Recent content by TheEtherWind

I forgot to mention. After the lotto selects one number they won't select it again for that draw.

At least I'm educating myself before playing the lotto, right? There's a game in Georgia called "Keno!" and they do an awfully good job at hiding probabilities from you. They'll tell the overall chance to win, but not the probabilities for the specific higher winnings possible. Basically it...

Common misconception: Everything does not necessarily travel at the speed of light. Everything's proper velocity's magnitude is c (under only the influence of gravity? I think). E=mc^2 wasn't a guess. It was derived by a thought experiment of Einstein's and described in his paper "Does the...

How about a1(t)=GM/[x1(t)-x2(t)]^2 a2(t)=-GM/[x1(t)-x2(t)]^2 These are the differential equation explaining two objects falling toward each other. In a straight path of course. Edit: And of course assuming Newtonian gravity suffices as an approximation.

The gravitational influence from one would reach the other. Using Einstein's velocity addition formula. You'd see that in one objects reference frame the other would be traveling away at less than the speed of light.

If you can solve for x in this type of equation in elementary functions, ln(f(x)) + g(x) = t let me know

Does anyone know the equation that Hawking came up with? It related entropy to area of the event horizon, Plancks constant, the speed of light, and Newton's gravitational constant. I've seen it before, just can't remember it.

Actually the equation x''=-k/x^2 yields an x function that can't be written in terms of elementary functions.

Thanks for the replies. And L-methylfolate is another name for levomefolic acid, which, if I'm not mistaken, is an active form of folic acid. In context to why I'm interested in the subject, my psychiatrist did a genetic test on me to find that whatever the two genes are, I have a heterozygous...

Does anyone have any references for me with good information on the genes (don't even know their names) responsible for the synthesizing of L'methyl folate from folic acids. Also I'd like to learn about the effects of L'methyl folate on the production of dopamine, serotonin and norepinephrine. I...

Perhaps a couple layers of aluminum foil followed by paper would be a good way to decelerate the egg and stop it. Just a suggestion

Don't believe anything about relativity from someone who doesn't at least have a physics bachelors...

The sign is solely due to the choice of coordinates. Here's a site that derives it as positive: http://www.nws.noaa.gov/om/wind/deriv.shtml

It doesn't seem completely unsolveable. I've done similar problems. Let's see what equations we can set up... forces in y direction (equal to 0), forces in x direction (also 0), balancing of torques (also 0) and maybe some trig equations: addition of angles and the law of cosines *could*...

Perhaps sunfire is referring to the 'norm of all velocities' as the magnitude of the four velocity.