Manhattan, Nikola Tesla, DC discussed on Science Fantastic Live with Dr. Michio Kaku

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And then had a rivalry with him on the question of ac dc edison thought that dc electricity supply with energy in fact pearl street in manhattan was the first street in the world to be electrified with dc from thomas edison's generators but it was ac alternating current that one out promoted by nikola tesla this is sometimes called the war of the currents and it turns out that dc loses a lot of energy when is transmitted on a wire it turns out that ac you hit much less wastage of electricity and energy as that's why ac is preferred over dc is much more efficient well as time went on nikola tesla to became very famous he made these very audacious experiments you've probably seen photographs of him but in his collected works you begin to say some things that were not verifiable he thought for example that well maybe there martians baby we can communicate with them and he also thought that maybe there is energy from nothing that is wireless technology that he pioneer and wireless technology well is it possible to extract energy from the vacuum energy from nothing well according to einstein the answer is yes but according to the quantum theory you can calculate you can calculate how much energy you can get from the vacuum that it's called the casimir affec and it is extremely small so small it is not practical however if you want to find out more about negative energy get a copy of her my earlier books parallel worlds and also hyperspace which discussed the well rather magical properties of negative energy if you have enough negative energy acquaintance equations you can create a wormhole machine you can create a time machine if you have in a negative energy energy from the vacuum so in that sense we think tesla was probably wrong however we physicists knowing his true contributions knowing that he's been forgotten by society we decided to name the unit of magnetism after tesla one t is the magnetism you get from an mri machine so the next time you get an mri scan as a technician the strength of the magnet and he'll say something like one tv or one point one point five t t stands for tesla and of course elon musk is a physicist he was in the phd program in physics at stanford university he made.

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