- The croissant was invented in Austria.
- An average cumulus cloud weighs more than 70 adult T-Rexes.
- Finland has the largest number of islands in the world (over 179,550).
- Sharks never stop moving even when they sleep or rest.
- A blue whale's heart beats just twice a minute when it dives.
- A blue whale can weigh as much as 30 elephants and as long as 3 large tour buses.
- Blue flames are the hottest, reaching temps up to 3,000 degrees Celsius.
- People in Iceland read more books per capita than any other country.
- German mathematician Gottfried Leibniz lived between 1646 and 1716, developing important calculus concepts and mathematical notation practices.
- Mosquitoes dislike citronella because it irritates their feet.
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