Measuring e/m for an electron
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Grahame Marsh
Dec 9, 2013, 1:31:06 PM12/9/13
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Time to blow the dust of that 2AP1 CRT and measure the e/m ratio of an
electron.
http://youtu.be/7pbfzp8DlYQ
I've told Javier about neonixie so I hope he is lurking by now.
Grahame
David Forbes
Dec 9, 2013, 2:10:38 PM12/9/13
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Grahame,
That's a nice little experiment. The error may be due to the fuzziness
of the cancellation.
I once helped my boss and his son measure the speed of light with an old
laser pointer and a fiber-to-Ethernet converter's photodiode module,
using a telescope and a mirror in the neighbor's window. It was accurate
to a few tenths of a percent!
--
David Forbes, Tucson AZ
That's a nice little experiment. The error may be due to the fuzziness
of the cancellation.
I once helped my boss and his son measure the speed of light with an old
laser pointer and a fiber-to-Ethernet converter's photodiode module,
using a telescope and a mirror in the neighbor's window. It was accurate
to a few tenths of a percent!
David Forbes, Tucson AZ
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