How does RADAR work James May QampA Head Squeeze

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=ywDE57CtaTM

How does RADAR work? It's a bit like shouting very loudly at a cliff and waiting for the echo to come back to you. Whether you use rude words or not is completely up to you. • RADAR is emitting a sound wave and waiting for the echo to come back to you. By timing the returning echo you can work out where exactly another object is. • The really interesting thing about radar is if you use multiple angled receivers you can work out the position and height of a target. This technology was essential in winning the Battle of Britain in 1940. • But that was 1940, what about radar now? Is it as defunct as the 3 ½ inch floppy disk? Well, no actually. Radar is still pretty important in the military but the technology is a lot more advanced. In fact each time you connect to a sat nav to figure out where you are, you are using the network of satellites that calculate your position using the same principles of radar. • Thanks to Alyssa Ann for her portrait of Jeremy Clarkson: http://alyssamenold.com/ • Why not have a look at James' vid on now sat navs work: • Satellite Navigation: HOW does it Wor... • Or Why not check out Greg Foot's vid on whether humans will ever be able to fly: • Will Humans ever be able to FLY? | Gr... • / headsqueezetv • http://www.youtube.com/subscription_c...

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