this post was submitted on 26 Oct 2023
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Physics

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[–] GhostsAreShitty 54 points 1 year ago (1 children)

It's interesting that people only really became aware of particle accelerators in the LHC sense. CRT televisions are also particle accelerators. It's nothing too super new.

[–] [email protected] 19 points 1 year ago (3 children)

Around 1930 they had a particular accelarator at Berkeley called the Cyclotron...they had the coolest names back then

[–] elbarto777 23 points 1 year ago (3 children)

Large Hadron Collider is also a cool name. Are there newer accelerators with uncool names, like "TD Bank Accelerator"?

[–] [email protected] 9 points 1 year ago (1 children)

"randall", he's an old baseball pitcher who just throws the atoms really hard

[–] Dkarma 1 points 1 year ago

It's pronounced Nolan 😂

[–] [email protected] 8 points 1 year ago* (last edited 1 year ago) (2 children)

Yeah, but that's just what it is and does. What's it do? Collide. What's it collide? Hadrons. How big is it? Large.

I like the Cyclotron so much better. What does it do? I don't fukken know, but it sounds cool as shit

[–] elbarto777 6 points 1 year ago

Well, it's like the Terminator. What does it do? It terminates. Still a cool name.

[–] [email protected] 2 points 1 year ago

it trons cycles

[–] [email protected] 4 points 1 year ago

I will always read its name as "Large Hardon Collider". Could be its porn name.

[–] pntha 6 points 1 year ago

Melbourne has the Synchrotron

[–] count_of_monte_carlo 3 points 1 year ago

Berkeley still has a cyclotron, though it’s a little newer (build in the 60’s) and much bigger.

[–] [email protected] 46 points 1 year ago (2 children)

Well, it is a million times smaller and a million times weaker. It accelerates from 28 to 40keV. So it a) already needs a pre-accelerator as input, and b) just adds about 35% to it.

Your run-of-the-mill CRT back in the times was an eccelerator, too, with something like 10keV, btw.

[–] [email protected] 9 points 1 year ago

the fact that the shooty fat ass boy worked at all was a miracle

[–] [email protected] 3 points 1 year ago

I thought at first you meant 28eV to 40keV and thought that's pretty impressive.

Not that I know the implications of either.

[–] [email protected] 17 points 1 year ago

Saying something is smaller than the LHC (even by orders of magnitude) isn't that hot a take. Few partical accelleraters are not smaller than the LHC.

[–] [email protected] 15 points 1 year ago (3 children)

I've got an unconventional application idea for this particle accelerator on a chip.

True random number generation. There's loads of random information that can be measured from such a device in a controlled manner.

If you could fit one of these on a motherboard then you wouldn't even need to call a pseudo random number generator algorithm anymore, you can pull data directly from the chip.

[–] [email protected] 13 points 1 year ago (1 children)

There's already hardware RNGs on computer chips -- e.g. the RDRAND instruction on most x86 chips from the last decade or so uses a hardware entropy source as part of its behavior. The quality, of course, is one of those things people go "Uh, can I really trust this...?" about though.

Additionally, PRNGs still have uses even if you do trust hardware RNGs; determinism is a very useful property in software -- it is way, way easier to debug something deterministic (by running a PRNG with a specific seed over and over while testing) even if you want the final version to be randomized unpredictably for users. They also tend to be faster.

[–] [email protected] 2 points 1 year ago (1 children)

I’ve heard that you could pull random numbers from a basic thermometer. Is a hardware RNG just based on measuring the random noise of some measurement like that?

[–] [email protected] 4 points 1 year ago

This documentation from Intel says of the entropy source that "The ES runs asynchronously on a self-timed circuit and uses thermal noise within the silicon to output a random stream of bits at the rate of 3 GHz." By thermal noise, I believe they mean this sort of noise but this is not my subject of expertise (I'm a programmer, not an EE or physicist). Not sure what AMD uses, but probably something similar, I'd expect.

[–] Cicraft 8 points 1 year ago (30 children)

Sounds more complicated than what it's worth tbh

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[–] [email protected] 1 points 1 year ago

You can already make/buy a Quantum RNG for truly random numbers.

[–] [email protected] 8 points 1 year ago* (last edited 1 year ago) (1 children)

Isn't the LHC large on purpose

[–] Agent641 4 points 1 year ago

This one has a different purpose. The LHC is for high energy experiments to discover new things about physics. The little one is potentially useful for medicine, to direct particles at target cells inside the body, for example to kill cancer cells

[–] [email protected] 7 points 1 year ago

Anything but the metric system..
Come on Wolfram Alpha, sort this shit out

(LHC (Large Hadron Collider) | diameter)/54000000

= 0.157mm

[–] [email protected] 5 points 1 year ago

Looks like 3D printing guys have another item to put on the bench next to their cnc machines and printer.

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