kriegkatse (December 31, 1969 at 4:59 pm)

technically it is possible to set up a set of circumstances where you can cause something to travel faster than c, but when you do that no information can be transmitted, c is more accurately the fastest rate at with organized information in a quantum sence can be transmitted, but this sciencetist speeding up photons, if he claimed the went faster than c, he is lying that is purely impossible

kriegkatse (December 31, 1969 at 4:59 pm)

yes, light can be locally slowed lower than c, they have even gotten it done to speeds practically at a standstill using ultradense crystals, and i read recently that they actually managed to reverse its direction by slowing it down to a point, this is physically different from reflection but its hard to explain why, but you can also have particles which travel faster than light in a local medium where light is slower than c, the effect is called cherenkov radiation, its very pretty

rogerpenna (December 31, 1969 at 4:59 pm)

can light really be slown down? I mean... if it passes through a material, it may take longer to get through to the other side, but isnt the speed with which it travels BETWEEN the atoms in the material (refracting in them) C?

LV07TSK (December 31, 1969 at 4:59 pm)

the letter C....as it was explained to me....was assigned because it is the LATIN word for SWIFT.....don't quote me, but i think it is "Celeritas" swiftness, or speed.

tels2006 (December 31, 1969 at 4:59 pm)

They could borrow my wickedly fast skoda to race with the light and picture it coming in second place, but I would;'nt race it to the moon, that would be ridiculous!!!

DannyAces (December 31, 1969 at 4:59 pm)

This may or may not be true - but I heard that German scientists use prisms to increase the speed of photons. It's a bit over my head so google it and again - I'm not sure about it's validity.

AzlyTV (December 31, 1969 at 4:59 pm)

cuz i heard that neutron stars and red shift played a role in the questioning of e=mc^2 im not sure but it was featured in a national geographic video i guessed that i might of herd the info wrong or maybe it was true. But o well.

caranauba (December 31, 1969 at 4:59 pm)

i heard somewhere you could say e=+ or - mc^2

ray123ification (December 31, 1969 at 4:59 pm)

so a sphere could rotate once per second but only up to a diameter of about 60k miles then something forces it to slow down..

AzlyTV (December 31, 1969 at 4:59 pm)

thnx