[Zoo]

black holes would be the most dense

[Neraphym]

No, no, no!!! When there is X amount of matter in a star when it dies, it becomes a white dwarf. White dwarfs do not excede a certain mass, or the gravity would excede a certain pressure and it'd form a neutron star. Neutrons have a similar mass limit before it excedes another pressure and collapses into a black hole. What are these two pressures?

[Ratty]

Peer and Air.

[Nuu™™]

I think it is, in fact, Peer and Moral.

[Ratty]

I think it is, in fact, Peer and Moral.

Damn you. I couldnt think of another good one

[Rylkan]

Nuetron Degeneracy Pressure. Though, may be better to ask what keeps it from being a quark star, if they exist.

[Neraphym]

Well, that's one of them. There's also electron degeneracy pressure. Also, scientists are fairly sure that there are no more pressures beyond neutron degeneracy pressure, so neutron stars go straight into black holes when that pressure is exceeded.

[Rylkan]

There is no electron degeneracy pressure in a neutron star, thats a white dwarf.

And yeah, there is alot of debate about quark stars. I don't know how much of it I buy. I want to go into particle astro physics most likely, so I can see the argument, but no real proof yet to make me believe it or not.

[Neraphym]

I guess you didn't even read the question. Anywho, it's your turn to ask.

[Rylkan]

Actually, I did, but I read it between classes, so I did forget the full thing. My fault.

In terms of the actual waves, what is the difference between AM and FM. Like how do they create each.

[Zoo]

Uhh.. well, I know AM is amplitude modulation and FM is frequency, so for the former they mess with wave height, and the latter how many waves per unit of time. I dunno anything more than that .

[Goto]

That's probably what he was after, beat me to it.

Just in case he's after more information though... I'm a bit rusty on this, but I believe a carrier wave is modulated to represent changes in the signal, which contains the information being transmitted. As Zoo said, AM modulates the amplitude of the signal to represent information (the 'strength' of the signal), while keeping the frequency constant. FM does the opposite, the frequency changes in relation to the information being sent while the amplitude of the signal remains constant. So yeah, the data signal is superimposed over a carrier signal, causing either a variable amplitude or frequency for the resulting wave.

The question should go to Zoo though, I think.

[Rylkan]

Yep yep, she said what I was looking for.

[Zoo]

*cough*she*cough*

Where does the poison secreted by poison dart frogs come from?

[Rylkan]

Sorry about that, though I defend myself using a rule of the internet, There are no girls on the internet. :-p *Fixed my mistake though, so I apologize.

As for the answer, I remember reading it before but had to look it up again to make sure. "Batrachotoxin is a steroidal alkaloid secreted from skin glands and is deadly to other small animals." Basically a poison that effects the muscles and causes muscles to breakdown and to make things like the lungs stop working. But as for the question you asked, from glands within the frogs skin.