This holiday-themed brainteaser looks simple, but it's quietly tripping up adults everywhere. A math teacher walks us through ...

A laser is usually constructed from two basic elements: a material that provides optical gain through stimulated emission and an optical cavity that partially traps the light. When the total gain in ...

One university boosted gender diversity in advanced math by more than 30% in five years—here's how As the artificial intelligence (AI) and quantum computing industries explode, trained STEM ...

Challenge yourself each day to find words of 4 or more letters using the letter at the center of the flower. Advance based on the quantity and length of words you find. Can you make it to Golden Poppy ...

No. 3 May, 2010 pp. 1401-2180 No. 2 March, 2010 pp. 619-1400 No. 1 January, 2010 pp. 1-618 ...