Copper ions in solution moving between two electrodes in a magnetic field produce a swirling motion that can easily be displayed on an overhead projector. Place some pepper on the surface of the ...

Barbara Takenaga’s Forte was the jumping-off point for this mobile, which reflects her life through the use of colour and other elements. The mobile has two sides, one composed of muted colours, and ...

He then realized that the swirling was clearly visible in videos ... of around 9 people packed into each square metre. The motion is slow enough that participants are probably unaware that they ...

Make small, tight circles, and not too fast, but you do want a continuous, rolling motion. Don't be that person with a big, showy swirling technique -- keep the glass low and the motion controlled.