I'm reasonably certain it was McDonnel Douglas that acquired Boeing with Boeing's own money. Most likely everyone who designed that plane has retired at this point anyways.
It's commonly trotted out, but the people who spearheaded the disastrous changes including mass outsourcing were Boeing for life - with McD people writing alarming memos about outsourcing goals set for Dreamliner
Agreed. I was kind of surprised to see 54 VDC mentioned. I am assuming this is low enough to meet some threshold for some kind of safety regulation. In other words, it doesn't shock you just 220 VAC would. I'm not entirely convinced of that however as it turns out bus bars are really dangerous in general. A 54 VDC bus bar won't shock you, but if you drop even a paperclip between the bus bar and a metal part that is grounded it basically disappears instantly in a small blast of plasma. The injury from that can be far worse than any shock you'd receive.
My experience has been that SELV (safety extra low voltage, less than 60V peak and less than 240VA) is considered safe and anything exceeding that needs certain levels of protection.
But bus bars generally should be protected regardless of voltage as they carry currents from high current capacity sources so even a lower voltage can be a safety concern.
Many server power supplies can take AC or DC input, with the DC input in the 300-500V range as this is comparable to the boost voltage for the AC power factor correction circuit. I just assumed most data centers using DC would be distributing around 400V within each rack.
It's funny, David Brin used to flog the idea of "sousveillance," meaning that mass surveillance was inevitable and couldn't be reformed but we could use it to hold the elite accountable. What a joke.
I'm relatively certain that neither Concorde nor any passenger jets burn aviation gas. It may be physically possible, but would be extremely ill advised given the lead additive
I'm pretty sure they weren't referring to 100LL, but either way even back in the 90s Jet-A was around USD 0.50 per gallon, in the 60s it was nearly 1/5th of even that.
Fair. Edited my comment to note that both sorts of fuels were in that price range, but didn't look up the specific fuel specification used by the Concorde.
Some version of Aviation Turbine Fuel (the other ATF) is used in passenger jets, which is either Jet A or Jet A-1 for colder, non-American flights. It is a kerosene-based fuel which does not contain any lead.
In the states I've lived installing a big screen like that in your car is against the law. Unless the manufacturer specified it as original equipment. So yes, a bigger screen is a selling point
Somewhat ironically if they were laser focused using infared lasers, wouldn't that imply the company was not very specific at all? Infared is something like 700 nm, which would be huge in terms of transistors
State of the art lithography currently uses extreme ultraviolet, which is 13.5nm. So maybe they are EUV laser-focused, just with many mirrors pointing it in 5 different directions?
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