A card from a free library — ask anything, no account, works offline. Every card carries its source.
A thirty-year-old's maximum heart rate
earth life
The Tanaka formula estimates maximum heart rate as 208 − 0.7·age — 187 bpm at thirty, the modern refinement of the old 220 − age rule. Worked & sealed by the engine — HRmax = 208 − 0.7·30 = 187 bpm. [HOLDS; open the seal to re-check.]
source
card id
card_works_heart_rate
address
UNPLACED
adjoining cards
- on the shelf of → The Works — sealed, worked demonstrations — a member of the the-works shelf in the keeping
- 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 → HRmax = 208 − 0.7·30 = 187 bpm — A worked demonstration in the same field (exercise_science).
- adjacent → The nested control-systems rule: meet a failure at its own layer — Neighbouring worked demonstrations in the same part of the volume.
- adjacent → When dew forms: the dew point — Neighbouring worked demonstrations in the same part of the volume.
Is this card incomplete? Tell the library — it will call out for more ↗