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The Physics of Subatomic Particles (132 pp.)
The Physics of Subatomic Particles (132 pp.)

... dimension 5 ems . by 2 ems ., and finally hit a fluorescent screen on which they produce d a dot . When there was a high vacuum in the tube, the rays were seen to be repelled b y the negative plate and attracted by the positive one . The angle of deflection wa s shown to be directly proportional to ...
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... if you are riding in a bus and someone places a tennis ball in the aisle, it will remain at rest in the aisle as long as the bus is moving at a constant velocity. But if the bus accelerates the ball will roll. If the bus slows down, the ball rolls forward. If the bus turns left, the ball rolls to th ...
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Effort and Force - The General Science Journal

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Negative mass

In theoretical physics, negative mass is a hypothetical concept of matter whose mass is of opposite sign to the mass of normal matter, e.g. −2 kg. Such matter would violate one or more energy conditions and show some strange properties, stemming from the ambiguity as to whether attraction should refer to force or the oppositely oriented acceleration for negative mass. It is used in certain speculative theories, such as on the construction of wormholes. The closest known real representative of such exotic matter is a region of pseudo-negative pressure density produced by the Casimir effect. Although general relativity well describes gravity and the laws of motion for both positive and negative energy particles, hence negative mass, it does not include the other fundamental forces. On the other hand, although the Standard Model well describes elementary particles and the other fundamental forces, it does not include gravity, even though gravity is intimately involved in the origin of mass and inertia. A model that explicitly includes gravity along with the other fundamental forces may be needed for a better understanding of the concept of negative mass.
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