Source: Wikipedia
The 1960s and '70s were a golden age of the dance craze, when a new step could sweep the nation and turn up at every party, wedding, and school…
Source: Wikipedia
For a child growing up in the 1970s, the bedroom was a personal kingdom, and it came furnished with a very particular set of objects that nearly every kid…
Animal navigation combines several systems at once, which is why removing one rarely stops an animal entirely. Here are seventeen of the tools involved.
1. Reading the Earth's Magnetic Field…
There is a piece of safety engineering visible on essentially every commercial ship afloat, and almost nobody who sees it knows what it is.
Midships on both sides of the…
Source: Wikipedia
There is an object in a museum case in London that does something a piece of fourth-century glass has no business doing.
Look at it with the light coming…
Almost nobody looks at a dark night sky and thinks it requires explanation. It is dark because the sun has set, which seems sufficient.
It is not sufficient, and noticing…