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9 More Things You Don’t Know The Purpose Of

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• published: 08 Nov 2016
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In response to the requests from our previous videos, here are some pretty unique and interesting things you most likely don't know the purpose of. Here are 9 More things you don't know the purpose of. Subscribe for more! ► http://bit.ly/BeAmazedSubscribe ◄ Stay updated ► http://bit.ly/BeAmazedFacebook https://twitter.com/BeAmazedVideos https://instagram.com/BeAmazedVideos◄ For copyright queries or general inquiries please get in touch: beamazedvideos@gmail.com Credit: http://pastebin.com/H1AAAwAb Thick Black tubes across the road - These are pneumatic road tubes and are temporary instalments generally used to study traffic patterns and help make decisions for planning purposes about things like stop signs and traffic lights. The tubes can detect the types of vehicles using the road by measuring the weight that goes over the tubes and the distance between each wheel that rolls over it. Num Lock - Alright, this key has a simple purpose and a majority of you may know what it's for, but probably not know why it's there. When Num Lock is on, your keypad on the right of your keyboard will work like a normal phone dialler, with numbers 0-9 working as normal. The projected things on an aircraft wing - These are called flap track fairings. There are a number of different names for these pods that stick out, including anti-shock bodies or withcomb bodies. These are actually only the covers of the whole mechanism underneath that control the flaps at the back of the wing and they are shaped in this particular way for aerodynamic reasons. Wires extending off airplanes - These are called static dischargers and usually stick out of the trailing edges of aircraft, including the back of wings and tails of airplanes. What they do is prevent the build-up of electric charges around the radio antennas. If these wires weren't there the antennas of the radios would be the most pointy thing sticking out of the plane and since electrons have a tendency to build up where pointy things stick out, charge would build up around radio antennas. Rings on headphone jacks - Each of these are non-conductive insulating rings which basically insulate one section from the next in order to represent which what components get power. Typically, One ring means there are two sections, so the plug is mono and plays the same sound to both stereo headphones and regular stereo headphones will tend to have 2 rings, creating 3 sections, with two of them providing the connection to the left and right speakers. The 'fin' on the roof of cars - These are just cases hiding GPS antennas. Sometimes they're added for aesthetics, but the fin also somewhat helps with aerodynamics. 2 flush buttons - These are dual flush buttons and the toilet experts amongst you are probably just about to comment about how 'everyone should know this one'. But, it's worth explaining just so the few of you who don't know about it... now do, because its features like these that can make a real difference. This is how simple it is - the two buttons flush different amounts of water, so prevent wastage. Tic Tac lids - There's a reason for this tic-tac sort of bed on the inside of the lid. To add ease to retrieving a single mint. Saving you from recklessly shaking out your mints, this ingenious reliefed area allows you to reveal your mints in style by placing the box upside down and opening the lid as you tilt the rest of the box back down. The ball or disk above the rotor on helicopters - This is a Fire Control Radar and is seen on numerous attack helicopters such as the apache. Essentially, it is designed to provide information such as elevation and range to a fire-control system in order to calculate a fire solution. In other words, it detects information on how to direct weapons such that they hit a desired target.