Daily Quantity

How to play

• Every day there's one real physics quantity to guess — a constant, a speed, a mass, a distance.
• After each guess, you'll see whether the real answer is higher or lower, and roughly how close you are.
• Physics quantities span enormous ranges, so "close" is measured by order of magnitude, not raw difference.
• You get a hint after your 2nd and 4th guesses if you haven't solved it yet.
• 6 guesses total. Come back tomorrow for a new one.