DR. F. TYLER'S collection of experiments is intended to cover the practical work required for higher school certificate and university scholarships, and also for first-year university courses. Most of ...

For Elisabetta Matsumoto, knot theory is knit theory. Elisabetta Matsumoto holds a Geared Cuboctahedral Jitterbug that she designed with mathematician Henry Segerman.Credit...Johnathon Kelso for The ...