The Ukrainian nuclear reactors are described. This video explains what to worry about, and what not to worry about when a nuclear reactor is in a war zone.
@E Van I think one of the key takeaways is that instead of a graphite moderated reactor that needs the water to keep it in check, these are water moderated reactors that require the water to make fission possible. If the reactor gets hit and the water drains out, what little reaction there is will stop. If the water converts to steam, the reactor will expel it, then dry up and then stop. Thus the reactor won't become a giant self sufficient raging inferno.
Most people aren't very smart, and this isn't a truly simple concept. Fission is complicated, and the Dr. Is explaining is explaining it very well. (but who thinks about heat transfer, fission products, how fuel rods are built, or how reaction containers are fortified.. Or even the mass of depleted fission products and how they are not easily aerosolized? Very few, I assume.)
most people are not smart, without our technology they would still think that the earth is the eye of a turtle and if the turtle shakes its had that causes earthquakes. Dont expect to much from the common fool
I'm afraid there's no such a button. Education is a key here but it is impossible to educate this kind of topics en mass af far as my living experience suggests.
Thank you Prof. Ruzic! I didn't know the plant was made of a set of pressurised water reactors; I thought the reactors were of the old RMBK design. I'm a bit more serene now. It would be nice to see you more often. Regards from the UK, Anthony
I just watched over 2 hours of vids from this channel. Fascinating stuff and extremely well presented. I'm a U of I civil engineering grad so it makes me happy to see a prof of this caliber at my alma mater!
Thank you so much for this most informative video, Professor! This I can use as a tool to dispel some of the fears of people around me here in Europe. You can explain it much better than I can. As a not-at-all nerdy hobby I study nuclear reactors (with a heavy emphasis on the good old RBMK, though flawed it is in its design), and your videos have taught me so much about the subject of fission/ nuclear reactors. How I wish I would have had the chance to follow even one of your classes. Keep up the good work!
IBM explains its setup for writing backwards in the air! Not very high-tech fortunately. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Uoz_osFtw68.html
I have really been wondering about the risk of attack and the credence of the nightly news casts that have been freaking me and my kids out. Thank you for this and the calm and logical explanation, it will help me and my kids sleep better.
I recently gave a presentation on the "three cookies" quiz. I think I'll link this video to some of my colleagues so they can understand better. Thank you for being a rational mind in the hysteria.
I would add that graphite, that was in RBMK reactor, which was secondary moderator that kept reaction going, also is flammable and it's hot ashes became radioactive that spread with wind across long distance - modern reactors not only do not have secondary moderators, they do not have flammable/ash-able components so EVEN in full and total meltdown with uncovered reactor core (which itself is very hard to achieve), hazard zone would be localized, and not widespread.
That's good to hear. I have degree level physics and have been a proponent of nuclear derived electricity for decades. Nuclear power is deliberately demonised by the 'establishment'.
love your lessons' prof, the few real prof's we still have. You also must have been irritated by the nonsense of what politicians say about these power plants.Hope to see more of your video's. Your video's of the past should be obligatory to watch for student one's they go to university there they get thought how to play dames on electric game and standard computers and to write manifests to fight climate change.
Very nice professor! I took an energy class from you a couple years back and wondered if the remaining reactors in Ukraine were of the bad Chernobyl design. Thank you for the update!
@@Txmj122 I've watched lectures on youtube. Some of them are pretty good. The information is similar, but the but the production value for this channel is much higher. He's not using the first take. It's one of the reasons I subscribed and hope he posts more often.
One thing that needs explanation. Why was the news media making a huge deal about Chernobyl losing offsite power when there shouldn’t be anything to cool there?
You still need electricity to run the ventilation fans. I suppose the 'New Safe Confinement' is held under slightly 'negative' pressure to the surroundings by those fans. This means some air from the inside is drawn out the NSC by fans, filtered and ejected to the outside, while there are other fans to 'push' back air in (but a little less than is drawn out, to maintain the negative pressure). Loss of electrical power to these fans (and al the other systems for conditioning this air, like heating or cooling) wil eventually lead to loss of negative pressure and a chance that some contaminated air could escape.
That was a nice presentation. Simple to understand. I have a B.S. in Nuclear Engineering, U of I, 1981; now pretty much retired. I feel that I got an excellent education there, and I wish you all the success in your career. My career did not go so well, unfortunately, but I had a few psychological "issues" that made it difficult to work with other people (and at times endangered my security clearances), and that was fatal. I had a feeling that my college life would be as good as my life would get, and except for making big bucks for several years, I am now a pensioner waiting for his next check. Sorry to cheer you up so much!
Hey professor! Long time no see! Thanks for explaining that to us! By the way, when will you come back to Brazil so I can be your guide again? Say hello to everyone for me!
Hi David, i have been watching a lot of your videos about radiation and was wondering would it be worst to try and intercept a nuclear strike due to high concentrations of nuclear material being scattered when it is intercepted?
