In physics, it’s common to develop a formula and then stick a constant to explain the unknown. For example, Newton’s theory of gravity uses the gravitational constant G on the formula F = G * m_1 * m_2 / r^2, later on Einstein gave a more accurate explanation with the theory of relativity which does not rely on a constant E...
I was reading about the production of calcium carbide, and that it involves mixing lime and coal in an arc furnace. Is there something unique about arc furnace heating that, say, an induction furnace could not provide?
What are the consequences of not severing it? I imagine you’d have the weirdest bellybutton on earth if nothing else....
Assuming we are talking about an era when Sol has a thriving space industry and the Solar system is broadly colonized. Current materials science supports structures up to 8 kilometers in diameter, and if large scale graphene production is possible, up to 100km in diameter, at least according to Isaac Arthor....
This is something I always wondered because some people have a bunch of theories about whether your head should face north or south or whatever, because of the earth magnetic field. Is there any science in this or just “superstition”?...
I feel like we are ways out from seeing anything like it. From what I’ve seen non-Newtonian fluids typically take a decent amount of energy to stop something and sound wouldn’t have much energy compared to something like a bullet....
After reading the abstract of the paper mentioned here I started wondering, why did human groups migrate away from southerner (warmer) places towards the north which is far colder and has less possibilities to grow crops and wild animals to hunt?...
People talk of potential human flight on planets. Somewhere in the recesses of my mind I still wear my inner 5 year old’s caped Superman pajamas, stressing over how many stairs one must jump from to take flight. So is it possible to flappy bird a flying monkey?
I don’t care about the math and statistics. I went looking for visual comparisons, where image exposure is adjusted to show how a sunny day on both planets really compares, but I didn’t find anything....
I’m trying to wrap my head around something that appears far more complex than I first thought. I don’t understand the explosive elements and chemistry that drives ash production and the heat to create the eruption column. I’m aware of how molten metal behaves in a foundry crucible with flux and degassing required. So I...
I bought a torch that has a 365nm UV light, which I believe is UV-A?...
I know that sound doesn’t travel in a vacuum, you can hear it muddled in water, and different temperatures of air transmit better. But which is the “best”. Let’s say you had a speaker and a microphone in an enclosed case filled with whatever you wanted, which would be the best medium to ensure the best sound...
Asking this because I’ve been thinking about resin printing and how a small layer of said liquid could, in theory, be used to make the prints faster and negate any problems regarding the FEP film (which can wrinkle, tear and be a hassle to clean when small pieces are stuck to it). The ideal liquid would have to be:...
What are the limits to it ? Exceptions etc. Context i saw vsauces " power of suggestions " video. Is the video scripted or was the kids conditions just not real like i can understand the girls condition may be cured through placebo but come on adhd and migraines immediatly cured ?
I came across David Sinclair and his research into reverse aging. Especially, I came across this video by Veritasium with Sinclair. Apparently his team has managed to reverse aging in mice in a lab? Has this been peer reviewed?...
I under stand that the lower the air pressure, the lower the boiling point of water. Also, some primitive desalination kits are basically evaporators....
I discovered the “Tromatz” bioelectric wave toothbrush, and it sounds too good to be true, which usually means… it is. However, they do link to some journal articles, so it seems it’s somewhat based on fact. There’s very, very little else out there aside from their own website that I can find. Thoughts from anyone...
So, I’ve been reading about the MIT bio suit. It’s basically a pressurized helmet and gloves, and a fancy fabric suit with bands that squeeze you with enough pressure so decompression doesn’t kill you....
Can it freeze water?
I tried finding some research and found lots about freezing matter or putting it under extreme pressure, but not trying both....
Sounds like a stupidly easy question to find out with a quick internet search, but it’s not....
Found this very useful Youtube video about How do Magnets & Magnetic Fields Work? and within it I finally found someone willing to explain greater details about how same poles repel in laymen terms. The link above takes you to the section where the Presenter explains how (as I understand him) potential energy forms between the...