Nuclear Physics 10: Electrical Energy from Fission

[1959bts]

Yes! Plain English! Despite weird stuff, I like youtube. I am of average intelligence -maybe- and found this palatable to my curiosity. Thank you stevebd1! plus thanks for the link.

[alfrismar]

part two is missing !!

Great video !! thank you

[mooninquirer]

I like the fact that it is NOT claimed that it will EXPLODE, and enough information is given here for people to realize that a "critical mass" of U 235 will NOT explode, since only slow neutrons can cause a fission, and only fast neutrons are released as products of fission.

[Kostly]

HAHAHAH....when does this video mention it is pure insanity to use fission to generate STEAM to turn turbines? I mean, really? Are we so blinded by science to understand that this is an insane way to generate energy (heat)? Fucking crazy. Meanwhile, the monied interests reject solar, wind, tidal and geo-thermal means to generate the SAME heat. Humanity is in serious trouble. The only way out is to remove the monied interests.The pirates of consciousness and humanity.Find them and killem.

[rockerlkj]

@Kostly Can't tell if trolling, or just really stupid...

[Kostly]

@rockerlkj Can't tell if I'm trolling? You must be really stupid.

[kmherpplrule]

WHAT IS THE GREEN AND RED ATOMS !?!?!?!?!?

[muhammadyousuf1]

@kmherpplrule

they are the decay products of uranium-236 after fission is complete. sometimes lanthanum, molybdenum, krypton or other lighter elements

[PAM2167]

This video has taught me something new:) but isn't U-239 plutonium?

[atomicboy345]

@PAM2167 No, there is an isotope of Uranium, Uranium-239, which decays into Neptunium-239 and the Neptunium further decays into Plutonium-239.

[jamybrainy]

@PAM2167

235-U and 238-U are both Uranium, 235-U being the fissionable isotope.

On the other hand 239-Pu is plutonium.

[SpaceTime4D]

@jamybrainy Like in the movie, when a uranium-238 absorbs a neutrons, it becomes uranium-239. Uranium-239 has a half-life nigh higher than 20 minutes, and decays into neptunium-239 via beta decay. Neptunium-239 also quickly decays via beta decay into plutonium-239.

[eacao]

3:09 is what I'd say is the biggest problem of nuclear fission. besides that single thing i think that fission is a great way to generate energy. the problem is what to do with U239

[SpaceTime4D]

@eacao Uranium-239 is incredibly unstable, lasting about 20 minutes before it decays into neptunium-239. That lasts for about a couple days (literally), before decaying into the long-lived, fissile plutonium-239.

The main problem is what to do with the uranium-236. When the U-235 atom is hit with a neutron, there is some 18% chance it remains stable and doesn't fission, and just absorbs the new neutron. U-236 is basically very long-lived nuclear waste, lasting millions of years. What to do?

[PVanderston]

ff to 2:30. it starts here fyi.

[wefiyhigh56]

Deuterium is a naturally occurring isotope of hydrogen and as such is universally available. The large mass ratio of the hydrogen isotopes makes the separation rather easy compared to the difficult uranium enrichment process. Tritium is also an isotope of hydrogen, but it occurs naturally in only negligible amounts due to its radioactive half-life of 12.32 years.

[poberai]

I NEED MORE...

[SteveTheCart]

Einstein's equatin also applies to any system which stores energy. A spring has more mass when compressed. It doesn't only apply to the nucleus.

[ActiveStorage]

"Einstein's equatin also applies to any system which stores energy. A spring has more mass when compressed. It doesn't only apply to the nucleus."

and how do u explain that?

[SteveTheCart]

I don't know what the explanation is. It's apparent from the equation and I don't think the explanation is very dificult to understand. I used to think that only nuclear reactions converted mass into energy but all systems do.

[ActiveStorage]

i know that all systems do. but not all systems change their mass for no reason )

[ActiveStorage]

my guess that spring dont convert mass into energy

[SteveTheCart]

Later on in the same WikiPedia article it makes the point that development of nuclear energy would have occurred without the knowledge of Einstein's formula and that the fission reaction is explainable without any reference to relativity. Einstein's idea's are no more relavant to fission than to clocks or engines. Yet the two are often discussed together which tends to make the fission process look more mysterious than it actually is.

[SteveTheCart]

There is somethig strange in the way YouTube is handling my replies to you.

[MatskiUchiha]

it was LIse meitner who discovered the fission and splitting

[rumble11]

hell that's good

[U235Man]

Very cool video! Thanks! Excellent explanations in plain english.

[rumble11]

why i wanted part 2 really

[borris79]

have we got a part 2??? i enjoyed that thanks ;~}

[stevebd1]

Unfortunately that's all there is on that one.

[SpaceTime4D]

@stevebd1 You mean, that's all of it? Nothing more was produced? That's kind of weird, there wasn't the typical ending music, and the ending seemed very abrupt. Are you sure?