thedarkshade

Heard of twin paradox?

Well in ideal conditions the things behave different, but so far I have not heard of a fuel whose released energy has been used 100%, not even close! I mean, in some countries of the world (many) coal is used as a fuel to produce electricity, But only 20% of the energy that coal releases is used to produce electricity while the rest is wasted (goes into heat and other stuff) and yet the pollution that this method of producing electricity causes is very dangerous! But the reason that they use coal, is because coal is "cheap dirt"! If you use 100% of the energy released from any fuel (which is impossible), there is no reason why the efficiency would be 70%. But using 100% of the energy released from any kind of fuel is something that so far has not happened yet!

Lime rock ([ce]CaCO3[/ce]) would be fine! First you heat it and the results are as the following equation: [ce] CaCO3 + Temp -> CaO + CO2 [/ce] but you must be careful to get all the [ce]CO2[/ce] out because the reaction is reversible so you might get [ce]CaCO3[/ce] again. When you have got CaO, just throw it on the water, the reaction that will take place is exothermic and you will get [ce]Ca(OH)2[/ce] dissolved in water!

I don't think so! If he were arabic he'd probably have a beard and short hairs (due to religion)! He's probably Jewish!

I think that the equation looks like this: [ce] 2NaHCO3 -> CO2 + Na2CO3 + H2O [/ce] this is part of the Solvay process of getting [ce]Na2CO3[/ce]

Well, according to this creationists say that the fundamental laws have not changed! So if the speed of light is 300000 km/s then I see no reason why creationists would require much faster. Of course, unless they prove it to be so!

Avdulla Alija, he's got quiet a lot of reputation and he's famous for his works in cancer research! You must have heard of him, if not do some search!

In my chemistry classes (which I hardy take now:-() when we had to find the mass when only density was given, we had to multiply the density with the volume of 1[math]dm^3[/math] , and as 1[math]dm^3[/math] is equal to 1000[math]cm^3[/math] that is why I multiplied with 1000! And the grams cancel each other only when finding moles (if I haven't done that then I must have probably missed it) but they do not cancel each other by this formula: [math]m=\rho \times V[/math]! edit: you're right , I put m instead of n. Sorry I didn't do that on purpose, I must have just not paid attention to it! Sorry again!

There is no limit, there are infinite number between 0 and 1!

No , don't worry. And yeah, I guess I've never heard of MWI:doh:

I was just explaining there is actually nothing added, just reaction with elements that are found in air!

I don't really get it and I find it difficult the way you think what "universe" is! I think that your "universes" are actually different frames of reference! And from different frames of reference you might think that you're seeing or feeling things differently, but that actually is only from your frame of reference, because someone else who's not looking things in the way you are, will get different conclusion about what you think you are feeling different from the others. But one thing that is interesting in all this, is that you and the other guy from a different frame, do not contradict each other, you have different conclusion about the same thing, but that both are right depending from your frame of reference. Observers from different frames of reference do not contradict each other! Excuse my rookiness (I'm not even sure that you were talking about this)!

Tritium is very very very rare, it's located in the highest layers of the atmosphere and is created as a result of cosmic rays. It can otherwise be produced from the reaction of two deuteriums, and as a result we get one random H and one tritium. It has a use in nuclear physics, as a fuel for hydrogen bombs!

Yes, there are infinite numbers between any two numbers, there is no number that can be the last number near 1;) !

I don't think you'd be able to produce more work. I mean, to reform gasoline into hydrogen you'd need to spend some energy, and if we calculate that too, I think we'd loose more energy till we get H more than H would give to us! Because just about 20% of the energy that H releases can be used, the other part goes into heat!

Take a look at this ! It's not that easy man!

I'm not sure, but I think it's because of the high electronegative coefficient of F.

Reacts with elements that are found in air! For example, if you burn Mg in air, then Mg reacts with [ce]O2[/ce] (21% in air) and [ce]N2[/ce] (78% in air). Look the equations below: [ce] 2Mg + O2 -> 2MgO [/ce] [ce] 3Mg + N2 -> Mg3N2 [/ce]

If we want to find numbers between 0 and 1, then the list of number is infinite, but it never is 1. A general formula is: [math]a < \frac{a+b}{2} < b [/math] Suppose we want to find numbers between 0 and 1, so we start like this: [math]0 <\frac{0+1}{2} < 1[/math] so we get [math]0 < \frac {1}{2} < 1[/math] .. to find other numbers, we just take the middle part and do the operations according to that formula I posted above. Finding the next number would go like this: [math] \frac{1}{2} < \frac{(\frac{1}{2}+1)}{2} < 1 [/math] so then we get [math] \frac{1}{2} < \frac{3}{4} < 1[/math] .. then to find the next number you take the middle part of this last one and so on.. You can find infinite numbers between any two numbers you want;)!

If you've come here to get help at anything (as long as it is science), then you're in the right place (welcome;) ), this is what we do here!

I found this while browsing into "Physics for Future Presidents" and I thought it could be interesting (at least I found it so:doh:) to this subject. Just check under Energy - Energy and Explosions - Amount of Energy, and you will find a table that contains some interesting data!

Again with this crippled writing Sathish??? If you can't write English properly then you have a reason, but if you're doing this for fun, please stop it man!

This really is not the place to start discussions whether evolutionists or creationists are right! You can post anything as long as it is inside the physics frames! It's not about feeling inferior, is about learning new things. I don't know who said it, but I've once heard this "everyone is smarter than me, because I learn something new from everyone"! I's not about feeling inferior! Even you can experience time different from anyone on earth if you travel fast enough!

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