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Comment Re: ELI5? (Score 5, Informative) 37

Fusion needs three things to work:

- A âoehighâ density of plasma (high is relative, in reality itâ(TM)s close to a vacuum)
- A high temperature (not relative, literally the hottest things in the solar system)
- A long time at those conditions.

The higher you make the product of those three the more fusion you get and the more energy you get.

At the same time though, you need to stop your fusing stuff from touching the outside of your reactor, because itâ(TM)s incredibly high temperature and radioactivity will destroy the reactor. It will also rapidly cool the reaction, shutting it down. That means you need to be really good at containing the hot plasma in the middle of the reactor.

These reactors do this by using magnets to squeeze the plasma into the middle (increasing the density), and various forms of heating to get to the desired temperatures. However, when you squeeze the plasma, it wriggles around like an eel trying to escape. At some point when you try to grip it too hard, the eel just slips straight out and shoots across the reactor into the walls. That limits the size of the product described at the start, and so limits the amount of power you can get out.

These scientists have discovered that if youâ(TM)re very careful about how you position the eel when you start squeezing you can squeeze a lot harder before it starts wriggling about like crazy.

Comment Re: Hello, Private (Score 1) 118

Also, where do I sit as a fat person? Itâ(TM)s generally considered pretty impolite for me to take an economy seat and then overflow into neighbours space, so I get business seats to have enough space for a more ⦠uhh⦠generously proportioned human.

Where do I sit as someone who has severe restless leg thatâ(TM)s badly exacerbated by sitting in the exact same position for hours, and results in me repeatedly kicking the person in front of me?

Where do I sit as an old person who canâ(TM)t stagger down the incredibly narrow aisle for the length of the aircraft and then get over a bunch of fixed handrails?

Where do I sit as someone whose pelvis is in a cast that canâ(TM)t fit into an economy seat?

Thereâ(TM)s a ton of reasons for booking business class that arenâ(TM)t just that work are paying for the ticket.

Comment Re: Soooo...... (Score 1) 47

The crazy thing is that the price increases have already made Appleâ(TM)s infamously ludicrous upgrade pricing seem reasonable. Apple want £400 for 32GB. A couple of months ago, that was 4 times over the going rate. Now itâ(TM)s pretty much normal. The cheepest DDR5 6000 on newegg is £330, and higher bandwidth stuff costs of the order of £5-600. (And thatâ(TM)s ignoring that Appleâ(TM)s on chip RAM is anywhere between 50% faster and 300% faster than high end DDR5 depending on the chip).

Comment Re: Soooo...... (Score 1) 47

Because youâ(TM)re a nerd probably. That said, the article seems to motivate things rather poorly.

I donâ(TM)t get how anyone would ever expect this to be cheep though. The reason RAM is expensive is because the production capacity for chips is being used to produce GPU RAM for AI data centres, not because thereâ(TM)s some disconnect between chip prices and DIMM prices. Buying the chips is going to be just as expensive, because the chips, and production capacity are needed elsewhere. Whatâ(TM)s most likely to happen here is that you get a bunch of chips that failed QA and then leaked out to the (dark) grey market Chinese sellers.

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