The angular setup for a point on the rim. To keep the parameterisation the same as the last case, the angles of incidence and reflection have been defined differently
More from Chalkdust
The Irrational Diary of Clara Valentine
We review the fifth of this year’s nominees for the Book of the Year
Creating hot ice
We created hot ice from scratch, a solution that remains liquid even below its freezing point!
Curiouser and curiouser!
Some surprising mathematical facts
Find your perfect partner
Find your perfect partner with this wonderful tree diagram!
Puzzles, Issue 02
These puzzles appeared in Issue 02 of the magazine.
Fractograms
Hugh Duncan explores the hidden patterns of fractions