Today, President Donald J. Trump joined top lawmakers and philanthropists Michael and Susan Dell to celebrate an extraordinary milestone for Trump Accounts: a historic $6.25 billion charitable ...

Numberphile revived an ancient multiplication trick—halves and doubles—also called Egyptian or Russian math, where you repeatedly halve one number and double the other. After crossing out rows with ...

In many rodent laboratories, blood samples are collected from rats using the tail vein nick procedure and analyzed to quantify blood corticosterone levels as an indicator of stress. The standard ...

If you’re not sure how to wrap a present, there’s an easy hack you can try. The clever trick—wrap diagonally, not horizontally or vertically—is based in math. Basic geometric principles explain how it ...