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  • Hello everyone ^^ I am Daniela Titan

  • today I came across this question on the internet

  • "What is the difference between nuclear fission and nuclear fusion?"

  • hmmm.. That's interesting.

  • So let's make this clear! ^^

  • Fission is splitting an atom into two smaller ones.

  • we need a huge atom for this job so we will take this Uranium here with atomic number

  • 92! Oh! Look at this!

  • Cute isn't it!!

  • Then we will bomb it brutally with this high-speed neutron

  • "nothing personal dude" and

  • ta-da! the uranium is split into two little atoms!

  • Barium 56 and Krypton 36! By that split we have a huge amount of energy

  • released The energy in fission is a million time greater

  • than the energy produced in chemical reactions Isn't this awesome?

  • Now let me tell you a secret, okay? this reaction does not normally occur in nature.

  • and ...wait fission produces highly radioactive particles

  • and a lot of heat. Alot!

  • and that is the kind of energy used in atomic/nuclear bombs

  • Pleasant huh?

  • So on the other hand

  • Fusion is fusing of two or more little atoms into a larger one.

  • here we have two atoms of hydrogen 1 this deuterium (hydrogen with one neutron)

  • and tritium (hydrogen with two netrons) cool words, huh?

  • Anyway, we crash them together in high speed and ta-da!

  • we have a Helium 2 atom with two neutrons, one neutron is released along with a large

  • amount of energy! What do you think of that?

  • And the energy released by nuclear fusion is three to four times greater than the energy

  • produced when we have a fission reaction.

  • Fusion occurs in stars, like the sun.

  • High density and high temperature environment is required in order to bring two or more

  • protons together that nuclear forces overcome their electrostatic repulsion.

  • And... What's that? It's the power that forces two protons to

  • avoid each other, it's like having two + side magnets and trying to put them together; you

  • can't.

  • Here we have another pleasant fact! :D One class of nuclear bomb is the hydrogen

  • bomb, which uses a fission reaction to "trigger" a fusion reaction.

  • (since a high temperature environment is required and a nuclear fission reaction can offer that)

  • and this bomb is the most deadly one humanity has as far as we know!

  • Awesome..!

  • So someone would say: "Why do we have energy production in both

  • reactions since they are the opposite? Shouldn't one of them take in energy instead?"

  • Hehehehe You see my eye? (WTF)

  • That's because in the fission reaction we release the energy that keeps the core together

  • that overcomes the electrostatic repulsion. And in nuclear fusion we transform the mass

  • in to energy using this equation where Delta m is the change in rest mass of particles

  • THIS IS AWESOME!!!!!!!!!!!!!!!!!!!!!!!!!! ...isn't it?

  • That's all ^^ AAAnd hope I was helpful!

  • You can always ask me another interesting question to make a video and define it in

  • the comments, in the comments subscribe and like for more videos!

  • Bye Bye ^^

Hello everyone ^^ I am Daniela Titan

字幕と単語

B2 中上級

かわいい科学。核分裂と核融合!:3 (Cute Science: Fission and Fusion! :3)

  • 657 35
    QAM Chen に公開 2021 年 01 月 14 日
動画の中の単語

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great

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UK /ɡreɪt/

  • adv. 非常によく : すばらしく
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interesting

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UK /ˈɪntrəstɪŋ/

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