MengerSponge
Joined 11 years ago
Joined 11 years ago
You can kind of isolate the different vibrational modes and their corresponding energy transmission. "Phonons" are basically sound waves (the particle analogue), labeled in figure 2: https://www.nist.gov/system/files/documents/2019/07/12/dcs_2...
If you work a good 9-5 you've got several hours each day to tinker. Also, nothing in that video was 100k+. A nice watchmaker's lathe is ~10k. A full CNC enabled Bridgeport mill is 12k. That shop could be assembled with care for ~20k, or carelessly for ~50k. It's not nothing, but it's less than a boat. It's less than a country club membership. It's less than a few trips to Disney World.
https://www.nytimes.com/2012/07/29/books/review/how-to-sharp...
Superfluid helium's maximum thermal conductivity is roughly 100x diamond's maximum!
They're trained to not maim or kill. More training won't fix it. More money and more resources won't fix that systemic rot.
40%, after all.
He has a long-running series where he works to make a new Antikythera mechanism using ancient (bronze age) technologies. He's a master machinist, so he has fabulous insight into workholding, precision, etc. https://www.youtube.com/show/VLPLZioPDnFPNsHnyxfygxA0to4RXv4...
His skeleton clock build is one of my favorite pieces of internet content ever, up there with Bartoz's gorgeous webpages: https://ciechanow.ski/cameras-and-lenses/
These guys will tell you their industry is more dangerous than nuclear power, and we regulate the living shit out of nuclear power. If you think models can't be regulated, look up the export controls on MCNP and tell me how that's different.
It's the same as a buttonhole camera used for spying. The differentiator (vs a phone or SLR or similar) is that its primary function is concealed.