Hinge of History Thread Part 3
Posted 04 December 2016 - 09:07 AM
Could Dark Matter Be Powering The EMdrive?
Nov. 30 2016
For every action, there's an equal and opposite reaction. This formulation of Newton's third law has two very important modern consequences: one, that there's a physical quantity that's always conserved in the Universe (momentum), and two, that the laws of physics are the same irrespective of your position in space. This has a huge slew of implications, including that if you want to power a device to change its motion, you need to push against something. This could be exhaust from a rocket, tires pushing against a road, train wheels on a rail-line or even photons reflected off a sail. The one thing that's forbidden is a reactionless drive: an action without a reaction. That's exactly what the EMdrive -- the "impossible" space engine just verified by a NASA test -- claims to be. If it truly works as advertised, it violates the laws of physics. But there's a possible loophole: perhaps there is a reaction, and we just don't detect it. Perhaps the reaction occurs, but it's occurring due to dark matter.
According to the standard model of cosmology, the majority of the matter in the Universe isn't in the form of atoms, or of any known particle. Rather, the overwhelming majority of mass -- by a 5-to-1 margin -- is in the form of dark matter. Dark matter doesn't collide, annihilate or otherwise interact with either itself or other, normal matter under any known circumstances, but rather interacts only gravitationally. After 13.8 billion years like this, it forms a vast, diffuse cosmic network of gravitational structure, and forms huge spherical haloes more than a million light years in diameter that contain galaxies like our own. This means, all told, that dark matter permeates every square centimeter of our galaxy, including existing -- albeit in small densities -- inside every object on Earth, including our own bodies.
Posted 10 January 2017 - 09:53 AM
Bear In Mind This Is Thomas L. Friedman...Uber Left.......Still
H/T Tucker Carlson
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