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Comment Re:claims (Score 2) 48

Efficiency is based on differences in energy that are economically accessible, not on some rambling theories in a newline-free paragraph.

You can access room temperature. You can' economically access the blackness of outer space from the earth's surface. Likewise, you can access the negative terminal on your battery, but not some static charge in the upper atmosphere.

You pump X amount of energy into a heat engine, it expels that energy to an accessible exhaust, and typically 70 to 95 percent of that energy is *not* converted to work. You pump X amount of energy into a battery, it dumps that energy through a motor to its negative terminal, and only 5 to 10 percent of that energy is not converted to work. That's the only way to practically analyze the situation.

We could also all have infinite free energy if we could access the levels below the zero point energy in the quantum fields. One little problem: that's not accessible either.

Comment Re:claims (Score 4, Insightful) 48

For the example in TFS of 200F water and assuming room temperature exhaust, Mr. Carnot says that the max possible efficiency is less than 20%. Any real world engine, including this one, probably ends up at a low-to-mid single digit percent efficiency. IOW, the vast majority of the heat would still be wasted.

The operator of the facility generating the waste heat might get more energy savings at lower cost by tweaking their processes to be a few percent more efficient in the first place, instead of trying to recover this low-grade energy source with an elaborate engine and plumbing.

Comment Re:Linus is right, but this is really not news (Score 1) 80

Before NT, Windows was an absolute mess. I think the only reason most people put up with it was that they didn't know anything better was possible and since Windows was so widespread it was a misery everyone shared.

I think that many of those people were also recent DOS users. Given that DOS systems would often simply freeze up several times per day and require a reboot (easy to do since any bug in the user's application could do this), once they added a protected mode pseudo-kernel to Windows (maybe starting with Windows/386 2.1), it was actually a slight improvement over what they were used to since DOS crashes could sometimes be isolated to one virtual terminal.

Comment Re:Fungus vs plant (Score 4, Insightful) 47

It's kind of a suprising to me that it was a fungus and not a plant that developed this ability. After all, plants already feed on elecromagnetic radiation.

The chlorophyll in plants is finely tuned to absorb specific wavelengths of light. It already has a hard time with green light compared to blue light, and it's simply not going to work at all with radiation that has wavelengths that are orders of magnitude shorter. Chlorophyll acts like a little antenna that gets excited by certain light frequencies, but ionizing radiation would just blow the chlorophyll molecules apart and destroy them.

Taking advantage ionizing radiation is going to require a completely different mechanism than plant photosynthesis, just like you can't use glass lenses or parabolic mirrors to focus X rays or gamma rays. Plants probably have no more chance of having such a mechanism than fungi do.

Comment Re:Not surprising to me... (Score 3, Insightful) 56

Those mitigations could cause other problems down the line, so it makes sense that Microsoft didn't want to deal with those for Windows 11.

IOW: "We've only got $3.5T in capital to work with, so this is just too hard for us to figure out. You'll have to switch to an OS made by unpaid volunteers."

Comment Re:Aluminum (Score 1) 35

What will they call it in the US ?

We should call it "job incomplete".

Most common metals have a simple one or two syllable name: Iron, Copper, Tin, Zinc, Lead, Nickel, Silver, Gold, etc.

The USA recognized that to some extent and got started by chopping off one extraneous syllable, paring it down from five to four. However, once it was realized that Al would be a common everyday material like iron, we should have gone ahead and pruned it all the way down to two syllables, maybe something like "Alem".

Comment Re:I can see why they ignored it for so long. (Score 2) 35

I can see why they ignored it for so long: having multiple places to put dot files for a single app is irritating.

Not nearly as irritating as having dozens of random dot subdirectories in the root of your home directory.

The first issue costs a few developers a few days of their time to fix. The second is a problem that nags millions of users for eternity.

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