• Science Thread
    325 replies, posted
I like me some of them astrophysics. Lasers are fun too, I have two green 50mw pointers and a 5mw Blu-Ray. Edit: Fun thought; Everything around you that is solid is frozen. Most people don't think about like that. Your desk is frozen.
[QUOTE=Brosi;16369673]Oh shit fucking mythbusters lied to me they did Please ignore me science gods i am but an ignorant fool[/QUOTE] It's true, you can superheat water, where it will not boil even though it's hot enough. It's when there is lack of nucleation sites (which impurities in the water or marks/roughness in the container cause) which bubbles can form off. But if water is superheated, it [I]will[/I] boil if it's disturbed. Supposedly, the more pure water is, the closer to 100 C it will boil. Where superheating comes into this, I'm not sure.
[QUOTE=mike;16239545]chemistry science.[/QUOTE] Computer science ftw.
[QUOTE=evlbzltyr;16369918]It just started raining here. Can someone do some science in such a way that it doesn't rain here anymore?[/QUOTE] I can make it rain [I]more[/I] by seeding it with Silver Iodide... [url]http://en.wikipedia.org/wiki/Cloud_seeding[/url] :science:
[QUOTE=aVoN;16372026]They are very cold and a majority of the bosonic atoms is in the same physical state - The ground state. This allows for example ultra-precises interferometry. And because of the atoms being all in the same quantum state, you have a quantum-system in macroscopic size: You can see a BEC. [editline]03:25PM[/editline] In a more complete way: It annihilates to light and neutrinos.[/QUOTE] Would the annihilation to light be like an explosion then?
[QUOTE=Beafman;16373350]Would the annihilation to light be like an explosion then?[/QUOTE] Yeah it would. The light would heat the surrounding air to a huge temperature, which itself will explode. This would create the fireball/mushroom cloud. It would be very similar to a nuclear explosion, because nuclear fusion is the same principle of antimatter annihilation; turning mass into energy. The difference is, with fusion only a tiny fraction of the mass is turned into energy (known as the binding energy.) With an antimatter annihilation, 100% of the mass turns into energy (only 50% will contribute to the explosion as neutrinos hardly interact.) So essentially they're the same principle, just the antimatter is much more efficient.
How do I: Homemade solar cell? All I could figure out is making a good one involves complex chemistry. So the simplest way could be getting two sheets of copper, placing them very close to eachother, and attach a diode the right way, so charge would build up no matter how long are the wires. Would it work? Is there a better way? Not to power my house of course, I'm not dumb enough to think anything homemade would have that kind of power :P
I'm not sure if you can make a solar cell that easy, but you can make a solar heater with cans and black paint.
Astronomy is a cool science and this book is really good! [url]http://www.amazon.co.uk/Death-Skies-These-World-End/dp/0670019976/ref=sr_1_1?ie=UTF8&qid=1249069322&sr=8-1[/url]
[QUOTE=Revo;16398068]Astronomy is a cool science and this book is really good! [url]http://www.amazon.co.uk/Death-Skies-These-World-End/dp/0670019976/ref=sr_1_1?ie=UTF8&qid=1249069322&sr=8-1[/url][/QUOTE] Astronomy is for sheeps astrology is where it's at. [img]http://www.cnesbau-export.com/images/ASTROLOGY.jpg[/img] That's some trippy shit.
[QUOTE=Revo;16398068]Astronomy is a cool science and this book is really good! [url]http://www.amazon.co.uk/Death-Skies-These-World-End/dp/0670019976/ref=sr_1_1?ie=UTF8&qid=1249069322&sr=8-1[/url][/QUOTE] I've got that book. Scary shit.
my worst subject is science. but it's kinda interesting.
it's a scientific fact that my balls are biggest, oh yes
Einstein is my homeboy.
Schrödinger's cat and all that jazz.
my favourite science is physics. i'm taking it at a level along with pyschology.
[QUOTE=Anthrax713;16406378]my favourite science is physics. i'm taking it at a level along with pyschology.[/QUOTE] Same as mine, Biology bored me, i can learn much more in physics classes than in biology.
[QUOTE=Brosi;16367656]I have a science question for the science nerds of the science thread. Its pretty sciency. I want to know how they accurately measure temperature. In the CELSIUS system, 0 degrees is based on when water freezes, and 100 degrees is when water boils. However, water only boils because of its impurities, distilled water can't boil. So when they established the measuring system, what was the amount of impurities in the control water? Did they even know then, or did they just use any left over piss? Because as far as I know this could effect the whole temperature system with inaccuracy, and I'm pretty sure there are some experiments that need National Socialisticly accurate measurements. SO WHAT DID THEY DOOOOO?[/QUOTE] Distilled water actually boils closer to the 100 degrees celsius at sea level than water with impurities in it.
[QUOTE=Squad;16406492]Distilled water actually boils closer to the 100 degrees celsius at sea level than water with impurities in it.[/QUOTE] This is true!
[QUOTE=Neolithic v7;16398139]Astronomy is for sheeps astrology is where it's at. [img]http://www.cnesbau-export.com/images/ASTROLOGY.jpg[/img] That's some trippy shit.[/QUOTE] Hehehe imma tauras I can not for the life of me make constellations look like there intended animal/being Maybe videogames and TV has destroyed my creativity
[URL=http://img185.imageshack.us/i/portal2lg0520878.jpg/][IMG]http://img185.imageshack.us/img185/7991/portal2lg0520878.th.jpg[/IMG][/URL] this is my favorite type of science.
Dear scientists: What is the best option to power an anthropoid robot? I'm just sitting here drawing one. I'm thinking a small flywheel energy storage is the most dense batteries today. The power supply shouldn't take up too much of a ribcage, because I'm thinking of having all limbs pneumatically activated, so some room would be needed for pumps and the like. Also. Is it possible to have unbalanced human-like walking gait, that is self-adjusting through some simple formula, instead of all the fancy stuff like self-learning and neural nets? Does veloceraptor-centaurus robot make any sense?
[QUOTE=Nikita;17559313]Dear scientists: What is the best option to power an anthropoid robot? I'm just sitting here drawing one. I'm thinking a small flywheel energy storage is the most dense batteries today. The power supply shouldn't take up too much of a ribcage, because I'm thinking of having all limbs pneumatically activated, so some room would be needed for pumps and the like. Also. Is it possible to have unbalanced human-like walking gait, that is self-adjusting through some simple formula, instead of all the fancy stuff like self-learning and neural nets? Does veloceraptor-centaurus robot make any sense?[/QUOTE] In short, no.
[media]http://www.youtube.com/watch?v=49nesMuk6pE&feature=related[/media]
[QUOTE=petieng;16372608]It's true, you can superheat water, where it will not boil even though it's hot enough. It's when there is lack of nucleation sites (which impurities in the water or marks/roughness in the container cause) which bubbles can form off. But if water is superheated, it [I]will[/I] boil if it's disturbed. Supposedly, the more pure water is, the closer to 100 C it will boil. Where superheating comes into this, I'm not sure.[/QUOTE] Yeah, that's boiling point elevation/freezing point depression. The more stuff dissolved in the water, the lower the freezing point and the higher the boiling point is. It's the same reason why putting salt in water makes it freeze at a lower temperature. Or why it's good to put antifreeze in your car in the summer as well as the winter, it lowers the boiling point of the water cooling your car. But I have no idea what it has to do with superheating either :v:
Why is Geo-centrism no longer in effect
[QUOTE=Louie XVI;17560945]Why is Geo-centrism no longer in effect[/QUOTE] It's not true.
[QUOTE=Kyle902;17560511][media]http://www.youtube.com/watch?v=49nesMuk6pE&feature=related[/media][/QUOTE] Page 1
Science ==/== Religion
I know science! There is another earth behind the sun and light has no weight at all!
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