#221 What is the difference between sonar and radar?
I learned this today. Radar works by using radio waves to work out the position of objects relative to the detector and sonar uses sound waves. Radar works in a…
#135 How does Bluetooth work?
I learned this today. Bluetooth is a short range, low power technology that can transmit data over radio waves. Bluetooth works on frequencies in the 2.400 to 2.483.5 GHz short-range…