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Abstract
excerpts.
Trading Cards
1848
Doppler Effect Observed for Stars
Light Waves
In 1842, the Doppler effect was proposed by Christian Doppler. First confirmed for sound in 1845, then for light in 1848.
Physics
Story
“Everything is in flux.”
- Heraclitus
- 500 BCE
Impermanence
Change is the only form of permanence that exists—first glimpsed by ancient thinkers, and now woven into the fabric of modern science.
Physics
Quote
What is Schrödinger’s Cat and why is it important?
Wave-Particle Duality
Schrödinger’s Cat shows the tension between quantum superposition and everyday reality: the math allows multiple possible states, but measurement gives us one observed outcome.
Physics
FAQ
What is retrocausality?
Retrocausality
Retrocausality is the speculative idea that a later event might help explain or constrain an earlier one, especially in some interpretations of quantum mechanics.
Physics
FAQ