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用一架普通的黑白电视机就能测光速.我想你一定会乐意去做的。把电视机放在测试者与电视台发射天线之间,调整电视机接收天线,使它垂直于电视机与发射天线的平面(见附图).将频道开关拨至该台频道,调节电视机上频
You can measure the speed of light with an ordinary black-and-white TV and I think you will be happy to do it. Place the TV between the tester and the transmitting antenna of the TV station and adjust the receiving antenna of the TV so that it is perpendicular to the plane of the TV and the transmitting antenna (see the attached figure). Slide the channel switch to the channel to adjust the TV’s upper frequency