/sci/ - Science & Math

Fun fact: There's no gravity inside a falling elevator.

Greetings, Albert

>>3002105

You seek "why" for __insert random science thing__. This is basically saying you seek a "cause". Ok, but what do you want the cause in "terms of"? What level of physics do you understand already?

The problem is also that you cant dumb down a lot of things, the "cause" you seek will end up being more complicated (to the lay person), then the "effect itself".

RESTATE YOUR QUESTION SON!

UNTIL THEN YOU JUST GET THE MOST FUNDAMENTAL REASON = RELATIVITY MINIMIZES THE ACTION

http://en.wikipedia.org/wiki/Principle_of_least_action

>>2711762
Nowadays Mass is general stated in terms of "rest mass". The mass of the object if it were at "rest".

The idea of defining a "realtisic mass" that depends on the velocity of the object is outdatated, and isnt used in the physics community.

Hence, whenever we talk of mass, we mean rest mass. And rest mass of an object does not depend upon its velocity.

>>2686587
"some things" can go faster then light.
Information cannot travel faster then light.

>>2686608
Correct

>>2549628
Yes, the model is called the standard model.

Anti-matter is fucking everywhere, that shit is trivial. It behaves just like regular matter, just with some sign switches. It also can be thought of as regular matter, propagating backwards in time.

Time is to space, as imaginary numbers are to real numbers. The "unique" properties of time arise from the way we percieve imaginary numbers. We need to take "norms".

Multiverse branes are not part of physics. String theory is not considered "known physics", as it has no validiation whatsoever. Until we can actually experimentally confirm some of its tenets, it is just fancy math, not science, not physics.

>>2337271
>would there be any observable difference between this person and myself?

No, except he/she would not be stable in the region of space.

However if you also reverse the persons spatial symmetery. Ie, he is a mirror imagine of you, not a exact copy, then the answer is unsure.

You may have some werid Charge-Parity shit happen on a fundemental level. Not sure if this phenomena would have any affect on the macroschop level, or a noticble human level.
http://en.wikipedia.org/wiki/CP_violation

Matter and Anti-matter should be symmetric in everysense, but experiments actually say they are not.

>>2209890
Entropy is fundementally a measure of accessibility to quantum states.

>prove it exists everywhere

Every system has quantum states, hence you could define a measure called "entropy" for any system.

>>2102996
Why don't you act like a professional then and go to your local university, and ask around. Why you using 4chan? It doens't make anysense? Explain please?

>>1865850
what kinda polarizer?

>>1732010
>Does particle wave duality imply that broadcasting antennas emit particles and if so what, electrons?

I am pretty sure they just emit photons. I guess somtimes electons could be emmited to. Electrons are kinda everywhere and always leaving and clinging on to shit. But they arent really "created" in the antenna. Photons would be "created".

>>1610882

>Magnnets?
This is basic EM. The magnet is nothing but the SR effect of the Electronic. This is basic physics. If you actually have a question I can try an answer, but "how do they work" is way too vague, and kinda fagggy. You an engineer? or just a troll?

>>1213982
No. Greetings from Albert.

>A digression about technology

If you ever think about it all our tech is pretty much built on EM, we have that shit pretty mcuh down. It was the first "pillars" of physics, that actually become completly explained. No new research or experiment is even down on classical EM, hasnt been for at least a hundred years. Its pretty much a "complete" science.