/sci/ - Science & Math

How miniaturizable are nuclear reactors? Specifically, for the purpose of mounting on vehicles. Is there any chance of seeing onboard power generation in electric cars?

Has anyone discovered a simple step by step procedure for converting the limits of triple integrals from rectangular/cylindrical/spherical?

It seems that every method that exist involves some sort of mental projection.

>>6138556
Opticbooms are awesome!

Can we get some good math and science jokes up in here /sci/?

>>5666008
>a vast, abundant energy supply

>>5080362

Well, fuck, that image is disgusting.
Have this one.

Hey /sci/ I need some help figuring something out. I suck at it.

Alright, I'm looking for information about pressure. Specifically water pressure deep in the ocean. Everywhere I've been reading has only information about shallow water stuff, but I'm looking for deep water pressure. Anyways, here goes a few questions. I'm mostly just looking for best guesses here.

1. Like in the movie the Abyss, they use a Moon pool to launch submarines. Whats the deepest a moon pool could theoretically be used? I hear that in order for them to work, the air pressure has to match the pressure of the water.

2. What would happen to a ship. Say a navy battleship if it sank into a trench?

3. Assuming the materials could withstand it. In question 1, if it isnt possible, would it be possible to create a flooded airlock big enough for a submarine and then pressurize it to that depth? Would humans be able to survive this process without needed to decompress every trip?

>>4529811
What's scientific about solid blue? Are you aiming for a Cherenkov look?

>>4424313
>For energy density
hahahahahahhahahha. Yes, uranium is well known for its poor energy density.

>cheapness and practicality, it beats every other energy source, EVER. And that includes nuclear sources.
Coal can be used to produce liquid fuels cheaply, this is not in wide use as oil as been <$40 in the very recent past(2009). Longer term, hydrogen from fission power can be used to produce liquid fuels by a similar process. Further, battery tech has increased markable, practical electric cars(personal transportation being the majority user of oil) are close at hand.

>Once the petroleum runs truly dry, billions will have to die
Holy Christ you're dim. Oil plateaus, oil increases in price, people move away from oil. Shits not rocket science.

>nuclear and other weird hydrocarbon deposits just can't replace those delivery infrastructures
Any liquid or gaseous fuel could make use of existing fossil fuel infrastructure.

Cry moar, petite commie.

>1) How long will oil last? Tell me your estimate, or which available estimate is closest to the truth.
Oil will last forever, it will just because cost prohibitive to use for most purposes.
>2) How can industires reduce their reliance on oil? Can they, indeed? What long-term changes in economy and society will this have?
Switch to cheaper alternatives as the price rises.
>3) Is there a valid substitute for oil, not only in terms of energy production, but also as a chemical compound?
Fission.
>4) After the "Age of Oil" what will be next?
Fission.
>5) Will the standard of living in industrial societies increase, decrease or remain at the same level? Why?
Increase, provided the State doesn't smother the Market.

>>4376674
Well good night everyone. I hope my posts were somewhat educational or informative. I would post more but it is late and I have a bunch of school work. If anyone is still interested you should check out www.energyfromthorium.com. Watch the video lectures about an alternative reactor design known as the LFTR (Liquid Flouride Thorium Reactor). It is the future. Hopefully we can have more threads like this in the future. Thanks and good night.

>>3312069

no, but certain types of high energy particles can travel faster than the speed of light IN A SPECIFIC MEDIUM (though, not faster than the speed of light in the vacuum).


this produces Cherenkov Radiation.

Hello /sc/ientists.

I got a couple of questions regarding Hydrogen and Heavy water:

1: Is there an heavier form of Hydrogen then Tri-Lithium?

2: Heavy water is normal water but with Deuterium added that weights it down. Is it save to consume (drinking) heavy water? Is it possible to have your entire body filled up with Heavy water instead of regular water?

I do hope for some good reactions.

This is what happens when you break the lightspeed barrier.

>>2814754
Too late for what?
Also, look at small scale fusion projects, things like ITER is just a waste of money, what will suceed is the pulsed smallscale reactors.

Oh, and did someone say cherenkov radiation? It's beautiful!!

just remember: blue = bad

>>2336893
Actually, no. I general, light moves more slowly through materials because it is occasionally absorbed, held for a bit, and re-emitted as a photon. This average light propagation speed CAN be surpassed by physical objects - by not the speed of light in vacuum.

Want to know what happens when you do it?
http://en.wikipedia.org/wiki/Cherenkov_radiation

I've seen it. It's pretty.

Cherenkov radiation.

If nothing can move faster than C, explain Chernekov radiation.