Radar ?


Joined Feb 24, 2006
I have 5 fingers in each hand. Which one is my googlefinger? By the way, the middle finger of my right hand is my macdonaldfinger, so I guess it is taken.:)
I use the index finger of my right hand to generate a mouseclick to get from the news page to the search page.


Joined Apr 20, 2004
Fingers aside, the message here is that there are many flavors of radar in existence. The principle is to receive a bit of RF energy that has been reflected from some object at a distance, and to get a measure of the distance by using the time delay between the emission of the RF and the receipt of the reflected energy.

Using Google to fnd articles on the subject will give you a greater depth of subject matter than we can provide here.