- #1
KingGambit
- 37
- 27
Today I learned that U 235 is not a German Uboat
U-235 Chain Reaction: Exploring Nuclear Fission
In summary, U-235 was a German U-boat that sank twice during World War II. After being raised and repaired, it was reassigned to a different flotilla before its second sinking. It was not a very successful boat. Additionally, if U-235 had collided with U-233 and U-238, it could have reached critical mass. However, the bomb shown in the video was not based on U-235, but on Pu-239.
- #2
BvU
Science Advisor
Homework Helper
- 15,982
- 4,806
Neither is U2
##\ ##
##\ ##
- #3
Borek
Mentor
- 28,951
- 4,245
Actually U-235 was an U-boat. It sank twice.
- #4
KingGambit
- 37
- 27
Wow, Sir. You are a real historian.Borek said:
- #5
Vanadium 50
Staff Emeritus
Science Advisor
Education Advisor
2023 Award
- 33,299
- 19,817
Story, please? (It was sunk by its own navy, I know.)Borek said:
- #6
Borek
Mentor
- 28,951
- 4,245
Vanadium 50 said:
Just from wiki: After training with the 5th U-boat Flotilla at Kiel, U-235 was transferred to the 22nd flotilla on 29 October 1943, following her sinking in May by US bombs in Kiel. She had been raised, repaired and returned to service. She was reassigned to the 31st U-boat Flotilla on 2 April 1945, less than two weeks before her second sinking.
- #7
BvU
Science Advisor
Homework Helper
- 15,982
- 4,806
- #8
Roberto Teso
- 31
- 29
So if U-235 accidentally collided with U-233 they could have reached critical mass!
And if U-238 had been involved as well this would have become the (P)U-239
And if U-238 had been involved as well this would have become the (P)U-239
- #9
collinsmark
Homework Helper
Gold Member
- 3,385
- 2,636
KingGambit said:
Unfortunately for the video's accuracy sake, the image of the bomb in the video is the Fat Man bomb, which was [itex] ^{239}\mathrm{Pu} [/itex] based (not [itex] ^{235}\mathrm{U} [/itex]).
1. What is a U-235 chain reaction?
A U-235 chain reaction is a process in which the nucleus of a U-235 atom splits into two smaller nuclei, releasing energy and neutrons. These neutrons can then go on to split other U-235 nuclei, creating a chain reaction.
2. How does nuclear fission occur in a U-235 chain reaction?
Nuclear fission in a U-235 chain reaction occurs when a neutron collides with a U-235 nucleus, causing it to become unstable and split into two smaller nuclei. This process also releases additional neutrons, which can go on to split other U-235 nuclei, creating a chain reaction.
3. What are the potential dangers of a U-235 chain reaction?
The potential dangers of a U-235 chain reaction include the release of large amounts of energy, which can lead to explosions and radiation exposure. If not properly controlled, a U-235 chain reaction can also result in a nuclear meltdown.
4. How is a U-235 chain reaction controlled?
A U-235 chain reaction is controlled through the use of control rods, which absorb excess neutrons and slow down the reaction. The amount of control rods inserted into the reactor can be adjusted to regulate the rate of the chain reaction.
5. What are the practical applications of a U-235 chain reaction?
The practical applications of a U-235 chain reaction include the generation of electricity in nuclear power plants and the production of nuclear weapons. It can also be used for medical purposes, such as cancer treatment through radiation therapy.
Similar threads
-
High Energy, Nuclear, Particle Physics
-
Nuclear Engineering
-
High Energy, Nuclear, Particle Physics
-
Nuclear Engineering
-
Nuclear Engineering
-
High Energy, Nuclear, Particle Physics
-
Introductory Physics Homework Help
-
Introductory Physics Homework Help
-
Introductory Physics Homework Help
-
Nuclear Engineering