If you want a strong magnet, the obvious answer is to buy one. However, for a variety of reasons, you might want to combine several smaller magnets. There are a few ways to do this, but the Halbach ...
If you want a strong magnet, the obvious answer is to buy one. However, for a variety of reasons, you might want to combine several smaller magnets. There are a few ways to do this, but the Halbach ...
Shuttling passenger pods through low-friction tubes at close to the speed of sound is a vision that needs to clear numerous hurdles to become a reality, but add a 15-year-old technological concept to ...
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