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Title: Quantum Mechanics
Added: Aug 4, 2007
Author: Acorvettes
Duration: 6:21
Description:
http://www.myspace.com/acorvettesThe Danish physicist Niels Bohr, who worked in Rutherford's lab, was the first to describe orbits of fixed size and energy in which electrons are free to travel without losing energy and falling toward the nucleus. According to this model, published in 1913, electrons can only occupy or jump between fixed energy levels and cannot reside in between these levels. In addition, once in their "ground state," electrons maintain the energy they contain. This energy keeps them in perpetual motion, allowing them to resist the attractive force of the nucleus.
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Channel: News
Tags: quantum mechanics atoms niels bohr rutherford
quantum mechanics atoms niels bohr rutherford
Youtube Comments: 1751
SICKJ0KER Says:
May 6, 2012 - We're talking about ranges not fractions. Of course fractions are infinite.In physics it needs to either be proven true, or be proven not true, or it's a theory. So "Superman" is a theory. Until proven otherwise (true or not).You don't understand what infinite is with a comment like that.
SICKJ0KER Says:
May 6, 2012 - I am talking about RANGE AND SIZE. NOT just the word "infinity". 2 different contexts and you people are confusing them with each-other by talking fractions. The universe cannot be part of an equation(except with the infinity symbol) and you people don't understand it. Nothing "approaches" infinity. You're confused if you think so. It's physically impossible to approach it because there is nothing to approach.
SingularHorizon Says:
May 6, 2012 - Infinity isn't real... there is no way to experience infinity, and there is nothing in our world that has a value of it. Mathematicians might think it is, but what do they know?
cyprus2k11 Says:
May 7, 2012 - You said if the universe/time is infinite EVERYTHING did/will happen,I disagree with that, as an example I was just giving you a set that is infinite (1
cyprus2k11 Says:
May 7, 2012 - 'In physics it needs to either be proven true, or be proven not true, or it's a theory.'With all due respect (i.e I dont mean to insult you), you dont seem to understand how science works and are making the typical mistake of confusing a layman's theory with a scientific theory.in science you can only prove things to be not true, if you cannot have an experiment that has the potential to prove an hypothesis as false, then that hypothesis is not scientific. (continued next reply)
cyprus2k11 Says:
May 7, 2012 - A scientific theory is an explanation for a phenomenon, that provides testable predictions and has falsifiable experiments. (search google for "rationalwiki disproving evolution")
SICKJ0KER Says:
May 7, 2012 - You are taking infinity out of context by dividing. Measuring total length/size is a very different thing. We know for a fact that "x" is a number greater than 1 and less than 2. But we don't know where the "end" of the universe is, therefore we can't say if it has one or not, there is nothing to even measure.
SICKJ0KER Says:
May 7, 2012 - And I don't major in physics or anything, but I always thought a "theory" was something that couldn't be proven true or false. If it was true and provable it would be considered fact?
SICKJ0KER Says:
May 7, 2012 - Infinity is very difficult to understand. I'm not saying I understand it either.IF time and the universe is infinite, it means everything can happen. Because there is no, in a way, "time limit" for it to happen. So you cannot say at the end of time it didn't happen because there is no end of time (if you believe time is infinite.)
cyprus2k11 Says:
May 7, 2012 - That was my point, a scientific theory is different than a 'layman' theory.
cyprus2k11 Says:
May 7, 2012 - I gived a mathematical example just because its easier to abstract, it doesn't has to be fractions, it can be integers for x>0, x is infinite, there is no end to it, but you can securely say, that -2 is not part of it. Now one can say that we cannot measure time and space to know what is the 'x>0' condition, but one cannot imply that it implies 'everything can happen'.
cyprus2k11 Says:
May 7, 2012 - "IF time and the universe is infinite, it means everything can happen.""If time and the universe is infinite, then that means everything did or will happen. Everything. Including physics being altered"Infinity means "without any limit" or "without end". You can have an infinite set and yet have elements that can never be part of that set. Just because time is infinite (if it is) It does not mean **necessarily** that **everything** will happen.
willwork4superpowazz Says:
May 8, 2012 - Isn't the uncertainty principle the same as the measurement problem?
georgedesilva Says:
May 14, 2012 - It is more than that!
georgedesilva Says:
May 14, 2012 - Should be......i am not clear about this stuff!
andreadb100 Says:
May 14, 2012 - Not really the same no...
andreadb100 Says:
May 14, 2012 - The uncertainty principle is if you want, part of the measurement problem, which is a broader topic.
SymmetricVortex Says:
May 19, 2012 - 45 dislikes? Someone that dislikes this explain in explicit detail "why", please.
DontPickMePlease Says:
May 19, 2012 - Infinity has to exist. Every time there is any motion, an infinite amount of fractional movements occur. How do I move 1 mm to hit my keyboard typing without moving 1/2 mm, and how do I move 1/2 mm without moving 1/4 mm, and how do I move 1/4 mm without moving 1/8 mm, and how do I move 1/8 without moving 1/16, etc. etc. I do all of these infinitely fractional movements so that I can move the whole 1 mm, and I do this because infinity exists and it is my one and only friend.
orangeturtlecatcher Says:
May 20, 2012 - If u say infinity exists, then you can't say everything did or will happen because their is an infinite amount of possible occurrences. If infinity exists you could almost say nothing will ever happen in that time is infinite and therefore the number of occurrences cannot be calculated because time is endless and therefore occurrences can't exist in time. So does everything exist or does nothing exist? Trippy stuff...
aeris0100 Says:
May 21, 2012 - Will it blend?
IanJackson33 Says:
May 22, 2012 - But will it make me a sandwich?
Gaehhn Says:
May 27, 2012 - Infinity exists but it isn't real in a way you can experience.Also sometimes semthing isinfinite and at the same time it is limited.e.g. take a balls surface. It is limited to 4*Pi*r^2 but if you imagine you could only notice 2 spacial dimensions you have an infinite surface because there is neither a beginning nor an end. The same goes for our universe only that we can notice 3 spacial dimension but there may be more we simply aren't aware of.
Gaehhn Says:
May 27, 2012 - Your name reminds me of a quote from Albert Einstein: "Some peolpe have a horizon with the raduis 0 and that's what they call their point of view." (German original: "Manche Menschen haben einen Horizont mit dem Raduis 0 und das nennen sie ihren Standpunkt.")
cyprus2k11 Says:
May 6, 2012 - 1