General · Language · Media

Acceleration causes gravity, gravity causes acceleration

As I’ve written elsewhere,  I sometimes think that generations of scientists raised in space might help advance physics, having lived in a world dominated by inertia (rather than friction). Especially in regard to a visceral understanding of microgravity. Like characters in the TV series The Expanse. So, this Space.com article (June 18, 2018) “Relativity: The… Continue reading Acceleration causes gravity, gravity causes acceleration

General · Language · TV

Solar eclipse and relativity — there is no Vulcan

This Space.com article “Solar Eclipse Science Helps Prove Einstein’s Relativity Theory in Nat Geo’s ‘Genius’” published on May 30, 2017, reminded me of the connection between the study of solar eclipses and Einstein’s theory of general relativity. While the U.S. prepares for the Great American Total Solar Eclipse coming on Aug. 21, National Geographic’s “Genius” recounts… Continue reading Solar eclipse and relativity — there is no Vulcan

General · Language

GR: Chicken or egg redux

One of the major sources of confusion I’ve encountered in reading about modern physics is the discussion of gravity. No surprise, eh. Classical mechanics includes both Newtonian and relativistic mechanics. In Newtonian physics, gravity is an attractive force, which acts at a distance between all objects; and can be represented as a universal gravitational field.… Continue reading GR: Chicken or egg redux