virgo

I have some questions about relativity (stupid lazy me not like to read books to get anwers) Lets imagine a space with only 2 bodies that have mass (spaceships with people inside). Both spaceships have same mass and stand still. Now spaceship 2 accelerates to the 0,5c speed. Who is getting older faster and why (SS1 pilot or SS2 pilot)? How to define, who is accelerating and who standing still? Lets imagine the SS2 accelerates to 0,5c, then brakes to 0c and then comes back same way and it all takes one year for SS2. Does it take 1 year for SS1 to wait for SS2 return? If not, why? Now lets imagine Earth and spaceship the same way. Earth standing still and SS accelerates. People in SS see Earth accelerating. SS goes to 0.5c, brakes to 0c and comes back the same way. Are people in SS getting older slower? If yes, is this cause the mass? Tell, me why not to think that Earth accelerates and people there getting older slower?

I think plants can use wide spectrum of light, except the area near green. Thats why they reflect it (most of the living plants are green).

Ok, may be you are right, but i dont SEE it

In 1995, the CERN laboratory in Geneva first produced antihydrogen in the LEAR by shooting antiprotons, which were produced in a particle accelerator, at xenon clusters. Annihilation is defined as "total destruction" or "complete obliteration" of an object having its root in the Latin nihil (nothing). A literal translation is "to make into nothing". Annihilation is the opposite of exnihilation, which means "to create something out of nothing". Penning traps are devices for the storage of charged particles using a constant static magnetic field and a spatially inhomogeneous static electric field. This kind of trap is particularly well suited to precision measurements of properties of ions and stable subatomic particles which have electric charge. copy-paste from wikipedia I have never seen any antimatter myself. Else i would be dead i think.

What exactly produces thermal radiation? I have learned, that if atoms move faster, they radiate higher frequency electromagnetic wave. But how can electrically neutral atoms produce EM wave, if EM waves are produced by moving charged particles? I know when electron drops from higher orbital to lower, it radiates a photon, but isnt that exact spectrum? Does atom higher speed just increases chance that it will have an electron change orbital? Are these wide spectrum EM waves are produced cause electrons are never separated around the atom evenly? Or when atom changes its direction, the massive nucleus moves more to one side of the atom and separates the charges for a moment? Is every moving particle in atom radiating EM waves all the time? (i dont think so) Is every moving atom radiating EM waves or only when the charges get separated and make a dipole?

Hi, im 23 years old, i come from Europe, i like electronics and physics. Im sure i can learn alot from all of you. ...and one day i get the Nobel prize ...for something ...in some dimension May be in this one too P.S. my english is not perfect