WEBVTT

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with all the talk about increasing Global energy consumption and finding a

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source of power that won't run out like fossil fuels will one day we've been

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looking for something both sustainable and Powerful for quite a long time solar

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and wind are much discussed options to solve this problem but simply put

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they're just not efficient enough today to address most of our energy needs and

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traditional nuclear power which relies on uranium fuel that may be depleted one

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day as well ALS o presents the additional problems of radioactive waste

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and possible meltdowns enter fusion

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power we've been kicking this idea around for so long that it seems like

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Fusion research is becoming another quest for the Fountain of Youth but why

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is that why don't we have it yet and what is so special about it well what's

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special is that Fusion can produce lots

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of energy from relatively small amounts of fuel by literally smashing atoms

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together usually these are hydrogen atoms that are well they're well they're

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fused together to make helium the same stuff you find in balloons well hold on

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a second line as I took grade 11 chemistry look at the mass of a helium

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atom it's lower than the two hydrogen isotopes that smash together to produce

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it well it turns out that this missing

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Mass was converted to energy during the fusion process because of differences in

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how strongly the protons and neutrons that make up hydrogen and helium stick

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to each other and a very small amount of

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mass is equal to a huge amount of energy

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you know that famous equation that people spout out whenever they want to

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look really smart what that means is that Fusion is extremely powerful even

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more than conventional nuclear fishing which splits atoms instead of smashing

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them together and because the only byproduct is helium we'd be rid of the

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carbon emissions from burning fossil fuels and you wouldn't even have to

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worry about radiation presenting an environmental hazard well cool then so

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why don't we just get a bunch of hydrogen and start like smashing atoms

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the special isotope of hydrogen that we need for Fusion called dyum is abundant

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in the oceans and could meet our energy needs for millions of years so it's not

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like we don't have enough fuel well there are other problems aside from the

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obligatory funding issues and political wrangling that come with any major

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scientific Endeavor one one major issue is that you need lots of energy to start

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a fusion reaction in the first place our own sun is a natural Fusion reactor in

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fact hydrogen Fusion has kept it burning for billions of years and will keep it

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burning for billions more but the sun can only do this naturally because it's

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so large the intense gravity at its core

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creates temperatures of millions of degrees that both smart guy it's hot

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enough to make the atoms fuse don't worry about it but here on Earth Earth

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creating those kinds of conditions is much more difficult right now there are

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experimental Fusion reactors that do work but because we have to heat dyum to

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such high temperatures they require more power to be put into them than they

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actually generate like trying to charge a solar flashlight with another

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flashlight the other big issue is how to keep a fusion reaction going once you

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started it you need to create enough excess energy with your initial reaction

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to cause other atoms to fuse not to mention that you then need a way to

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contain that reaction not only to keep it dense enough to keep temperatures up

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but also because you don't want a hydrogen plasma heated to millions of

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degrees hitting the walls of the reactor for what I think should be fairly

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obvious reasons a very strong magnetic

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field is one possible solution to the containment problem which is being used

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in one of the newest experimental Fusion reactors at in Germany German

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engineering am I right whose next goal is to keep a reaction going for a mere

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30 minutes to see if sustainable Fusion

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is something that's even feasible down the line so we're still a ways away from

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seemingly Limitless clean energy but we are starting to see the possibility that

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Fusion could be the solution to a future energy crisis that is assuming of course

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that Doc O doesn't come along and steal it for his evil layer I can't come up

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bear.com Linus Linked In the video description thanks for watching like if

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want to see And subscribe and follow and all that good stuff