Recent content by staballoy

Thank you, but what are the EM waves made of? Aren't photons the carriers of the EM force, but I do not see references to them in discussions of magnetism. I understand using a reference magnet to determine another magnet's north and south poles, but at some point one might not have such a...

1. How is magnetism propagated? The descriptions I have read of magnetism explain about spinning electrons and the effects of magnetic fields, but I can find no explanation how magnetic force is propagated. Gravity is explained via GR and the effects of mass/energy on space-time, but I don't...

Communications satellites orbit at 22,300 miles. The moon is a satellite, and orbits at an average of 238,000 miles. A satellite can orbit the until until if falls under the stronger gravitational influence of another body, the Sun for example. There are a couple of our space probes, at...

Your explanations have given me my "Eureka!" moment. Thanks to all for the patient and kind explication.

I'll take answers to both. The diagram from the link offered above (http://www.physics.ucla.edu/demoweb/demomanual/modern_physics/principal_of_equivalence_and_general_relativity/curved_time.gif) helps a bit. If I understand correctly, the passage through time slows the closer an object is to a...

I understand that mass warps spacetime, and am well familiar with the bowling ball/rubber sheet analogy, but that to me is a depiction without explanation of the process. It doesn't explain for me what actually causes an object, Newton's apple for example, to accelerate toward another mass, in...