Non-Shattering Ice Cubes [html]

How to prevent cracked and shattered ice cubes.

“Making tomorrow’s ice cubes…today!” (David, one of the experimenters)

picture of ice cubes

Two-Dimensional Interception Problem* [pdf] [html]

A solution to an interception problem when the velocity and direction of a target are known and the angle of interception is unknown. (The PDF version is recommended.)

*Disclaimer: I couldn’t immediately find a similar analysis by searching the Internet, so I made my own, and invented all my own terminology. (If you have training in this kind of thing, I’d love to receive a critique or a link to a more standard statement of the solution.)

diagram of a two-dimensional interception problem