Richard Feynman Numbers Part 2 of 2
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- Опубликовано: 27 сен 2024
- Richard Phillips Feynman was an American physicist known for the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the super fluidity of super cooled liquid helium, as well as work in particle physics (he proposed the Parton model). For his contributions to the development of quantum electrodynamics, Feynman was a joint recipient of the Nobel Prize in Physics in 1965, together with Julian Schwinger and Sin-Itiro Tomonaga. Feynman developed a widely used pictorial representation scheme for the mathematical expressions governing the behavior of subatomic particles, which later became known as Feynman diagrams. During his lifetime and after his death, Feynman became one of the most publicly known scientists in the world.
Great example of how the most competent individuals in a profession manage to explain things using a language a 5 year old can understand. No fancy terms, abbreviations, no smugness.
Very true. It really gives me a fuller appreciation of how lucky we are to be living in a time where we can all have access to hours of lectures by one of the greatest teachers of all time at no cost.
How cool it would have been to have had this guy as a science teacher in school.
I really wish Richard Feynman and Terence McKenna were both still alive. They both deserve to be
Even my dumbass felt smart after listening to this gem. Lol
Hearing him, makes me do Physics. Seriously.
Yes, indeed! Absolutely! I'd love to ride Hoffman's bicycle in their company.
Can you imagine the discussion? Cool comment. ~thanks for paring the two
-be well
Philocognition do you know if Feynman had any experience with psychedelics
@bytedildo No. This is one hypothesis to account for the data collected in a, at the moment, controversial study. There are many others, most of which include simple errors in measurement. In addition, we don't see superluminal neutrinos (assuming that's what you meant by neutrons) in other places, e.g. astronomical events that emit both neutrinos, which contradicts the findings of the study, and lends support to the experimental error hypotheses.
I think a teaspoon of super dense quasar matter wouldn't just fall through the ground to the center of the Earth, it would pull the Earth down into itself as it becomes the new center of a teaspoon + 1 EM :-()
> it would pull the Earth down into itself
This is true for any two gravitational objects. They exert a pull on each other, "falling" towards each other. In the case of quasar matter, though, it would either just explode or disperse (probably explode), since it no longer has the extreme pressure of the star around it to keep it dense.
thanks for this its awresomeeee
@weavehole True but he's just trying to expose how concentrated it is.
if light has no mass, what keeps light from escaping a black hole?
Or, perhaps, black holes don't generate light?
need help here
Don't know if you looked this up by now but the idea is it's so much mass in such a tight space, that since by general relativity mass curves space, there's a crazy high amount of curvature there, so that light still travels at the speed of light but is traveling this ultra long path because of all the curvature. So long that it never manages to leave.
thx, that makes sense - so light is trapped in infinitely (almost ) tight curves. or does a blackhole not even generate light at all - curves or no curves - i guess we'll never know or will we?
ok
Well, something not yet observed but thought to be correct from a mathematical standpoint is "Hawking radiation", which Stephen Hawking predicted. It states that sometimes particles (including light) "slip out" of a hole. They do not exit the hole at all from Einstein's General Relativity theory. They DO when you consider quantum mechanics (which we know is how nature really behaves). How THAT works is most easily explained as there being a probability, however small, for particles (including light) to just sneak through the event horizon, and that's that. So yeah, in that sense black holes ARE thought to generate light (and other small particles), and because of this over vast vast amounts of time they're expected to eventually "evaporate" so to speak, by gradually losing that energy. Even though Einstein's theory says nothing can escape. Because Einstein's theory, in the end, is wrong.
thx, makes sense
so. is the universe infinite? and we just dont know it yet?
@alpha431 it's even cooler that i have him as a private teacher on youtube.
at the time of writing this there are less than 10k views on this video. how freaking sad
45k views now.. after 8 freaking years!
lol at thumbnail pic xD
@KutuluMike
I am nothing if not pedantic.
:)
(Definitely not a physicist though (obviously))
for years I've used this little mental exercise to help envision large numbers- It starts with a simple question: Do you think you could lift a million grains of salt? How about a billion? If we assume grains of a size where a thousand would be a gram, a million would be a thousand grams, just over 2 lb... most people could lift this. a billion would be over a ton and would nearly fill the bed of a small pickup truck so, you couldn't lift a billion. a trillion would fill 30 truck and transfers... Which is almost as much salt as my former drummer would put into a pot of soup. blegggh..... drunks do weird things.
peace.
@slimnotskinnytexan and what a loss when he was no more
This makes 0 fucking sense
Would I be right in guessing that if you put a small piece of a neutron star on the surface of the earth it wouldn't so much fall through the surface as attract the Earth up and around it?
How cool that he said that nothing is faster than light, but that is wrong :) Neutrons are faster than light, because they travel in hops through higher dimensions where light travels faster :)
I wish I could thank him for making me realize that science, phisics is not dull and boring, but interesting and fucking awesome!!!