Friday, August 27, 2010

How Do You Tell Time?

Throughout the ages, there’ve been many different ways in which people have kept track of the time, each with their own level of accuracy.The most accurate method ever developed have been the atomic clocks of the modern age, but even these have their drawbacks: Namely, they’re huge because of the need to contain any and all radiation involved with using cesium-133 to measure each second.That’s why there are more clocks that take a radio signal from an atomic that’s somewhere else than there are actual atomic clocks.These “satellite” timepieces aren’t quite as accurate as the ones they depend on, but they are nevertheless accurate enough to manage all of one’s life without the problems of models that either lose or gain time too fast.

Of course, even those clocks are more accurate than systems that use sand or water to flow from one vessel to another – those have to be reset on a regular basis, which is very hard unless someone is watching them constantly.If they aren’t reset as soon as they run out, they “lose time” until someone notices and does reset them.That’s why it’s best for most people to just use ordinary wall clocks that operate through electronic methods to track time.They don’t need to be reset, and some of them are almost as accurate as the big atomic models that only lose a second every million years or so. Of course, all of these are good choices if they’re used because the owner specifically likes the kind in question.

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