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U NITED S TATES P ATENT O FFICE.

NIKOLA TESLA, OF NEW YORK, N. Y.

COIL FOR ELECTRO-MAGNETS.

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A system for generating electricity from the geomagnetic field and rotation of the earth is presented. The earth rotates through the geomagnetic field to form a potential difference between first and second terrestrial charged bodies. The first and second charged bodies are spaced apart in a direction substantially normal to the earth’s surface. The system comprises an electrical load, a first current path, and a second current path. The electrical load has a supply input and a ground output. The first current path is coupled to the first charged body and to the supply input of the electrical load, for supplying the potential difference to the electrical load. The second current path is coupled to the ground output of the electrical load and to the second charged body. As a result of this arrangement, an electric current related to the potential difference is generated in the electrical load.

Entitled “The Problem of Increasing Human Energy — With Special References to The Harnessing of The Sun’s Energy”, it was published by his friend Robert Johnson in The Century Illustrated Monthly Magazine for June 1900 soon after Tesla returned from Colorado Springs where he had carried out an intensive series of experiments from June 1899 until January of 1900.

The exact title of the chapter where he discusses this device is worth giving in its entirety:

Interstellar object ‘Oumuamua — that strange, cigar-shaped chunk of rock from somewhere a vast distance beyond the Solar System — is, new research has concluded, absolutely, positively not an alien spaceship.

OK, well, probably not. We can’t tell for sure without closely examining the thing, and it’s passed beyond our reach now. But, after carefully reviewing all our observations of the object, the international team of ‘Oumuamua scientists has concluded that everything we know about it is consistent with a natural origin.

We already mostly knew this. But a paper last year from Harvard astrophysics enfant terrible Avi Loeb briefly suggested the possibility that the rock was an alien probe. It was like a spark to dry tinder, honestly, and other scientists have been running around with buckets ever since.

Chinese researchers are developing an airborne quantum communications network with drones as nodes.

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Machine learning, especially deep learning, is forcing a re-evaluation of how chips and systems are designed that will change the direction of the industry for decades to come.

Unifying all the forces and particles would require a particle accelerator far more powerful than humans have ever built.

Quantum supremacy sounds like something out of a Marvel movie. But for scientists working at the forefront of quantum computing, the hope—and hype—of this fundamentally different method of processing information is very real. Thanks to the quirky properties of quantum mechanics (here’s a nifty primer), quantum computers have the potential to massively speed up certain types of problems, particularly those that simulate nature.

Scientists are especially enthralled with the idea of marrying the quantum world with machine learning. Despite all their achievements, our silicon learning buddies remain handicapped: machine learning algorithms and traditional CPUs don’t play well, partly because the greedy algorithms tax classical computing hardware.

Add in a dose of quantum computing, however, and machine learning could potentially process complex problems beyond current abilities at a fraction of the time.