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Comment Related tidbit (Score 4, Interesting) 34

A subsequent mission did install a similar listening station and RTG. But each time they visited it thereafter, the RTG had buried itself deeper into the surrounding snow. So the thinking now is that the one on Nanda Devi, after falling in an avalanche, gradually melted its way down deeper into the glacier until it hit rock.

Comment Re:Robot vacuum cleaners - meh (Score 1) 70

A real vacuum cleaner just about maxes out a standard residential 120v 15a circuit, as anyone who remembers the incandescent bulb era can attest to. A circuit with a few lamps shared with a vacuum cleaner could easily end with you flipping a breaker or replacing a blown fuse.

When you look at the absolutely tiny lithium ion pack these robo-vacs come with, ...

Sitting on my kitchen table right now is a drone pack. It's 57,5Wh, smaller the batteries of most modern Roombas. It's 50C - thus it can output up to 2,9kW. And there's even higher packs available than that. Lithium ion cells can handle some truly high power outputs. It's *energy*, not *power*, that is their limitation. Run a pack at 50C and it'll be empty in a bit over a minute. That said, on hard floor surfaces there is absolutely no reason why you should be drawing more than 300-400W or so, and you can get by with well less than that. High powers are for like shag carpeting and the like. Also, the head matters more than the power (though of course contribute) - for a hard floor, for example, a fluffy roller head is ideal.

Comment Re:Rejected the AMZN Aquisition? (Score 3, Insightful) 71

Facts. I used to have a Roomba for years, but as I live in Europe, it was getting increasingly hard to deal with modern features (like the self-emptying base which needs 120V power). I reluctantly switched to a Roborock when my power converter died, and just, wow, they're light years ahead of iRobot. I think iRobot has been coasting on its name for a while now.

Comment Re:Trump pardon? (Score 1) 30

The Dems should make a lot of noise about this pardon corruption. It's easy to explain and easy to understand that pay-to-play pardons make a mockery of justice.

I don't disagree.

But other than being vocal about it...what recourse is there? Trump does not recognize shame, nor admit wrongdoing in any context, so it's not like he'll ever change his behavior. So what forcing mechanisms are there?
* He's not up for re-election, and so there's no accountability there.
* Congress could try to do something via legislation (e.g., require Presidential divestment into blind trusts), but 1) you'd need a veto-proof majority, which just ain't happening, and 2) would get tied up in the courts longer than Trump's remaining time in office.
* Judicial relief is off the table. SCOTUS has made it clear that bribing for a pardon is totally A-OK, because you can't ever second guess a President's core powers.
* You could try to modify or curtail the pardon power, but that would require a constitutional amendment (2/3 of Congress, plus 3/4 of all States), which also ain't gonna happen.
* And that leaves impeachment in the House (simple majority), with trial and removal in the Senate (2/3 vote), which we also all know ain't gonna happen.

Comment Re:Tiny photon particles? (Score 2) 29

I get the sarcasm, but due to wave-particle duality, it isn't entirely incorrect to say that X- and gamma-ray photons are "tiny" compared to visible light or radio. Certainly their wavelength is much, much shorter. Consequently they can be localized to a much smaller volume of space (i.e., the "wave packet" has small spatial extent).

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