To: Heartlander
The rpm has to be theoretical. No way they could measure it.
33 posted on
07/26/2018 12:22:17 PM PDT by
raybbr
(That progressive bumper sticker on your car might just as wll say, "Yes, I'm THAT stupid!")
To: raybbr
You should see the tiny tachometer cable.
51 posted on
07/26/2018 12:47:55 PM PDT by
Jewbacca
(The residents of Iroquois territory may not determine whether Jews may live in Jerusalem)
To: raybbr
Let alone balancing it before spinning to said high speeds. Actually, only the purely balanced ones can survive those speeds. Good luck finding one. :-)
61 posted on
07/26/2018 1:28:51 PM PDT by
SgtHooper
(If you remember the 60's, YOU WEREN'T THERE!)
To: raybbr
Perhaps the rotor/light interaction changes the polarization of a reference light source. The differential then allows determining the rotation rate.
To: raybbr
60 gigahertz. It’s measurable, in the upper end of the microwave part of the spectrum. I work with radars for tank level measurement that operate around 23 GHz.
79 posted on
07/26/2018 4:15:12 PM PDT by
Fred Hayek
(The Democratic Party is now the operational arm of the CPUSA)
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