A stone skimming the surface of a liquid layer. If \(x_1\) reaches the body’s leading edge, we deem it to have sunk, while if it reaches the trailing edge, this is a skim.
More from Chalkdust
In conversation with Alison Etheridge
Elinor Flavell talks to the recently appointed dame about life, mathematics and more.
Prize crossnumber, Issue 20
Can you solve it?
Issue 15
Squid Game, hidden harmonies and DnD coming your way in our brand new issue! Plus all your favourite puzzles & columns.
Issue 14
Venn diagrams, retrograde chess, and behind-the-scenes Christmas lectures all feature in our autumn 2021 edition. Plus all your favourite puzzles & columns.
Significant figures: John Conway
The story of an unforgettable mathematician.
Top Ten: Units of measurement
The definitive chart of the best units