100 years ago today — On January 15, 1919: Boston’s 2.3 million gallon molasses flood killed 21 people.

Check out this Bonsai Forest.

For Harry Potter fans — Here’s How Much it Would Cost to Build Hogwarts in Real Life.

How do trees survive winter?

A Short History of Showering.

This is what Ancient Egyptian homework looked like.

ICYMI, Monday’s links are here, and include the Feast of the Ass, a quickie diet advice from 1595, why moths are attracted to light, an embroidered computer, and how early filmmakers produced snow-like effects.