🧵 Untitled Thread
Anonymous at Mon, 17 Jun 2024 00:42:24 UTC No. 16238701
I'm very hot and I have a window AC unit but no window. I just want to know if I plug up a window AC unit in my room, if more heat will be generated by unit than the cooling it produces.
🧵 Untitled Thread
Anonymous at Mon, 17 Jun 2024 00:31:47 UTC No. 16238692
Is there any type or brand or model of pen that you recommend for taking notes and doing math?
I had an excellent one that blew the fuck out of every regular bic ballpoint I had tried before, but never paid attention to the brand or model.
Recently a doctor stole it from me (asked me if I had a pen cuz he needed to sign some papers, left without returning it), and now I don't know which one to buy. I ca't find the same model on the internet from descriptions.
🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 22:51:51 UTC No. 16238546
I'm trying to understand how Vantablack emits heat, but I can't find any sources online. Is it just diffuse emission? That's what it seems like from what little information I've gathered. Or is it directional based on the orientation of the nanotubes? The most information I could find comes from the paper this image is from about camouflage and doesn't directly address the question.
🧵 Matrix calculus
Anonymous at Sun, 16 Jun 2024 22:45:08 UTC No. 16238531
Why is it so hard to find resources on matrix calculus? the only actually useful resource I could find was the derivatives chapter of the matrix cookbook, yet I see matrix calulus used in many places (eg. in optimisation problems where the derivative is used).
It seems like there is some secret resource everyone practices to get good at it but I can't find it. Is there a proper book on this with problems and solutions? And no, it's not the same as single variable or multivariable calculus because we're differentiating with respect to a matrix
🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 22:43:08 UTC No. 16238527
The more math I learn the bigger the mountain of what is left to learn becomes. Is it even possible to learn everything math has to offer?
I just want to stop being stupid
🗑️ 🧵 The Youngness Paradox
Anonymous at Sun, 16 Jun 2024 22:03:09 UTC No. 16238466
Alan Guth, the theoretical physicist at MIT who first developed the theory of cosmic inflation, developed his own solution for the Fermi Paradox that could be harder to believe than the simulated universe argument.
In a paper called “Eternal Inflation and its Implications,” Guth used the physics of inflation to elegantly show that each universe (by the way, we’re assuming the existence of an infinite number of universes) likely has only one advanced civilization.
Here’s how the argument goes: according to Guth, cosmic inflation spawns an infinite number of pocket universes at an extraordinary rate. In fact, every second number of pocket universes increases by a factor of 1037. Therefore, Guth argues, we can assume that young pocket universes vastly outnumber older universes. In other words, the average universe is remarkably young.
Guth then postulates that there is a minimum time—let’s call it T—required for intelligent life like ours to develop. Because we’ve already developed, we know that the age of our universe is greater than or equal to T.
Let’s imagine there is another civilization in our universe more advanced then ours, and for the sake of argument, let’s assume that it is one second more advanced. If the minimum time for our civilization to develop is T, the minimum time for this more advanced civilization to develop is greater than or equal to T + 1s.
Because the number of universes that satisfy the T requirement is 1037 times the number of universes that satisfy the T + 1s requirement, and because we know only that we live in a universe that satisfies the T requirement, it is extremely unlikely that our universe also satisfies the T+1s requirement. It’s unlikely, therefore, that there is an alien civilization in our own universe even one second more advanced than ours.
🗑️ 🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 21:25:25 UTC No. 16238391
Why are scientists so unethical and dishonest?
🗑️ 🧵 Thought Authenticator
Anonymous at Sun, 16 Jun 2024 21:16:21 UTC No. 16238371
How can I make sure my thoughts aren't being tampered with? How do I know thoughts weren't added, subtracted or modified?
🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 21:10:52 UTC No. 16238357
Is it possible to become a chemistry maxxer when you don't have access to a lab? I want to know at least in theory what everything looks like on a chemical level. What's a good textbook progression for that goal?
🗑️ 🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 20:39:20 UTC No. 16238290
How do I study 15 hours a day?
🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 20:27:43 UTC No. 16238269
Can't we just use excess generated energy to raise up a huge boulder using some ropes and then lower it slowly when we need the potential energy?
🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 20:18:17 UTC No. 16238250
will we ever break through the quarkian boundary?
Question #2: it is even scientifically useful to do so?
🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 20:11:57 UTC No. 16238238
>figure out nuclear energy
>keep using solar, coal, and other more polluting alternatives
>figure out how to make nuclear bombs
>just use trenches, tanks, and artillery like it's the 1900's
Why are humans like this?
inb4: >muh groundleeching nooklear waste.
it can be recycled
🗑️ 🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 19:59:28 UTC No. 16238209
Welcome to /sci/: The new /sci/ wiki https://4chan-science.fandom.com/wi
🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 19:55:51 UTC No. 16238204
>Energy can’t be created or destroyed
Uh so shouldn’t the universe contain 0 energy if it can’t be created?
🧵 A city on the edge of a black hole?
Dr. No at Sun, 16 Jun 2024 19:37:39 UTC No. 16238179
/sci/ I posit this:
When a black hole is consuming another star with enough force to create jets, the particle stream would be thick enough to build a city/landscape/wtf ever in top of it.
Of course I'm talking about having sufficiently advanced levels of magic-science.
🗑️ 🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 19:27:13 UTC No. 16238164
Why are electric cars so dangerous and unpredictable?
The one in pic spontaneously combusted and killed a family of 5.
If you're in an electric car when it catches fire the doors lock shut because the locks are electric, its like they designed them to be death traps. Why can't science do better than make dangerous cars that burn their owners to death?
https://www.youtube.com/watch?v=dUh
🗑️ 🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 19:09:30 UTC No. 16238138
Is there anything close to NZT-48 from limitless?
🧵 I took 2 viral vector shots (sputnik), how fucked am I
Anonymous at Sun, 16 Jun 2024 18:24:47 UTC No. 16238079
At the time I misunderstood how it worked and soon after my second shot I found out it basically works exactly like gene therapy and probably could be considered as such. Will I be fine or is it likely I am fucked in the longterm? How likely is dna damage? Never had any side effects besides a mild cold for a day right after injection. Is high igg4 only caused by mRNA shots? will they ever get back to normal levels? If you are going to post some schizo nonsense back it up with a reliable source,
🧵 Untitled Thread
New Barkon at Sun, 16 Jun 2024 18:04:42 UTC No. 16238060
Is something wrong with nature?
🗑️ 🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 16:23:48 UTC No. 16237956
What if the universe is moving away from us at an accelerating rate is because we are scary?
🗑️ 🧵 How to get ADHD right?
Anonymous at Sun, 16 Jun 2024 15:40:04 UTC No. 16237899
Hi /sci/
My psychiatrist told me to take a WAIS-4 test to get a diagnosed. and I'm going to sit the test this Thursday.
I want to be diagnosed with ADHD to get my so delicious adderall.
Which sections of the test I have to deliberately do wrong and which do good to be diagnosed with ADHD?
And yes, my psychiatrist thinks that the IQ test is necessary for my diagnosis.
🗑️ 🧵 Untitled Thread
Anonymous at Sun, 16 Jun 2024 15:25:48 UTC No. 16237885
There is balding in my genes especially in older siblings and I am an older sibling too.Am I just doomed or is there any other way to prevent this /sci/bros?
🗑️ 🧵 Chimp uses water to retrieve peanut
Anonymous at Sun, 16 Jun 2024 15:07:59 UTC No. 16237866
Realistically how many Americans could solve this?
https://www.youtube.com/watch?v=fPz