The Eiffel Tower can grow more than six inches during the summer. The high temperatures make the iron expand.
100 Mind-Blowing Expand Facts
Wimbledon tennis balls are kept at 68 degrees Fahrenheit. The temperature of a tennis ball affects how it bounces. At warmer temperatures, the gas molecules inside the ball expand, making the ball bounce higher. Lower temperatures cause the molecules to shrink and the ball to bounce lower. To make sure the best tennis balls are used, Wimbledon goes through more than 50,000 tennis balls each year.
The Eiffel Tower leans away from the sun. Heat makes metals expand. As such, the top of the Eiffel Tower can move up to 7 inches in the summer.
The Eiffel Tower grows during the summer. In the summer heat, the high temperatures make the Eiffel Tower’s iron expand up to 6 inches.
Water expands when frozen. When freezing water, the molecules lose their energy and hold still. This causes more stable hydrogen bonds that form between the water molecules. These additional molecules are what cause the water to expand when frozen.
Wimbledon tennis balls must be stored at perfect room temperature. Wimbledon tennis balls must be kept at 68 degrees Fahrenheit because the temperature affects how it bounces. If it’s warmer gas molecules inside the ball expand, which makes it bounce higher. If it’s cooler, the molecules will shrink, making the ball bounce lower.
The Eiffel Tower can grow up to about 6 inches taller in the summer. That’s because the heat makes the iron expand.
The female hummingbird builds the world’s smallest bird’s nest (approximately 1.5 inches in diameter, around the size of a walnut!). She weaves it from spiderwebs which allows it to expand as the chicks grow.
Genghis Khan strategically married off his daughters to expand his empire. Genghis Khan only gained his title by the time he reached his forties, at which point he had more than ten children. Khan married his daughters to allied kings, who he would send out to war. His new sons-in-law rarely returned alive, and his daughters took control of their new kingdoms for Khan.