Not really, but if you were in the right situation you could. Here’s the science behind it.
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WARNING: DON’T TRY AT HOME!!!!!!!
Since Barry Allen was forensic science for the police. When the chemicals in the lab where struck by lightning he gained his powers. More precisely hydrogen peroxide, but why was that in the lab. Hydrogen peroxide is used by forensic science to disinfect anything that they could pull evidence. But why was hydrogen peroxide struck by lightning, hydrogen peroxide is a huge conductor of electricity.
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But why would that make him the flash? Hydrogen peroxide is a main ingredient in a fuel cell and fuel cells are just big batteries. When it did hit the hydrogen peroxide, since lightning is very messy it probably splashed hydrogen peroxide every where. Then it would of entered Barry’s body through his mouth, a wound, eyes or pores. Thought it is possible that you would fry since the hydrogen peroxide is super charged but there is another possibility that you don't fry and live, why not? Fuel cells are infinite source of power what make fuel to keep on going.
What is this fuel? Water, yes water or in other terms hydrogen and oxygen what happens is the electric charge in hydrogen peroxide give the fuel cell protons and electrolytes that it needs to create energy. It also need hydrogen and oxygen to work with those electrolytes and protons to create that same energy. The protons carry hydrogen into the oxygen what creates water what leaves the fuel cell. The electrolytes stay put and creates a positive or negative charge depending on what charge is needed to create energy.
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What dose this have to do with you becoming the flash?by the time you an adult your body is about 60% water. If you have super charged hydrogen peroxide in you body producing protons and electrolytes, you body can become a fuel cell. Keep in mind H2O is 2 hydrogen atoms and 1 oxygen atom if these sound familiar that is what is needed in a fuel cell. The only problem is that fuel cells run at about 100*c and that would kill you.
Powers
Since now you body is an infinite source of energy you now have super speed but that's not the only power you would get, on command you could raise and cool your body temperature. But humans already can do that. But now you could nearly heat up and cool down your body to an infinite degree that would mean you couldn’t over heat or freeze. How cool would that be you could cook food instantly on you body or you could cool drinks down instantly #bestpartytrickever. But this is not all you would make your perception go faster what mean you could understand things faster also you would be able to speed up any control in your body what you have control over. And running there would be now limit to you speed because of that infinite energy at your disposal.
Down falls
There is problem some problem with running. Firstly, when you run so fast the particles in the air would not have time to get away meaning anyone or anything around you would explode and yes that includes you sadly. Secondly faster you run more pressure is exerted on you and according to newtons 3rd law “for every action there is an equal and opposite reaction”. There for faster you run against the particles more the particles are going to push back against you to equal the energy being exerted. This would hurt you, and if you want fast enough it would rip you to shreds in mere seconds. And there is now way to stop this from happening.
Of course this is all theoretical
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