@rjquillin I managed to learn to speak a few words (such as ありがとう and こんにちは) when I worked for a Japanese company and on a couple of visits to our headquarters in Japan.
@rjquillin The most remarkable was visiting a 30’ deep underground facility where precision scales were manufactured and inspected. They had a chart showing a temperature flucuation of .01 degrees C over 24 hours. When some of the scales were inspected, after someone placed them in the inspection room they had to wait 4 hours for the effects of the human presence to dissipate before the inspection process started. Absolutely amazing technology.
@Mark_L That reminds me of a researcher I work with at CASS at UCSD who was using the corner cube retro-reflectors left on the moon and laser range finding bounced off them to do earth-lunar ranging to sub millimeter accuracy. He had to use a superconducting absolute gravimeter as a coefficient to correct for local surface disturbances from tidal, atmospheric pressure, temperature and other influences I don’t recall. That thing could easily quantify the change from something as thin as a sheet of paper being removed from under it. Absolutely astounding to me what he was able to accomplish. I was involved in construction of an instrument to detect air traffic and inhibit the laser when our safety volume cylinder was breeched.
Gad, I do enjoy what I do now, but sure miss the stimulation on campus.
@rjquillin Incidentally, some of the scales produced at that facility (using photo-lithography etching) were extremely low-expansion scales with a resolution of 10 nanometers.
Does sarcasm count?
No, I’m 'Murican!
And I do admire those who can.
At one time I was very close to 6th grade spoken and written fluency in 日本語
@rjquillin I managed to learn to speak a few words (such as ありがとう and こんにちは) when I worked for a Japanese company and on a couple of visits to our headquarters in Japan.
@Mark_L Thank you and hello
Yes, very important to know for peer conversations.
And I’m envious, what a great opportunity.
@rjquillin The most remarkable was visiting a 30’ deep underground facility where precision scales were manufactured and inspected. They had a chart showing a temperature flucuation of .01 degrees C over 24 hours. When some of the scales were inspected, after someone placed them in the inspection room they had to wait 4 hours for the effects of the human presence to dissipate before the inspection process started. Absolutely amazing technology.
@Mark_L That reminds me of a researcher I work with at CASS at UCSD who was using the corner cube retro-reflectors left on the moon and laser range finding bounced off them to do earth-lunar ranging to sub millimeter accuracy. He had to use a superconducting absolute gravimeter as a coefficient to correct for local surface disturbances from tidal, atmospheric pressure, temperature and other influences I don’t recall. That thing could easily quantify the change from something as thin as a sheet of paper being removed from under it. Absolutely astounding to me what he was able to accomplish. I was involved in construction of an instrument to detect air traffic and inhibit the laser when our safety volume cylinder was breeched.
Gad, I do enjoy what I do now, but sure miss the stimulation on campus.
Your experience reminded me of it…
@rjquillin Incidentally, some of the scales produced at that facility (using photo-lithography etching) were extremely low-expansion scales with a resolution of 10 nanometers.
@rjquillin @Mark_L well, that’s another language right there!
@Mark_L
Were those oscillator, Δ frequency based scales?