Are you able to:
Because these are all also just arbitrary hand signs that have no “physically interact with an object” grasping motion.
In particular, if you can thumbs up/peace sign/middle finger without significant mental exertion, then I think you should be able to rock/paper/scissors too.
Hi, so I was thinking about moving to Germany or Russia, but I have a question: which one is more open-minded? If I participate in the exchange program, I will inevitably be in Germany, but as for Germany or Russia (or maybe Latvia or Kyrgyzstan)… Which of these four countries is the safest?
Ah, yes, quite a few systems use that. Iirc, when I first got into research I believe it was SPSS that have me pause (maybe STATA) when dates seemed to reference day in the 60s. It’s been a while so I don’t remember the specifics, but I always thought it was a neat way to handle dates.
Maybe it was 1 January 1970, the Unix epoch
quora.com/What-if-you-walk-forward-on-a-ship-movi….
Because of relativistic effects, from your point of view on the train you would just walk forward. But you would notice a strange effect while the trains were accelerating: your atomically synchronized wristwatch has slowed down and stopped counting time. So it seems that your journey to the front of the train takes no time at all.
From someone standing on the side of the tracks catching a glimpse of you and the train as you whizz by, the front of the train is moving at light speed. You’re at the back of the train completely frozen still, unable to move forward because the front of the train is moving away at light speed.
Weird things happen when you’re talking about the limits of physical reality.
Answer (1 of 12): What if you walk forward on a ship moving at light speed? Your ship can’t travel at lightspeed, because it’s not a bunch of photons. Now, you can be going at *almost* the speed of light relative to an observer in another reference frame, in which case you use the formula for t...
Sound is air vibration
Sound is not exclusive to air, it can be generalized to vibrations in any media. Whale song and dolphin echolocation are certainly sounds, and we’re almost always talking about them propagating in water rather than air.
which has to travel from one place to the next
No, that isn’t how sound works. In air this would be a description of wind, not sound.
just transfer kinetic energy to the adjacenct atom
This is actually a good description of how sound waves propagate.
