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Comment Re:I need to see more (Score 1) 711

Plug in the claimed numbers. At 1kW in, it generates 1.2mN of thrust. At 100km/s that is a power of 1.2kW. Clearly such over-unity numbers are bogus, and the only place for bogosity to enter in is in the 1.2mN/kW. That's why it must be bogus.

I'm not arguing; I'm ignorant and genuinely curious. (My last formal exposure to physics was over 35 years ago.)

Can you explain why this same reasoning wouldn't apply to any constant-thrust drive, such as a laser or microwave drive? Is it a matter of the thrust/power ratio? Is the "no-perpetual-motion" argument not that the EM drive can't produce any thrust, but that it can't produce so much?

You mentioned elsewhere that you support light-sail research. Hypothetical: Shine an ideally-focused laser upon a light sail. Does the light sail maintain a constant acceleration up to relativistic speeds?

Comment Re:Tides (Score 1) 77

I agree. The entire image is only about four times the Moon's diameter wide, which means (if my calculations are correct, bwa ha ha!) the Moon only travels through about 1-1.5 degrees of arc during the video (which is why DSCOVR could shoot it in only 5 hours). The effective pull of the Moon on the Earth is pretty much straight toward the observer the whole time.

But there are no real depth cues, so it's hard to judge that the two bodies are nearly a quarter-million miles apart.

Comment Re:The power button (Score 5, Insightful) 698

Bingo. The whole point of the Caps Lock key is that you don't have to press it over and over. "...Around 0.1% of all keypresses" is a completely useless measurement. A measurement of how many other keys were pressed while the Caps Lock was on might actually mean something.

That said, the size and placement of Caps Lock are simply a historical accident. If keyboard manufacturers wanted to halve the size and stick another key left of A, that would be fine with me. (The "context menu" key that's missing from so many keyboards these days would be a great choice.)

Comment Just who's really being hurt here? (Score 5, Insightful) 188

Actually, who's hurt if Google delists the movie's IMDB page? Heck, Google should just delist every page about every Universal Pictures title in current release. See how fast Universal finds the problems with their automated takedown notices when all their titles—all their theater listings—disgoogle at once.

Comment Re:Can we just take a vote (Score 1) 117

And 8 of the 10 Windows vulnerabilities were related to the Adobe Type Manager Font Driver (ATMFD.DLL). I don't know how much of ATMFD was written by whom, but according to Wikipedia, "Adobe licensed to Microsoft the core code." That makes Adobe responsible for 13 of the 15 vulnerabilities, including all 9 of the most dangerous.

Comment Re:No surprises there (Score 4, Informative) 117

It would have been nice if The Register's somewhat hysterical FA (much less the Slashdot summary) had made clear up front that Microsoft patched most of the Windows vulnerabilities all the way back in March (MS15-021), and the last one in May (MS15-044). According to j00ru's blog post, Adobe patched their holes in May as well.

j00ru was clear enough in his blog post, but El Reg decided to stick in one line: "Microsoft and Adobe issued patches in three updates."—six paragraphs down, looking more like an image caption than part of the article. Sheesh.

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