Gravity Dont Let It Get You Down! The Truth About Gravity u Gravity is a phenomenon and results in a force which can accelerate objects with mass. u.
Horizontal Circular Motion. Car rounding a flat-curve.
Some Remarks on Dark Energy Rong-Gen Cai Institute of Theoretical Physics Chinese Academy of Sciences （ Huangshan, April 9, 2011)
Some Remarks on Dark Energy
Black Holes and Extra Dimensions
