Latest developments in the world of physics
October 18, 2011 by Actaphysica
Filed under Physics Videos
A dated yet informative video looking at the Fission Process (the video appears to cut short but it seems concise enough). More vids- www.shep.net A blog summary for fission/fusion mass-energy conversion- blog.myspace.com More info- en.wikipedia.org
Video Rating: 4 / 5
![The Dark Matter & Dark Energy [1/5]](http://i.ytimg.com/vi/rLmcbjLVPKc/default.jpg)
The Dark Matter & Dark Energy [1/5]
Nuclear Physics 10: Electrical Energy from Fission
Brian Cox and Leonard Susskind on String Theory
Debunking the Kalam Cosmological Argument of William Lane Craig
Lecture 1 | Modern Physics: Special Relativity (Stanford)
See All
Mathematical Physics Reviews
The Shape of Inner Space: String Theory and the Geometry of the Universe’s Hidden Dimensions
Models.Behaving.Badly: Why Confusing Illusion with Reality Can Lead to Disaster, on Wall Street and in Life
Physics For Scientists & Engineers With Modern Physics
Flatland: A Romance of Many Dimensions (Deluxe Illustrated E-Reader Edition)
See All
part two is missing !!
Great video !! thank you
[Reply]
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.
[Reply]
@rockerlkj Can’t tell if I’m trolling? You must be really stupid.
[Reply]
@Kostly Can’t tell if trolling, or just really stupid…
[Reply]
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.
[Reply]
@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?
[Reply]
@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.
[Reply]
@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?
[Reply]
@PAM2167
235-U and 238-U are both Uranium, 235-U being the fissionable isotope.
On the other hand 239-Pu is plutonium.
[Reply]
@kmherpplrule
they are the decay products of uranium-236 after fission is complete. sometimes lanthanum, molybdenum, krypton or other lighter elements
[Reply]
@PAM2167 No, there is an isotope of Uranium, Uranium-239, which decays into Neptunium-239 and the Neptunium further decays into Plutonium-239.
[Reply]
WHAT IS THE GREEN AND RED ATOMS !?!?!?!?!?
[Reply]
This video has taught me something new:) but isn’t U-239 plutonium?
[Reply]
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
[Reply]
ff to 2:30. it starts here fyi.
[Reply]