ok, i have this friend who has convinced himslef that we CAN go the spped of light... the two concepts behind his theory are: 1) if we get a "fastly renewable fuel source" we can go the speed of light because we will then be able to overcome the FRICTION that prevents us from achiving the speed of light (im going to call it 'c' from now on) and 2) infinty doesnt exist, there is no such thing...

this is my argument:

according to Einstein: m = M / sqrt ( 1 - (v^2 / c^2) ) where c = the speed of light, v = the speed you want to go, M = your initial mass, and m = your final mass...

now if you want to go the speed of light, then v = c, therefore the equation becomes: m = M / sqrt ( 1 - (c^2 / c^2) )

now anything divided by itself equals 1, so the equation becomes: m = M / sqrt ( 1 - 1 )

simplify it, and it becomes m = M / 0

now having a zero in the denomenator can mean one of two things, either the answer is undifined, or the answer is infinity... take your pick...

therefore, as you approach the speed of light your mass approaches infinity, and you would therefore need an infinite amount, or non-existent amount of energy to achive the speed of light, or else you would need to be massless... both of which are impossible, hance why we cannot go the speed of light...

i have tried explaining this to him many ways, but he still thinks i am wrong... can anyone help me explain this in another way???

i guess i just want someone to confirm what i am saying because he seems to think i am making stuff up... and needless to say, this is really pissing me off...

heres the transcript of our little chat, i changed the names, but thats it: http://eliteguardians.ssxh.net/speedOfLightArguement.txt