William Shakespeare was born on April 23, 1564 and died on the same date in 1616.
Neutrinos are an example of what cosmologists call hot dark matter — particles that were still moving at nearly the speed of light at about a year after the Big Bang.
The name of the dog in the TV show Petticoat Junction was Mr. Higgins.
Although it would take many days of rubbing your feet on the carpet, it is possible to build up enough static electricity inside your body to make your finger explode.
The German Leopard tank can travel underwater.
This article appears in April 20 • 2001.
