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by tvb
1975 days ago
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I anticipated that, so I had relativity books and physics magazines with pictures of Einstein on the front seat just in case we got stopped and the officer wanted a quick lesson in the fun of measuring time dilation. It was 2005, the 50th anniversary of the first cesium clock, the 100th anniversary of the theory of relativity, so it was also a current news topic. Actually, a three letter agency did ask me what was going on: NPS, the National Park Service! But they kindly allowed us to park in front of the Lodge for the weekend. The advice I was given by old timers was to refer to the electronics simply as accurate clocks instead of atomic clocks or cesium clocks because many people false trigger on words like cesium or atomic. You'll notice that the official name on the front panel of a 5071A is "Primary Frequency Standard". |
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What's the cheapest clock you can purchase (used or new) where you can still do a similar experiment (i.e. that's accurate enough to measure dilatation over a day/week/month period of time)?