WWB Trainer
WWB Key Ideas
The universe including astronomy, physics, and structure.
MODE:
~
4 minutes
of short abstracts.
Cosmology.
Some random key ideas.
1.
Competing ideas about the end of the universe, with the Big Freeze currently best supported by observations.
2.
Quote:
- Carl Sagan.
- circa 1980.
Meaning:
We are not separate from the universe—we are expressions of it, linked by matter, chemistry, and atoms.
3.
From History: 1610
In 1610, Galileo set incorrect maps of the cosmos on the right path. Our mental model of Earth at the center of the universe had to evolve to match observations.
4.
The farthest thing we can observe isn’t an object at all, but the universe’s oldest light. The Cosmic Microwave Background.
5.
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.
6.
From History: 1842
In 1842, Christian Doppler wrote about the doppler effect in stars. It was first confirmed with sound in 1845, then with light in 1848. The big moment came in 1868 when, for the first time, we could tell which stars were coming and going.
7.
Despite billions of galaxies in the universe, most can only see Andromeda. Some can see one or two more.
8.
Quote:
- Copernicus.
- 1543.
From History:
Meaning:
Nicolaus Copernicus judged ideas not by tradition or authority, but by how well they fit the evidence.
9.
From History: 1848
In 1842, the Doppler effect was proposed by Christian Doppler. First confirmed for sound in 1845, then for light in 1848.
10.
Voyager 1 is more than 160 AU from the Sun, the farthest yet, but still only at the edge of our cosmic neighborhood.
Done. Refresh for another set.
TST Trainer
(c) 2025-2026 TouchstoneTruth.
Writing and coding by Michael Alan Prestwood.
(c) 2025-2026 TouchstoneTruth.
Writing and coding by Michael Alan Prestwood.
