what is the mechanism?how can it be real?if the light is energy.how can we change our body to energy?
2006-07-20 01:50:10 · 11 answers · asked by Ashton 2 in Science & Mathematics ➔ Physics
OK here's the math everyone has been talking about. In special relativity, there is something called relativistic mass and rest mass. E=mc^2 is the formula for calculating the rest mass. Now if you want to know what the energy of a massive particle moving is then you have to use a Lorentz conversion factor which makes the formula become. E=mc^2/sqrt(1-(v/c)^2) so mc^2 over square root of 1 minus v (your speed) over the speed of light and this ratio squared. So let's say you're going at .6c which if 60% of the speed of light. then v^2 = .36c^2 . This divided by c^2 will simply give .36.... 1-.36 is .64 and the square root is .8 Now you take your initial mass, let's say 100kg. Then youre relativistic mass will be 100/.8 = 125kg . It is easy to see that as you go to c, your mass goes to infinity and therefore takes an infinite amount of energy to go to that speed. Therefore if special relativity is correct, then it is so far impossible to do this... Hope the math clarified this a bit for everyone.
2006-07-20 03:02:04 · answer #1 · answered by jerryjon02 2 · 1⤊ 0⤋
There are alot of misconceptions of Einstein's Theory of Special Relativity...Einstein said that the energy cost of accelerating to the speed of light would be tremendous! If you want to have a clue how unthinkable the amount of energy would be...that's what the famous theory is for E=mc^2...so if you want to know the energy cost to accelerate just 3 grams to the speed of light you would multiply 3 grams time's the speed of light squared. The speed of light is 670,616,629.384 mph...now you have to multiply that times itself and then multiply that times three grams...that's roughly the amount of energy that it will take to accelerate 3 grams to the speed of light. I believe it's actually a little more complicated than that and someone with more math experience can explain it better. So that sounds like we could never ever do it...BUT according to Einstein...we SHOULD be able to cheat it. A physicist named Miguel Alcubierre used Einstein's equations to theorize that space could be "warped" in such a way that it would creat a kind of wave of physical space. The space craft would actually be moving. It would just be riding this wave until the destination came to it. In a sense it would be like a tug of war between point a and point B...remember freshmen geometry? The quickest way between two points is a straight line? Not according to Einstein...the quickest way to get from Point A to Point B is to bend Point B over Point A and then create a wormhole so that in effect they become the same point.
2006-07-20 09:42:26 · answer #2 · answered by Dustin S 2 · 0⤊ 0⤋
we can't
if u travelled with the speed of light, u will change into a photon (energy) & that is impossible to happen
if u travelled with the speed of light, u will have NO rest mass & that is impossible too for the human body
2006-07-20 10:18:52 · answer #3 · answered by Kevin 5 · 0⤊ 0⤋
No one can travel at the speed of light and expect to live. as per Einstien's theory of relativity. As a body approaches speed of light its mass tends to zero. We can not change our body to energy.
2006-07-20 08:58:14 · answer #4 · answered by openpsychy 6 · 0⤊ 0⤋
According to Einstein, it's not possible, since Energy=mass times the speed of light squared. We would have to have so much energy to power even a small amount of mass that we couldn't do it.
2006-07-20 09:01:21 · answer #5 · answered by cross-stitch kelly 7 · 0⤊ 0⤋
We travel with time, light travels through time therefore to travel with light it would require us to travel in it. Long story cut short, energy enters the body with the first beat of our heart, and the energy expires with the last beat of our hearts and that energy becomes part of all other energy to travel in time with time and through time.
Well, that's my opinion
2006-07-20 09:01:44 · answer #6 · answered by WW 5 · 0⤊ 0⤋
according to relativity we cant travel at light speed, i think Ive read that our body mass wouldn't be able to withstand the pressure from the g forces??? matter does change to energy but monday mornings prove we're eons from turning ourselves to energy. peace and good luck-:)
Vin
2006-07-20 08:59:43 · answer #7 · answered by Anonymous · 0⤊ 0⤋
according to the theory of relativity, it can't be done. We could probably get close, but never get to it.
This means that untill the theory of relativity is proven wrong, we won't go faster than light... until it's proven wrong!
but, honestly, i don't think it's ever going to be proven wrong... so, forget about traveling at the speed of light.
2006-07-20 09:27:42 · answer #8 · answered by Anonymous · 0⤊ 0⤋
well to travel with the speed of light .. it is not possible.. AT ANY COST
2006-07-20 09:07:05 · answer #9 · answered by Answerer 3 · 0⤊ 0⤋
we can't travel with light speed. for that we should have negligible mass which is almost impossible
2006-07-20 08:54:50 · answer #10 · answered by lukkachuppi 2 · 0⤊ 0⤋