In 1964, 2 radio astronomers discovered an ancient light that's been saturating our universe since about 380,000 years after the Big Bang. That light is Cosmic Microwave Background (CMB) Radiation.
According to Space.com, after the Big Bang, the cosmos was a seething-hot, opaque fog of plasma and energy; things changed about 380,000 years later, when temperatures dropped enough for electrically neutral atoms to form, and the universe became transparent.
I just finished watching the new film Hidden Figures. It is about physicist and mathematician, Katherine Johnson as well as mathematician Dorothy Vaughan and engineer Mary Jackson, all of whom worked for NASA. It's about time these women got some recognition for their accomplishments.
Hooke's law is a principle of physics stating "that the force used to extend or compress a spring by some distance is proportional to that distance." It's used everywhere, in all branches of science and engineering.