Indeed it is. He's my favorite physicist (RIP). Yeah, I literally was typing and not thinking. I'm actually glad to be corrected. Helps me learn. Except, I'm not sure how long I'll be here. I already have a warning on me for [unintentional] misinformation. :uhh:
Brain fart. I meant upward force - not upward gravitational force. I was obviously not focusing on my writing in that post. I am not quite sure if you gathered my original point sans the error, but what I was talking about in Layman's terms is that gravitational and normal forces do cancel out...
Um, sir... have you ever heard of the spring force constant (Hook's Law) ?
And I could be wrong, but the "vanishes" in quotations may be an indicator of a non-literal interpretation. I think I knew what he meant.
Another way to look at it is, a scale does not actually measure your weight per se. It measures the force of upward gravity that balances the downward force of gravity upon your person (in equilibrium).
Yes. I'm talking about the vacuum of space. Gravity is the only force acting on the objects in space. They are in a free-fall. That was my whole point in stating: "good luck" - as in good luck trying to prove gravity isn't a force.
Physics noob here. I've recently been looking up alternatives to string theory (sorry, I'm just not that much of a fan of it) and found "Doubly Special Relativity" - which seems to be a possible waste of time. Is it? And are there any other testable theories out there (besides the Standard...