Ellipses in Real Life - Lithotripter

[b][size=150]Lithotripters are used for pulverizing kidney stones non-evasively using shock waves. [/size][/b]
[size=85]Source: Algebra and Trigonometry: Graphs and Models (5th Edition) by Bittinger, Beecher, Ellenbogen, and Penna[/size]
– Chip Rollinson

Information: Ellipses in Real Life - Lithotripter