DISTRIBUIȚI

sursa foto:  ScienceAlert

Coreea de Nord a anunţat că a testat o bombă cu hidrogen, transmit duminică agenţiile de presă Yonhap şi AFP.

Postul public de televiziune de la Phenian a afirmat că testul a fost un ‘succes total’. Bomba cu hidrogen poate fi montată pe noul tip de rachetă balistică intercontinentală de care dispune regimul nord-coreean.


Anterior, Japonia şi Coreea de Sud confirmaseră că Phenianul a efectuat duminică al şaselea său test nuclear. Potrivit Agenţiei de meteorologie din Coreea de Sud, puterea exploziei produse de acest test a fost de 9,8 ori mai mare decât cea de la testul precedent, realizat în septembrie anul trecut şi care fusese cel mai puternic dintre toate experimentele nucleare nord-coreene începând din 2006.

Care ar fi diferențele dintre cele două tipuri de arme:

Reuters

Hydrogen bombs do something even more extreme.

They rely on combining two or more atoms together in a reaction called fusion. Fusion is what powers stars like our Sun to make them so hot and bright, to give you an idea of the potential power of a fusion bomb.

Below is a second graphic showing a boosted atomic bomb and a hydrogen bomb. A special form of ‘heavy’ hydrogen or deuterium (green), is key to both weapons.

It causes more fissionable atoms to split, and thus release more energy all at once:

Reuters

In order to trigger fusion, however, you need a tonne of energy – which is why a fission bomb has to detonate first. So H-bombs are really made of two bombs: a fission bomb and a fusion bomb:

Inside an H-bomb, a ‘boosted’ fission bomb releases a blast of powerful X-ray radiation, which is focused precisely onto the fusion bomb.

This happens before the shockwave can blow apart an H-bomb, by the way, since X-rays travel at light-speed and blast shockwaves do not.

That X-ray blast then sets off the fusion bomb, creating an explosion powerful enough to merge a bunch of atoms, convert some of that material into pure energy, and trigger a blast that’s frighteningly more powerful than an atomic bomb’s.

Here’s the full Reuters graphic that compares all of the bomb types:

Reuters