Ripple tank
Interactions
- drag a dipper along the bar: the spacing changes, and with it the number of nodal lines
- click the bar or the control box: the motor steps its frequency and the new wavelength spreads out from the dippers
- click the water: a pebble drops; one ring spreads through the pattern, reflects weakly off the walls and dies
- click the slotted barrier: it slides in, the bar becomes a paddle, and the two slits make Young's fringes