Pendulum swing.
How to multiply numbers: Napier's Logarithms and the slide rule.
Maddening square gardens.
Lost in a cave !
Logarithms are useful in representing numbers by their magnitudes.
How tall is Royce Hall?
How high is that cloud?
A hint to garden E.
Look at that fluffy cloud!
Make right angle with a rope.
(266 records)
prev 10 : next 10