Fission continued

Further details of the nuclear fission process. How to get over the activation energy hump.

[@XsNiPeRPi3z]

You are one of the greatest people on KZbin. You are an excellent teacher; so good at explaining complex things simply. You have done a lot to aid my GCSEs, and I've no doubt that I will be using your tutoring when I go to A-level. Thanks.

[@matttonkthetank5619]

I love your videos. They are a great refresher. It's been almost a decade since I took these classes and it's nice to polish up on my physics skills. Thank you!

[@Mancheguache]

I'm in no way an expert in any of s this stuff - but tthis series (I'm a failed philosopher in love with knowledge etc.) this series is FANTASTIC! It's like watching truth unfold in front of you. It's logic/science being proved - fucking hard maths just unfolding simply in front of you and I can UNDERSATAND it!! It's like being given access to the DNA of the universe! I'm hooked! Brilliant!! Thank you and well done!

[@satyamkumar567]

Sir please make videos on statistical mechanics 🙏. Lots of respect from India 🇮🇳

[@erikziak1249]

Interesting. I hope you explain also "Xenon poisoning". I always thougjt of it that a specific Xe isotope absorbs a neutron and then decays but at the very end of this video I see that actually 137Xe emits a neutron. This emmite neutron should not "poison" the chain reaction, if anything, it should accelerate it. But it was loong time ago when I was reading this stuff and maybe I do not remember anymore. I am curious about the next video though... Thank you very much for making them, they are great.

[@PaulHigginbothamSr]

What I wish ya'll to do is using exactly these formulae and maths show exactly how Stanely Myer ran his dune buggy on pure water. I expect you could if you wish, you could explain it. Do I expect you to do? No it is too remarkable. He has a dune buggy with no exhaust smell, the people near the running vehicle smelled only stale steam smell, with no exhaust of hydrocarbons. He claimed to use harmonics, and used a harmonic analyzer to find exactly the voltage which maxed the harmonic at that specific time. He never used one of two additional inputs to break the ionic bond of water, but he did use one, that is terehertz light, that is infrared laser but not the additional vibration frequency tuned to the water molecule. But enough energy from somewhere to power his dune buggy down the road. Where did this energy arise?

[@TallgeeseClimbs]

Great video! Can u do a video on Leedskalnin and his theories? Its really interesting

[@brendawilliams8062]

Thankyou.

[@daniellassander]

Thank you very much for the video, i very much enjoy them and i learn much :) i would like to ask you to make a video comparing the different types of decay going on in the different types of reactors we got around the globe, Uranium, Plutonium and ofcourse Thorium (which i think looks very promising but i dont understand how thorium decays very well)

[@erikziak1249]

As I understand it Thorium abrosrbs one neutron, converts it to a proton and becomes 233U, which itself is then fissle. Thorium itself is not fissle. But let us wait for another video, I might be wrong. As said, I was interested in this a few years ago and never actually studiet it (however I did not study anything properly)...

[@northernskies86]

just a question, how do you calculate the activation energy of any nucleus? for example if i want to do a plutonium fission reaction and i don't know the activation energy. is there a formula to use to find it or is it empirical?

[@maitland1007]

Thanks for a great video once again. This video left me with a big question however: You say that a very low energy neutron ends up putting uranium into an excited state of 6 Mev. But if that 6 MeV doesn't come from the neutron, then where does it come from?

[@DrPhysicsA]

It comes from the mass difference which is converted to energy. Its the difference in mass between U235 and U236 as calculated by the Semi Empirical Mass Formula.

[@BalerionFyre]

Did you ever make the video explaining the weird distribution of mass (95 and 140)? I have been reading my nuclear physics book (Krane) and i know it has to do with the shell model but your videos are awesome lol. So your explanation would help!

[@DrPhysicsA]

+Stephen Lovejoy I did make a video on the Shell Model in the playlist on nuclear physics.

[@Invaderzerg]

Very interesting. But as other commentators, I'd like to see what happens to the U-233 as it fissions.

[@surem8319]

In the last video where you showed the Z, N - chart, you said that neutron emission was something an element did until it was down to a low enough number for beta- decay (as was the opposite for proton-emission),, so how come Xe-137 does it? Great videos, btw.

[@DrPhysicsA]

+Sure m8 In the series (I cannot now recall exactly which video) I show that the decay process is determined by the approach which is energetically most favourable.

[@surem8319]

+DrPhysicsA Oh, guess I just misinterpreted what you said. :)

[@robertadorrough3852]

Almost as entertaining as Monty Python. You're the bomb. Well, close anyway. No oops this time. Talking about elements that nature never wanted uh-uhr intended. Thanks, looking forward to fusion jazz, whenever you're done fizzing and decaying, please don't spend more than a half-life. Cheers.

[@I_Like_Remote_83]

Nickel 62 is more stable