Technology has advanced to a level that you can keep your family safe using your cell phone. And, if you happen to lose your cell phone, you can use the GPS to find it. The best part about it is that there’s no complicated, expensive procedure you have to follow the get the apps. Most … Read more
As the whole world watched with bated breath Sputnik 1 bursting out into space from Baikonur Cosmodrome, two physicists on the other side of the world at Johns Hopkins University’s Applied Physics Laboratory (APL) decided to monitor its radio transmissions. Soon, William Guier and George Weiffenbach realized that, because of the Doppler Effect, they could pinpoint where the satellite was … Read more