I thought matter to energy conversion are only possible in nuclear reactors. Also if you’re fat and exercise to lose weight does this mean you have converted your matter into energy?
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>if we get energy from the food we eat does this mean the food (matter) is converted into energy ?
No, it means the matter in the food is rearranged into a different chemical configuration that contains less stored energy.
> I thought matter to energy conversion are only possible in nuclear reactors.
If you want to get technical about it, the mass-to-energy conversion happens with all forms of stored energy, not just nuclear. However, in the case of food, the mass difference before-and-after is so incredibly tiny you’d never be able to measure it. Per E=mc^(2), 2000 dietary calories works out to only 93 nanograms of mass difference.
> Also if you’re fat and exercise to lose weight does this mean you have converted your matter into energy?
No, it means your body rearranged the hydrocarbons in fat into water and CO2, which you sweated/urinated/exhaled. Practically speaking, all the matter still exists, just not inside your body anymore.
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