Lemniscate of Bernoulli - GIF

[Altair]

In geometry, the lemniscate of Bernoulli is a plane curve defined from two given points F1 and F2, known as foci, at distance 2c from each other as the locus of points P so that PF1·PF2 = c2. The curve has a shape similar to the numeral 8 and to the infinity symbol. - Wikipedia




Previously:

Bernoulli's principle demonstration - GIF
Intermediate axis theorem - GIF and video
Charles's law demonstration - GIF
Meissner effect demonstration - GIF
Lenz's law demonstrations - GIFs