Fusion Power Explained – Future or Failure

  • Published: 10 November 2016
  • How does Fusion Energy work and is it a good idea?

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Comments • 11 011

  • Kurzgesagt – In a Nutshell

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    • Ikelos
      Ikelos  4 weeks back

      @Bomby and Friends I one hundred percent agree. The next big hurdle in public education is making grades K-12 streamable. Anyone in the world would have access to a public education if you could stream grades K-12.

    • George George
      George George  1 months back

      Could you possibly kindly aspire a really good take on geothermal energy and on how it can be applied to power humanity emissions free for thousands of years?
      Pretty pleaaaaaaaaaaaaaaZ.

    • Matthew Dick
      Matthew Dick  4 months back

      The author leaves a lot out. Fusion is a money pit because of mismanagement. Most of the money goes to the Tokamak......a device that no power company will buy

    • Knærtn
      Knærtn  4 months back


  • Jeremy Allen
    Jeremy Allen  50 minutes back

    I've created a word which lead to the idea which came the invention of a field of energy which I call hypernetics although in stable and un proven if set fourth cant be strapped as a Juggernaut but if could be harnessed correctly would be unlimited power forever with no complex contraptions just timing and timing and timing the only way to precisely stop the force exactly with the exact amount of energy

    • Charlotte Done
      Charlotte Done  1 days back

      you should mack a video on terrorforming

      • Alice Argentino
        Alice Argentino  1 days back

        Very imuyte

        • Neeraj Sonu
          Neeraj Sonu  2 days back

          The last advertising part is actually 2X times faster!😂

          • Adrian Cremenea
            Adrian Cremenea  2 days back

            ?How much is worth the answer to the "problem" unlimited free clean energy, a device that turns one glass of water to produce more energy than a barrel of petrol?

            • John Papiewski
              John Papiewski  2 days back

              If you think tokamaks are it, you're stuck with tritium and He3 - low hanging fruit that's easy to fuse. There are other methods that can burn D-D, P-B11 and other more practical fuels. As well as producing fewer neutrons, which turn your expensive reactor into brittle junk in a matter of months.

              • Daniel Bojidarov
                Daniel Bojidarov  2 days back

                imagine slipping a bottle into that thing :0

                • Pist0n
                  Pist0n  3 days back

                  That Wallace & Gromit reference at 3:44 pushed me back in my chair

                  • lush push
                    lush push  4 days back

                    No spider man reference

                    • Delphineas
                      Delphineas  4 days back

                      I'm really disappointed by this. hat I wanted to know is how we CONVERT the energy from fusion into a usable form. Same principle as steam turbines, or something else?

                      • pappoos2
                        pappoos2  4 days back

                        Exactly the same as steam turbines.
                        Electricity generation always utilizes turbines unless it's not solar.

                    • David Cuellar
                      David Cuellar  4 days back

                      “Cost” so f*ck capitalism is what you’re saying

                      • Eric Lee
                        Eric Lee  4 days back

                        Why are all the comments talking about the US military expenditure

                        • Lisp
                          Lisp  4 days back

                          1:12 when your crush likes you back

                          • alaslfasf asfasjfsaf
                            alaslfasf asfasjfsaf  5 days back

                            moruq 10 milyarı buna verceğime saraya altın sandalye alırım aq

                            • Mystic Dragon
                              Mystic Dragon  5 days back

                              Kurzgezagt: can we bottle a star?
                              Me: that sounds like something a drunk person would say

                              • w mcc.
                                w mcc.  3 days back

                                Kindergarten automation

                              • w mcc.
                                w mcc.  3 days back

                                More detailed pics

                            • Rock Hill ER slendy Tubbies

                              Well we don't have the technology to do this yet like Fusion reactors

                              • aara555720
                                aara555720  6 days back

                                I doubt it will truly be free energy
                                Government will find a way to nationalize/corner the market and put a tax on our energy usage, close to our current electric bill

                                • Marqan
                                  Marqan  6 days back

                                  So to put it simply in plasma state the protons are contantly yelling "no homo"?

                                  • Markimus
                                    Markimus  1 weeks back

                                    The eventual discovery of fusion power could be the reason we haven't spotted any dyson spheres. There's just no reason to.

                                    • AV3NG3R00
                                      AV3NG3R00  4 days back

                                      A Dyson sphere is basically just another type of fusion reactor. It's probably the best type, since it generates quadrillions of times more energy than our biggest power stations, with no need to worry about confinement/heating/cooling/fuel processing and mining etc. All we have to do is build a whole bunch of smart mirrors to orbit our sun, and some way of beaming the energy to somewhere on earth where it can be converted into electrical power. Once we build it, it would be many times more cost effective than terrestrial fusion.

                                  • Jason Bentley
                                    Jason Bentley  1 weeks back

                                    "unlimited energy for everyone" ... who ever owns the first fusion plants will probably become the worlds first trillioinaire. Think about it, how expensive is it to get a cup of sea water vs a barrel of oil... Initial investment will be huge sure but cost of running it seems so cheap you could say its almost free...besides labor, taxes, and cost of replacement parts, and cost of fuel there doesn't seem to be much in the way of operation cost... so where do I invest???

                                    • Ben Dover
                                      Ben Dover  1 weeks back

                                      Ya know we wouldn’t have so mutch of a down side if we used thorium instead of uranium or plutonium and there wouldn’t be a catastrophic melt down if you used thorium

                                      • Ali Mushrif
                                        Ali Mushrif  1 weeks back

                                        Amazing job

                                        • Derino k
                                          Derino k  1 weeks back

                                          1:48 ..hah..ha DBZ fusion dance....

                                          • kok fah chong
                                            kok fah chong  1 weeks back

                                            The sun is not a lump of hydrogen gas. High temperatures will only cause atoms to go their separate ways (e.g. outwardly motions). To be honest, the sun produces heat and light through fission on its dense radioisotopes. No doubt that the atmosphere of the sun is enriched with hydrogen and helium gases and this doesn't imply that the sun generates heat and light by fusing hydrogen gas into helium gas. The upper atmosphere of the earth is also enriched with hydrogen and helium gases that derived from proton emission and alpha emission respectively on decaying radioisotopes within the core of the earth. Face this: Einstein's famous equation, E=mc^2 is wrong otherwise garbage also can be used to make nuclear bombs as  long as it is matter or it has mass. Energy and matter can't interchange one another according to Einstein's famous equation. One must have photons before one can emit out photons. Photons are particles and they have mass. All forms of EMWs including light and heat are dynamic photons per volume per time in different saturations. During the detonation of an atomic bomb, gargantuan amount of heat and light have been emitted out. The loss mass during the detonation is equal to all dynamic photons that have been dissipated out during the detonation that released from splitting nuclei of uranium-235 atoms. Therefore without any doubt that photons have mass. Capturing those dynamic photons will cause severe change in momentum therefore a "typhoon-like" winds blew outwardly from the zero-ground. Einstein's famous equation is the foundation of modern physics. If Einstein's famous equation is wrong or not true, this will bring the downfall of the entire modern physics. Fusion is a "bluff"! It only takes place during the last phase of the implosion of the entire universe before Big Bang. Only dense and very dense stable elements will be churned out during the last phase of implosion of the universe. As the universe expanding further, those used-to-be stable elements will eventually turn into radioisotopes after the angular momentum of their nucleons is no longer able to resist the strong repulsive forces among protons within their nuclei. Decaying on those dense radioisotopes will emit out intense heat and light, this will cause the emergence of stars within the universe. If you are interested in real discoveries, I would recommend you to read my book, The Unification Theory - Volume One and you will be amazed with lots of new, interesting discoveries. In God I trust.

                                            • Nimble Nickel
                                              Nimble Nickel  2 weeks back

                                              Kurzgesagt, please make a video about fracking! :)

                                              • WaLlAb33
                                                WaLlAb33  2 weeks back

                                                Ah yes, the precious tritium

                                                • JumpinNick
                                                  JumpinNick  2 weeks back

                                                  And i need more of it this time.

                                              • PN Prion
                                                PN Prion  2 weeks back

                                                Хах, главный вопрос! Окупит ли себя французский реактор, или просрем на работу магнита миллиарды долларов

                                                • Andrew Hawkins
                                                  Andrew Hawkins  2 weeks back

                                                  Kurzgesagt:*talking about anything*
                                                  no one:
                                                  Kurzgesagt:: WE NEED A MOON BASE

                                                  • MechanicPluto24
                                                    MechanicPluto24  2 weeks back

                                                    Electromagnet: -269 Celsius
                                                    Plasma: 150M Celsius
                                                    Temperature difference: pretty much what it feels like to turn the shower handle .001 nanometers

                                                    • Demyte D-1248
                                                      Demyte D-1248  2 weeks back

                                                      no more fusion is waiting! imminent

                                                      • R3tr0. mov
                                                        R3tr0. mov  2 weeks back

                                                        We should get the sun in the boat

                                                        • Fausto Araujo
                                                          Fausto Araujo  2 weeks back

                                                          It sounds like an infomercial for a brand.
                                                          I'm very suspicious, now.

                                                          • Swapnil Paul
                                                            Swapnil Paul  2 weeks back

                                                            I need dark energy and special matter and the largest galaxy IC 1101 details in depth

                                                            • slucarios
                                                              slucarios  2 weeks back

                                                              Fusion is just a cheap tactic to make weak energy stronger!

                                                              • thediamondshard
                                                                thediamondshard  2 weeks back

                                                                People once said that crossing the Atlantic was impossible, we did that, people once said a man on the moon was impossible, we did that, everything’s impossible until you make it happen!

                                                                • sleepy boi
                                                                  sleepy boi  2 weeks back

                                                                  And it will boil water same with nuclear and geo.. Something new? Like its energy will be transferred directly to regulator then distribute?

                                                                  • William Armitage
                                                                    William Armitage  2 weeks back

                                                                    What about the Arc Reactor from Iron Man?

                                                                    • Just Newb
                                                                      Just Newb  5 days back

                                                                      It's sci-fi man. Not gonna happen

                                                                  • Jrlomay0616
                                                                    Jrlomay0616  2 weeks back

                                                                    3:46 is that a Wallace and Gromit reference?

                                                                    • Sayeed Abdullah
                                                                      Sayeed Abdullah  2 weeks back


                                                                      • Jonathan Tripp
                                                                        Jonathan Tripp  2 weeks back


                                                                        • Stormy
                                                                          Stormy  2 weeks back

                                                                          I am a firm believer in the idea that if we attain fusion energy in an energy-profitable manner, third-world countries would develop out of existence within 20 years.

                                                                          • Ayan Chowdhury
                                                                            Ayan Chowdhury  2 weeks back

                                                                            *Tentacle* *Duck* !! WTF!! 😛

                                                                            • Debasis Maity
                                                                              Debasis Maity  2 weeks back

                                                                              Total energy(unlimited!) produced by fussion will finally convert to heat(remember the 2nd law? ) . That will eventually heat up the earth and global warming will be further accelerated. We can bring fuel from moon but how to release the heat from earth without increasing earth's temperature?
                                                                              Is any body worried on that? Or will solve that later!

                                                                              • DepressedCat
                                                                                DepressedCat  7 hours back

                                                                                HA, HA, HAHAHAA! You legitimately believe that the heat from fusion reactors is going to affect the Earth when we're constantly bombarded by the heat of the Sun? How do you think the heat from the Sun escapes Earth then?

                                                                              • Bijay Shrestha
                                                                                Bijay Shrestha  2 weeks back

                                                                                Debasis Maity it should be better than coals and other sources.

                                                                            • Name
                                                                              Name  2 weeks back

                                                                              Sound vibration

                                                                              • Josh Gatto
                                                                                Josh Gatto  2 weeks back

                                                                                It's our barrier once we get clean energy for everyone we blow up

                                                                                • Boris R. Cuduco
                                                                                  Boris R. Cuduco  3 weeks back

                                                                                  Maybe the Chinese already know how to make a fusion reactor and that's why they want to keep traveling to the moon.

                                                                                  • Didi Danica
                                                                                    Didi Danica  3 weeks back

                                                                                    Yeah sure, but why u lying. Bitch stop lying.