New traffic signs and gender equality program

There are plenty of walk- and bicycle ways in Finland. The rules are strict: Don’t walk on the wrong side or on the bicycle side of the way. The cyclists get angry, and you can hurt yourself.

How the size of a horse’s ass determined the size of the space shuttle rockets

Space Shuttle Rocket Boosters are 4 feet 8.5 inches wide. Why such an odd dimension? Because the boosters, built in Utah had to be shipped to the Kennedy Space Center in Florida via rail through a tunnel, slightly wider than a railroad track. US Standard railroad gauge (distance between the rails) is 4 feet, 8 ½ inches.