My medication is billed as "thousands per month" but the insurance company pays a different rate than the 'billing' rate and all I pay is $20/month for my biologic infusions. If I didn't have insurance I could enroll in the drug program and get it nearly free. I think its really very rare for the case you mention.
AFAIK, Electron holes refer to the P-type charge carrier in a semiconductor lattice where the absence of electrons behave similar to electrons in an N-type semiconductor. Benjamin Franklin was not concerned with solid state physics rather he's referring to the charge carrier in a conductor being positive when we later discover that its negative (electrons). When current flows through a conductor its just electrons (not holes) moving from negative to positive.
So it's significant in that these aren't toy devices, they fit in a very similar place in the engineering ecosystem as conventional wind. They should be a real competitor.
Are you really comparing a single experimental turbine's handwaved output with the consumption of an entire state with a population as big as the bigger European countries?
I never found it so, as going through "liberal" media I tend to see far fewer lies than I do when I wonder over to the world of mainstream conservative news.
It’s true US isn’t competitive but what you looked at was hobbyist PCB services which is not representative of the industry as a whole. I get the frustration but i don’t see how you can draw any conclusion from it.
It is not just hobbyist. My friend runs a business of smart stove tops and they do have a lot of R&D which needs small runs as they fine-tune the electronics and test them out. All the R&D is now moving out.
Engineering often needs one off PCBs until their design is trusted enough to work. That doesn't look any different from what a hobbyist wants other than the account type. (final manufacturing will likely be done by someone else)
Power line losses are proportional to I^2R so whether its DC or AC isn't really the concern. V=IR so assuming R is constant, a higher transmission voltage results in exponentially lower power losses. DC is actually whats currently used for long distances to achieve lowest power line losses (HVDC).
True, skin effect limits the conductor size (~22mm in Al @60Hz) but overhead transmission already uses bundled conductors to address that as well as to improve mechanical strength, cooling, and reactance. The advantage of HVDC is in the lower dielectric and reactive losses while skin effect is minimal.
