Hobbies & Crafts
Math for makers and tinkerers
4 live exhibits. Each one already works. Change a number and see what happens.
Open as board Play with these together. Solving one grows related exhibits.
Linear EquationsOhm’s law: how much current flows?
Push harder (volts) or squeeze tighter (ohms), and watch the current change.
TrigonometryHow tall is that tree? Measure its shadow
One shadow and the sun’s angle give you the height, no climbing needed.
Linear EquationsVoltage divider: two resistors make a new voltage
The output is the input times a ratio of resistors, until you connect a load.
Exponents & LogarithmsBrightness vs. distance: the inverse-square law
Move a light twice as far and it gives a quarter of the light. Photographers call that two stops.