Some areas of the country do throw the weight in youth competitions. If you or one of your athletes is scheduled to throw in a youth meet, you will need to contact the meet director and check what size weight they will be using for the age group.
In the sense of performing as designed, most radar detectors do detect the presence of police radar in the immediate vicinity of a speeding vehicle. Whether or not that information will actually prevent a driver from receiving a speeding ticket remains to be seen, however.
The threat of bombing revived interest in a technology that had been invented several decades earlier but not developedâradar. Radar works by sending out radio waves and detecting any reflections from distant objects.roximity fuzes, like the modern one shown here, are attached to shells. A tiny radar set within the proximity fuze triggers detonation of the shell when it is close to the target. Proximity fuzes were developed during World War II, but remain in use today.