Giordano Bruno was a monk who was martyred for proposing the revolutionary idea that the stars were suns like our own with planets and life.

“He had just read Copernicus' De Revolutionibus, which puts the sun back in the I say back because the Greeks knew this, but they got lost in the Dark Ages. But the sun back in the middle of the known universe. Okay. He, religious man, God-fearing man, said, hmm, If the Sun is in the middle and not E”

Harold Edgerton's unique contribution to strobe technology was not the invention of the strobe itself, but his exceptional artistic eye for composition and photography.

“Edgerton isn't the first to make a strobe. Rather he took new bits of technology that existed so he could make a better strobe. A strobe that was brighter, shorter flash duration. But he was not unique in that. There were lots of electrical engineers in the world at that time who could have done tha”

History of science should not be viewed as a series of breakthroughs by isolated, famous geniuses, but rather as a collaborative effort involving many people making incremental advancements.

“so many histories of science are told as kind of parades of great men and it is so often men in these stories where it's like a lone genius who solved this problem and then another lone genius comes along 100 years later and we all know that science doesn't work like that”

The work of Marie Curie represented a pivotal moment where physics and chemistry converged and impacted society.

“this is a pivotal moment in the history of Science and it's a moment when physics and chemistry really meet and they meet Society in a fundamental way”

The earliest method of human timekeeping involved observing shadows cast by objects like sticks in the ground.

“And if you really pay attention to this kind of stuff, you can actually use it to track time throughout the day. And that is almost certainly the earliest way that humans track time. And the stick they put in the ground is widely known as a nomon.”

Mathematical definitions are often nonsensical because they lead to an infinite recursion, and it is better to use undefined terms.

“You shouldn't have definitions, you should have undefined terms. I'm not gonna tell you what a point is, I'm not gonna tell you what a line is, I'm not gonna tell you what a plane is. All I'm gonna tell you is what the postulates are that they're assumed to satisfy.”

The discovery of electricity is one of the most important inventions in human history.

“I really do think that that that the sort of discovery of electricity is by quite a long stretch the thing that has changed the world more than any other invention perhaps since, you know, fire, right?”

The historical nuclear experiments conducted by the United States and the Soviet Union during the Cold War were recklessly conducted and potentially catastrophic for the planet.

“it's a great example of how some super talented incredibly intelligent people maybe so smart that it was hindering them they got together in a freaking little room and then they almost blew up the planet”