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Time travelers posting online: Are they all fake?
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<blockquote data-quote="Ayasano" data-source="post: 90496" data-attributes="member: 4804"><p>I'm sorry but that's just plain wrong. For starters, "weightless" is a misnomer that gets bandied around a lot. In a free fall the object still has weight, otherwise it wouldn't accelerate during the fall. The same is true of an orbiting object, gravity is just balanced out by the object's inertia.</p><p></p><p>As far as "dividing by an acceleration that is not present", perhaps you misunderstood my example. When you apply a force to an object, that object accelerates. That's physics 101. Without it, your car wouldn't go anywhere. If you measure the acceleration with a known mass, you can work backwards to get the force. With a known force, you can work out the mass. This is primary school physics.</p><p></p><p>The observations do match up with the formulae, I'm not sure why you would think otherwise.</p></blockquote><p></p>
[QUOTE="Ayasano, post: 90496, member: 4804"] I'm sorry but that's just plain wrong. For starters, "weightless" is a misnomer that gets bandied around a lot. In a free fall the object still has weight, otherwise it wouldn't accelerate during the fall. The same is true of an orbiting object, gravity is just balanced out by the object's inertia. As far as "dividing by an acceleration that is not present", perhaps you misunderstood my example. When you apply a force to an object, that object accelerates. That's physics 101. Without it, your car wouldn't go anywhere. If you measure the acceleration with a known mass, you can work backwards to get the force. With a known force, you can work out the mass. This is primary school physics. The observations do match up with the formulae, I'm not sure why you would think otherwise. [/QUOTE]
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Time travelers posting online: Are they all fake?
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