, laser power within 1mW is relatively safety. They are mostly used as star pointers or teaching laser pens or just used to play with pets.

Generally laser pointer will not harmful to human if used properly. You cannot take it as a funny toy or just pointed directly at others. Even when you use it outdoors, you cannot just point it at random. Please do keep it away from children otherwise it may be dangerous as kids have little idea about the harm of laser pointers.

Why You Need a Laser Pointer Pen?

A laser pointer is a small laser designed to highlight something of interest by projecting a small bright spot of colored light onto it. Laser pointer pens are the most commonly used form of laser light technology.

The small width of the beam and low power of typical laser pointers make the beam itself invisible in a reasonably clean atmosphere, showing a point of light when striking an opaque surface. As its convenient hand held size, laser pointer pen has become the ideal presentation tool perfect for educational and presentation use.

Laser pointer- let you speak out freely

This little gadget can use to point at things, the lower powered lasers such as 1mW – 5mW are still used for presentations, classes, and meetings. Higher powered lasers are also used by professionals such as engineers on building sites, surveyors and arborist. Because of this function, college students, teachers and business man use it for demonstrations and presentations in classes, and other activities, making listeners feel released.

Good star-pointer

When we were children, our father and mother always told us what’s the name of this start by finger. As the laser pointer appeared, we can now use its beautiful beam light to point out the very position of the star you are looking at. So it is a very good star-pointer.

Good guide

There is just something so compelling and fascinating about laser beams the makes laser shows such an attraction. Therefore, many laser enthusiasts use it in museums and all kinds of exhibitions. Just a reminder, some valuable exhibits are photophobia, so turn off your laser pointer to prevent it may cause damage. Also, this cool gadget is a great companion for travel.

SOS signal

Think about that, you go lost or suffered a predicament, how nice it will be if there is a laser pointer with you. It’s a good tool for pointing out the faraway target and sending out the SOS signal, which will make more fun and safety for your travel.

Fun

A laser pointer is not a toy, but you can use them to play with your child, also your pet. But just a reminder, do not allow children to use laser pointers unless under the supervision of an adult. It may hurt your children. Don’t forget please always buy a maximum output less than 5mW, the lower the better.

You may feel shocked that such a tiny gadget has so many applications. But that’s true and you can make full use of it as you wish. 

Rock Your Life with Super Stable AGM V5 Phone

AGM is the pioneer and supporter of testing standard for outdoor product. AGM OEPT worked out the outdoor environment protection standard for the outdoor communication products, which establish the standard rules for three-proofs mobile phones.

Strong, practical is the main features of AGM mobile phone. AGM will always provide a free communication experience to outdoor users with its solid structure and rich applications.
 
AGM ROCK V5 Android Phone Introduction
Along with the release and hot-sale of MOTO Defy, mobile phone of three-proofs had been widely used and entered into people's daily life. It was more and more popular for outdoor users with its waterproof, dustproof, shockproof and other strong practical functions.

The hot-selling MOTO Defy attracted many mobile phone manufacturers, and various kinds of three-proofs mobile phone emerged. Take Sonim, Getac as a representative, they are far more advanced in the market of this kind mobile phones, while their prices are also beyond catching. Thus phones like AGM with better price and little less performance become a satisfactory choice.

During such environment, AGM launched its most meaningful style AGM ROCK V5. This model used the latest German three-proofs patent and process design, the rugged and unconstrained outlook made it strong and durable, very suitable for outdoor use especially in bad environment. The unique and novel design give a new and comprehensive concept for the three-proofs mobile phone, which fully embodied the innovation spirit of mobile phones.

It was said that the style of phone had already took show on Electric Fair in German IFA, and catches many eyes who are interesting in outdoor sports.

The body uses high density double jet injection fuselage, the unique design make the seal level up to the highest waterproof & dustproof level IP67. That’s to say, it can be emerged in 1 m depth water safely for 30 minutes, anti-dust intrusion can be 99%. High strength of the structure processing make AGM Rock bears more shock and violence than normal mobile phone.

AGM V5 (Rock) 3G dual card dual standby uses a 800MHz CPU in high operation and create super clear calling voice S-Voice especially for outdoor users.

Knowledge of Lamp

I think many people may have little unpleasant experience in the wild night, just because he carries a lamp is not satisfactory, not convenient to use, the light intensity is not enough, the power consumption is too fast and too heavy or unstable quality… and so on. There are a variety of various types of lamps on the market. Now, let’s learn about what kind of lamp meets you need.

Incandescent

In order to look slightly farther in the night outdoor, it’s unthinkable without incandescent light. It is not an easy thing to make incandescent bulb bright and energy saving. Filled with inert gas in the case of certain power bulb can enhance the brightness. For life expectancy, it’s usually fill with krypton and xenon and it is also a special sacrifice life in exchange for high-brightness, high-power halogen bulb.

For the outdoor point, it needs to take into account the use of versatility, reliability and long-term. The common inert gas bulb is appropriate. Of course, using the high brightness halogen bulb lamp also has its own absolute advantage.

LED

Practical use of high-brightness light-emitting diodes brought revolution in the lighting. Low energy consumption and long life are its biggest advantages. Use several ordinary dry batteries enough to maintain a high-brightness LED dozens or even hundreds of hours of lighting. Now the biggest problem of LED is light condenser.

Divergent light source causing it is almost impossible to illuminate the ground outside the 10 meters at night. The luminescent color also makes the lighting sharp decline in the rain and fog outdoors. Therefore, many lamps use several or even dozens of LEDs to try to improve these problems. Unfortunately, the effect is not obvious.

Now, ordinary LED is still more suitable for camping or tent use as its advantage is near light source.

Lamp bowl

An important factor in determining the quality of lighting is a reflection of the light source - light bowl. The ordinary lamp bowl is silver-plated plastic or metal bowl. For the source of high-power incandescent, metal lamp bowl is more conducive to heat and the diameter of lamp bowl determines the theoretical range.

In a sense, not the smooth light bowl, the better. The best effect of light bowl is a circle wrinkles orange peel. It controls the diffraction of light spot caused by the dark grain effectively and makes the lighting area spot more centralized uniform.

Battery

Many cases you may complain about why the lamps out of charge, and blame to the lamp itself. In fact, the choice of battery is also crucial, in general, ordinary alkaline battery capacity and discharge current is ideal. Its price is low and it’s easy to buy. But it is not ideal for large current discharge. NiMH rechargeable batteries energy density ratio is much higher and its recycling is economy, but self-discharge rate is higher too. Lithium battery discharge current is very ideal and it’s suitable for high-power lamps. But now the price of lithium is still relatively expensive.

Design and manufacture the ideal lamps require rich electronic, materials, mechanical, optical knowledge. Understanding of these fundamentals will help you choose the quality of lamps.

How to Adjust Engine

We all know that it’s very important to run-good engine for the normal use and it may affect the life-span of engine. Here we will learn about the engine adjustment.

Oil
You need to use of not less than 20% castor oil fuel or not less than 15% synthetic lubricant fuel. Generally, it is prohibited to use methane fuel (unless you do not have vegetable oil) and run-in in the case of the oil-rich.

Run-paddle
Use bigger paddle than the normal use to running-commissioning.

Engine fixed
Please fastening the engine in a safe test cell or aircraft (fix body in the same time) correctly, you can ask a friend to help. Please don’t stand near the propeller rotation lines as it may dangerous. You can stand in front or behind to operation after you confirm the propeller is fixed tightly. Stand behind to adjust when the engine is power on.

Oil needle adjustment
Parameters of new engine is adjusted on the standard vaporizer, in this case, we need to prepare for using different standard oil. Please open the main oil needle circle and half circle of idle needle to run-in new machine.

Commissioning
Please use battery that voltage does not exceed 1.5V to the glow plug. Running 10-15 minutes
in the 1/3 opening case of vaporizer, 2/3 opening case for 20 minutes and all-opening case for 5 minutes. Extend time appropriately if there is piston ring.

Run-in 5-10 minutes after completion of the primary run with flight paddle until there is no black oil and metal particles in discharged oil. During the time, oil-poor is not allow, and you can adjust the oil-pin according to the actual situation. Last, start the engine with the starter or start stick, non direct hand.

How to adjust the engine's primary and secondary oil needle? What’s the sequence and method? To reach this, you need to learn about the definition of them.

Main oil needle, also known as high speed needle, it is used for the adjustment of the maximum engine speed. Vice needle, also known as the idle needle or low speed needle, it is used for the adjustment of engine idle. The adjust order of the first adjusted is the main oil needle, and then to idle oil needle adjustment

Please note that model engine is not ordinary toy, please pay attention to the safety of others and your. The child should complete in the assistance of parents. Please immediately rinse with water once the oil splashed into eyes.

Which One is Better--Diesel Engine or Gas Engine

When you choosing an engine for your model or other vehicle, the query which kind is better may bother you occasionally. Now we can make a contrast between diesel and gasoline engine. Of course they both have their own advantages and disadvantages, what we need to do are just find the one suitable for our practical use.

First of all, diesel engine is more efficient than gasoline engine as it gets better mileage on average. The internal structure and energy density determined that diesel engine has more power. That’s to say, you can run same mileage with less fuel by using diesel engine. What’s more, its starter is not so complicated as gasoline engine for there are no spark plugs. When under good maintenance, the life span of diesel engine can endure till it was damaged. Its requirement of oil is also extensive, even simply used vegetable oil with mixed oxide can fit it. No wonder diesel engines can be the most reliable & practical one among many other kinds of engines.

Secondly, the low ignition point of gasoline determines the compression ratio of gas engine cannot high, in order to avoid oil and gas combustion. So its thermal efficiency and economy quality are not so good as diesel engine.

While that does not mean gasoline engine is not good enough. Generally, for small models or flexible vehicles, gasoline engine is the first choice. It has small volume which convenient to move and suitable for light load occasions. When given more gear changes it will gain bigger power band. Thus the advantages of the gasoline engine are its small volume, light weight, cheaper price, and high speed under maximum power, low vibration and noise during work. So gasoline engine has been widely used for cabs especially cars. Most cars are using gasoline engine as power system.

Moreover, comparing to the bulky diesel engine, it consumes less fuel and more safe when working. Especially from the viewpoint of environmental protecting, gasoline engine remits less particular matters and is much quieter than diesel engines.

Therefore, the comparison between the two kinds of engines is quite complicated. There are many objective factors which affect the functions of diesel engine as well as gasoline engine. What vehicle you have or need to buy also matters.