Science.
Quick Hits
10 random key ideas.
1.
Tunneling shows that quantum systems do not behave classically,along smooth, continuous paths. It’s real, the math works, but the metaphysics remains unsettled.
2.
Quote:
- Copernicus.
- 1543.
From History:
Meaning:
Nicolaus Copernicus judged ideas not by tradition or authority, but by how well they fit the evidence.
4.
Article summary:
Human extinction is not the story of one straight line leading neatly to us. It is the story of many ancient human species living at different times, sometimes side by side, with most eventually disappearing while one lineage survived and spread.
5.
Quote:
- Carl Sagan.
- circa 1980.
Meaning:
Wisdom begins with perspective. We are are expressions of the universe. The particles making up your body are ancient, borrowed for a time from a universe much older than you.
6.
From History: 48,000 BCE (+/- 2,000 years)
Neanderthals made rope by 48,000 BCE indicating the raw cognitive abilities likely evolved on our common ancestor 440,000 years ago.
7.
Some inner struggles are shaped by biology, not just willpower.
8.
Quote:
- Charles Darwin.
- 1859.
From History:
Meaning:
In one brief line in 1859, Darwin moved human origins inside science. His quote signaled that our species should be studied as part of nature.
9.
From History: 185 Million BCE
An example of early live birth is the protomammal Kayentatherium, Jurassic period. The switch to live birth in mammals, including marsupials and placentals, evolved from a common ancestor.
10.
Water doesn’t weaken a permanent magnet, but time eventually does.
Done. Refresh for another set.