Loseby’s Isochronal Spring

[John HaineParticipant @johnhaine32865]

I though they gave more information but there just seems to be this paragraph:

"Preliminary experiments have been made with this spring arrangement on an electrically driven pendulum without barometric correction,and no change in rate could be detected for a change in total amplitude of about one half inch. Such a change in amplitude caused more than a second a day change in rate before the spring was connected. The
accuracy of measurement was to about 0.01 sec. by comparison with time signals from WWV by means of an oscilloscope."

[david bennett 8Participant @davidbennett8]

Looks like it is time for the arduino-boys to start experimenting.

dave8

[Author]

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