Now, we will learn about Velocity Time Graphs . Velocity-Time Graphs: To draw velocity time graphs, we will use the three equations of motion. Case 1: Velocity-time graphs with constant velocity (zero acceleration) When the velocity is constant, the velocity time graph, with Y-axis denoting velocity and X-axis denoting time, will be like: As clear from the graph, the velocity is constant (c) throughout the time interval.
Nikola Tesla first invented the radar because he knew the America needed help in World War I since German U boats sank hundreds of our boats. Sure it could only detect roughly 6feet out, but it was a start.
The Signal Corps' Electrical Laboratory of Washington, D.C., and the Signal Corps' Research Laboratory of New York merged with the Radio Laboratories here in 1929 to form the consolidated Signal Corps Laboratories. The scientists of those labs developed the first U.S. aircraft detection radar, among many other things, between the wars.