• Science Thread
    325 replies, posted
Damn I never thought we would get a picture good enough to see the flag. I suppose those are the lunar rovers tracks as well? Looks like the area around the flag and lander is darker, footprints perhaps?
[QUOTE=OvB;18193949]Damn I never thought we would get a picture good enough to see the flag. I suppose those are the lunar rovers tracks as well? Looks like the area around the flag and lander is darker, footprints perhaps?[/QUOTE] The large discolored area is most likely disturbed lunar soil from when the retrorockets were fired during landing procedures, and from when the return stage rocket fired, combined with disturbed soil from the EVA.
[QUOTE=OvB;18193949]Damn I never thought we would get a picture good enough to see the flag. I suppose those are the lunar rovers tracks as well? Looks like the area around the flag and lander is darker, footprints perhaps?[/QUOTE] Yeah the darker area's probably footprints an other disturbances of the soil. There's a picture of Apollo 14 that clearly shows the footprints: [img]http://www.cubeupload.com/files/de6400369228mainap14label.jpg[/img]
[QUOTE=Nikita;18192085]Huh Suddenly, my post is gone. Anyway, thanks aVoN, now I understand what a capacitor does there. But I'm pretty confused at why is it where you've put it. Would it be ok to put it in parallel with just the headphones?[/QUOTE] It might also be ok, but I suggest putting it before the transistor. Also, you need a smaller capacity if you do it that way.
I'm going to put my quantum harmonizer in your photonic resonation chamber
Noone sells solenoids or magnetic cores around sheffield. Pfft.
[QUOTE=Super_Poo;18199608]I'm going to put my quantum harmonizer in your photonic resonation chamber[/QUOTE] My dick is like the radioactive half life of SE-82. Too long to be accurately measured :smug:
[img]http://www.thepaincomics.com/Science%20vs.%20Religion.jpg[/img] bam
Yes science is Cool,So many types and Things you can do with it.
Earth science! Igneous rock anyone?!
[QUOTE=petieng;18260321]My dick is like the radioactive half life of SE-82. Too long to be accurately measured :smug:[/QUOTE] My dick is like nuclear waste. Avoid at all cost.
my friend does earth sciences or geoscience or something along those lines at oxford. it sounds riveting
currently studying for my science final exam
[QUOTE=DrPompo;18333650]currently studying for my science final exam[/QUOTE] currently toasting a bagel
Oh hey a mechanics question! How do I mechanically multiply two angles? I know I can invert or multiply by a constant using simply 2 gears of possibly different ratios, and that I can add and subtract angles using a differential mechanism, but how do I multiply two arbitrary angles? 360 degrees equals 10 units. I'm interested in the differential engine and other mechanical calculators so I thought why not make one in gmod :D
[QUOTE=Nikita;20042581]Oh hey a mechanics question! How do I mechanically multiply two angles? I know I can invert or multiply by a constant using simply 2 gears of possibly different ratios, and that I can add and subtract angles using a differential mechanism, but how do I multiply two arbitrary angles? 360 degrees equals 10 units. I'm interested in the differential engine and other mechanical calculators so I thought why not make one in gmod :D[/QUOTE] Bumpery bump... Oh well when it's back. [B][I]PALAEOICTHTYOLOGY is :science:[/I][/B] [URL=http://www.cubeupload.com][IMG]http://www.cubeupload.com/files/a0e200stethacanthusbw.jpg[/IMG][/URL] It's awesome!
:science:
I need some help here. When water goes from ice to liquid form, it takes more energy than it would if it was liquid water just getting warmer, right? You can add energy, and instead of the water simply getting warmer, the energy is used to melt the ice.
Yes, during the transition the energy is used to break the bonds rather than just increase the kinetic energy of the molecules.
Thanks :)
Another question: Why does a cup water cool down faster if it's in water than in air?
[QUOTE=sp00ks;22631104]Another question: Why does a cup water cool down faster if it's in water than in air?[/QUOTE] I'm assuming both the water (not in the cup, around it) and air are the same temperature. It's because water is a lot better conductor of heat. Different materials conduct heat differently. That's why you can survive in a 100C sauna but you'd die quickly in boiling water.
[QUOTE=sp00ks;22631104]Another question: Why does a cup water cool down faster if it's in water than in air?[/QUOTE] It cools down faster because the atoms in water are much more dense and so closer together meaning that atoms impact with the hot water (im assuming its water) and take heat from it faster than when it is in less dense air thus it cools down faster.
[QUOTE=unseendamageUK;22631258]It cools down faster becuase the atoms in water are much more dense and so closer together meaning that atoms impact with the hot water (im assuming its water) and take heat from it faster than when it is in less dense air thus it cools down faster.[/QUOTE] I'm pretty sure that thermal conductivity doesn't always follow density like that. It's more complex.
[QUOTE=Block;22631418]I'm pretty sure that thermal conductivity doesn't always follow density like that. It's more complex.[/QUOTE] I know, but it also follows initial temperature diffrence and atomic mass, but it works very similarly to that
It's a very basic physics class, so I don't need to give them a super advanced answer. I guess atom density is a decent answer.
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