Exercises to Avoid. While most exercises are safe during early pregnancy, you should avoid certain activities all together. Avoid contact sports such as rugby, tackle football or wrestling during pregnancy. Additionally, stay away from activities with a high fall risk such as downhill skiing and skating.
Fred Hoyle (and others) proposed a Steady State Theory (indeed, it was good ol' Fred who is credited with creating the term 'Big Bang' - ironically, he meant it disparagingly); it pretty much disappeared once serious study of the cosmic (background) (microwave) (radiation) - CMBR, or CMB, or ... - got under way.
Isidor Rabi (1898-1988) Credit for the discovery of NMR goes to Isidor Isaac Rabi, who received the Nobel Prize in Physics in 1944. Working at New York Cityâs Columbia University in the 1930âs, Rabi and his team were attempting to measure the magnetic properties of various nuclei including hydrogen, deuterium, and lithium.