Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, ...

Learn which Excel formulas perform best for large datasets and how to optimize them for faster calculations and better ...

A total of 40 points overall with 20 points in three higher level subjects including 7 in higher level Mathematics and 6 in higher level Physics, or 39 overall with 19 in three higher level subjects ...