Science.
Quick Hits
10 random key ideas.
1.
Article summary:
We often talk as if our universe is a self-contained whole, but beyond the limits of observation, we simply do not know what else may exist.
2.
Quote:
- Copernicus.
- 1543.
Meaning:
Nicolaus Copernicus judged ideas not by tradition or authority, but by how well they fit the evidence.
3.
From History: Lived from 169 to 164 million years ago.
Proceratosaurus had the same general tyrannosaur-style look: a big head, long tail, strong hind legs, short forelimbs, and a built-for-biting predator shape: D-shaped front teeth and a crest on top of the skull.
4.
Gravity is universal: every mass influences every other mass, no matter how small.
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: 251,902,000 years ago (+/- 900 years).
The Permian-Triassic extinction was not just the end of many species. It was a planetary reset that destroyed the old synapsid-dominated world and opened the door for the archosaur line that would later give rise to dinosaurs.
7.
Some inner struggles are shaped by biology, not just willpower.
8.
Quote:
- Heraclitus.
- 500 BCE.
Meaning:
Change is the only form of permanence that exists—first glimpsed by ancient thinkers, and now woven into the fabric of modern science.
9.
From History: 125 Million Years Ago
By about 125 million years ago, early mammals were doing more than making a few simple sounds. Their signaling systems expanded into the dozens.
10.
Voyager 1 is more than 160 AU from the Sun, the farthest yet, but still only at the edge of our cosmic neighborhood.
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