Gravitational field propulsion
Gravitational Field Propulsion by Droscher & Hauser
JAM4
On the interaction of gravity waves and thermal tides in the middle atmosphere Fabian Senf, Erich Becker Leibniz Institute for Atmospheric Physics, Kühlungsborn.
APES Review 2013-2014. Matter is anything that Matter is anything that A. Has mass and takes up space B. Gives off energy C. Is a solid at room temperature.
APES Review
