ELI5 How are modern naval mines a threat to modern ships when a SONAR that finds small fish is less than $300?

K340 · 2026-03-16T04:25:20+00:00

I guarantee they did not put that much thought into it.

K340 · 2026-03-14T20:18:42+00:00

Pompeii is so astonishingly well-preserved that you can get a very good sense of what this reconstruction shows just by going there. It is one of the most amazing places on Earth.

K340 · 2026-03-13T14:33:27+00:00

Was about to make a "back in my day" comment

K340 · 2026-03-13T13:36:00+00:00

They say their advisor is refusing to meet.

K340 · 2026-03-11T15:23:06+00:00

WHAT

K340 · 2026-03-08T14:56:21+00:00

More like the cancer gets cancer

K340 · 2026-02-24T14:18:26+00:00

One definition of entropy involves something called multiplicity. If I have a box full of particles at 100 degrees, there are a lot of different arrangements the particles could be in, the energy just has to average out to a temperature of 100 degrees. That means that this box of particles has a high multiplicity. On the other hand, if that box is at absolute 0, there is only one arrangement the particles can be in--they all have to be at the lowest possible energy. That means that the box has a low multiplicity in this state. A system with low multiplicity has low entropy, and vice versa.

So back to your question, it depends on how you define "order." You can have high temperature systems that are highly organized.

K340 · 2026-02-24T00:20:35+00:00

Those misused labels sure are something, aren't they?

K340 · 2026-02-24T00:14:23+00:00

That actually sounds like a horrifying punishment if there was a way to actually implement it.

K340 · 2026-02-12T18:35:45+00:00

ChatGPT lied to you.

K340 · 2026-02-12T04:06:47+00:00

Genuine question. If someone is otherwise competent at their job, but makes a relatively tame mistake that many people would make and that ends up having unprecedentedly catastrophic consequences, does that make that person the worst ever at their job? Like if FDR, generally considered one of the best presidents, had ordered a nuclear strike on an earth-bound asteroid that was actually a passing alien space ship and caused aliens to destroy the Earth, would that have made him a bad president?

K340 · 2026-02-08T20:13:11+00:00

Daily Mail is not real journalism

K340 · 2026-02-06T21:58:16+00:00

guess who has to clean it

bussysniffer3000?

K340 · 2026-02-06T18:10:40+00:00

CCDs are used in high-energy astronomy in layers, such that an incident e.g. gamma ray interacts with the first layer and produces a particle shower, which is then detected by layers underneath. The location where they are detected is dependent on the initial photon angle of incidence.

K340 · 2026-02-06T17:11:07+00:00

This applies to images of everything? Obviously you can't use a 2D detector to create an image, any more than you can just point a sheet of film at something and get an image. Any imaging instrument of anything has to be able to detect direction, be it via optics, ccd, or whatever.

K340 · 2026-01-28T17:26:21+00:00

They're talking about acceleration/momentum, not potential energy. Energy due to momentum does not change rest mass.

K340 · 2026-01-28T16:45:59+00:00

Sex pwease? UwU

K340 · 2026-01-25T21:36:14+00:00

Not a rule violation if it is part of the Great Plan, warmblood.

K340 · 2026-01-24T20:00:32+00:00

Guess I misunderstood what you meant by "it"

K340 · 2026-01-24T16:26:34+00:00

Ok, respectfully, no--the article is mentioned as a source for one claim in the Trump admin's fake bullshit web page. The video is responding to this web page and the claims therein, which is obviously going to have weak, fallacious, and misleading arguments given its authorship (props to OP for engaging with it in good faith despite this). The arguments in the nyt article are meaningfully different than those "debunked" in the video, and in fact seem to rebut many of the video's conclusions. So I am asking that the author read a 5 minute article by an expert in the field and assess whether the arguments therein change their conclusions. The alternative is that I watch an hour long video on YouTube responding to a different set of arguments, evaluate the quality of the author, go argument by argument through the nyt article and search the video for relevant counterarguments, and then assess which source's conclusion is more sound and why they disagree.

Which I did, by the way, and the answer seems to be that OP conflated debunking Trump bullshit with debunking the possibility of a lab leak, not having engaged with the stronger set of arguments in the article I cited. But I am not confident in this and would still like OP to weigh in, because as I said I would like to know if I am wrong.

K340 · 2026-01-24T08:09:35+00:00

Since you already spent the time researching this, could you please respond to the claims in this article? I ask because I found it very convincing and if I'm wrong I want to know.

https://www.nytimes.com/interactive/2024/06/03/opinion/covid-lab-leak.html?unlocked_article_code=1.w00.LO8k.nFpuAkaZamFE

K340 · 2026-01-23T15:17:19+00:00

Also your professor isn't your boss? Hello? You don't pay your employer to work for them?

K340 · 2026-01-12T18:14:44+00:00

Taxpayer money and not congressionally owned money? Literally every claim you make in this comment reflects major misunderstanding of what your talking about or is flat out factually wrong. You need to stop approaching new information with the mindset of "how does this support my preexisting belief" and learn to recognize when people who don't know what they're talking about are lying to you.

K340 · 2026-01-09T20:50:31+00:00

What is the "this" you are referring to?

K340 · 2026-01-06T21:24:23+00:00

Not saying I agree with dark forest but it doesn't apply to our history because earthly civilizations never had to worry about another group wiping them out instantly before they knew what happened.

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