Thank you for all of your videos. I've never found anything that teaches how to science with math and interesting topics all in one video. You are a very kind person to share all of this with the world.
Love your work. No frills, honest physics & maths. Great presentation and cadence. And the line "let's call it 1.5 for cash" was the icing on the cake.
Thank you so much!!! I have been looking for the explanation to this query since so long :) Explained beautifully. Its amazing to see how activation energy affects a process so significantly.
It is just a matter of time for Gold to go Iridium then Rhenium and so on. Of course neither you or me nor the whole human existence as we perceive it will ever notice such an event but anyway it will happen, particularly for Gold as it is monoisotopic and a odd-numbered element. Good video, though. You have a new follower.
9:30 you draw graph N vs Z and previously the curve of real stability was above the N=Z line so the point (Z/2, N/2) should be under the line you draw. Correct me if I'm wrong. PS. Thank you for those videos, they are great. You make physics easy and interesting :-)
Remember I have asked you this before? Ah! Now I understand. Thank you very much! Although, I still wonder why not all gold turned into iron, with so many high energy cosmic rays out there that could provide the AE....?
Is the final computation correct? I fear it is not, since the same result for the binding energies of the two daughter nuclei would have been obtained when the two being far apart. I think you missed the coulomb barrier between the two daughter nuclei, which is what I fear gives the actual activation energy.
Quantum tunneling will do that eventually to all nuclei heavier than Fe 56 but the timescales required for this to happen are ridiculously long, think of something like 10^1500 years.
It's relativity...it's the outside forces that held a molecule together that has changed and not the energy of the molecules and that's the reason...no need for a 30min presentation
It emits an electron in the process (as well as an antineutrino which isn't important), conserving the neutral charge. In other words, the neutron (0) decays into a proton (+1) and electron (-1), both of which have opposite charges with equal magnitude, which sum up to the original 0 charge.
you made a mistake the binding is not defined as the energy that holds the nucleons togehther.I use to think the same thing as it's intuitive but physicists define it instead as the amount of energy need to sperate the nucleans to infinty.
So due to the tunnel effect all elements heavier than Fe-56 will eventually decay into Fe-56. Good to know, I shall not buy large stocks in iron and then try sell in the future.
