Recent content by Space Dragon

I said that because electrons has less mass compared to a positive ion,they react electromagnetically rather than gravitationally(ie.by mass). I may be wrong but i still don't see any plausible explanation to her question. Thanks for correcting me anyways.

Its very hard to freeze a electron.Since electrons are leptons they do not react by mass,that loss of kinetic energy of a substance doesn't stop all electrons.Its because the no of electrons is far greater than the number of positive ions.Hence there is always electromagnetic fluctuations in a...

In superconducting materials electrons form pairs known as cooper pairs.When two electrons move towards a positive ion they tend to reach an equilibrium state and become electrically bonded.These cooper pairs are responsible of electrical conductivity in a superconductor.The movement of these...

Yes,there are no such programs in my country. I have not taken a specific course yet,just the basics of astrophysics and astronomy. Is self learning enough or should i have any certificates to provide for my masters? Are there any exams to prove my eligibility? Thanks.

Physicists have developed a theory called The standard model to explain how particles holds the universe together. The standard model basically includes 6 leptons,6 quarks,Force carrier particles. The quarks are classified as up,down,top,bottom,charm,strange. The leptons are classified as...

How can i take physics courses?,Do you mean like a diploma?

Hello Guys, Im a Indian pursuing BE Mechanical course.I have a 9.1 average physics grade from my 2 semesters and currently in my 3rd sem.My maths grades are also in the range of 9. I want to undergo a Masters degree in astrophysics in US.Can u recommend me a good college and the possibilities of...

Thank you mfb and phinds for your valuable info.

I know dark matter is unaffected by electromagnetism..But shouldn't it interact with gravity and thereby get attracted to the black hole? And dark matter is present everywhere so why isn't direct impact possible?

Then why is dark matter is evenly distributed in galaxies when they should be found more in the centre where a supermassive black hole is believed to exist?

Then does a heavy object with more mass like black holes warp more dark matter towards it?

I read dark matter makes the stars in a galaxy to move about a same orbital velocity. Why isn't this applicable to our solar system?