A card from a free library — ask anything, no account, works offline. Every card carries its source.
The energy in a single green photon
physical
A photon of 500 nm light carries E = hc/λ ≈ 3.97 × 10⁻¹⁹ joules — the quantum of energy that a leaf's chlorophyll is built to catch. Worked & sealed by the engine — E = hc/λ ≈ 3.97 × 10⁻¹⁹ J. [HOLDS; open the seal to re-check.]
source
card id
card_works_photon
adjoining cards
- on the shelf of → The Works — sealed, worked demonstrations — a member of the the-works shelf in the keeping
- kindred → Light bends: Snell's law at a glass surface — A sibling worked demonstration in optics.
- paves → The Floor of Discovery — one floor, and by its design the fear of God — A worked, engine-sealed demonstration — a paving-stone of the floor of reality.
- demonstrates → sin θ₂ = (1·sin30)/1.5 → θ₂ ≈ 19.47° — A worked demonstration in the same field (optics).
- adjacent → The speed of light is a defined exact number — Neighbouring worked demonstrations in the same part of the volume.
- adjacent → The electrons of sodium, shell by shell — Neighbouring worked demonstrations in the same part of the volume.
- adjacent → The running day-count astronomers keep — Neighbouring worked demonstrations in the same part of the volume.
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