- Mosquitoes dislike citronella because it irritates their feet.
- In 2015, the Oxford word of the year was the tears of joy emoji.
- 12 + 3 - 4 + 5 + 67 + 8 + 9 = 100.
- The Atlantic Ocean is saltier than the Pacific.
- One is the only number with letters in reverse alphabetical order.
- Italian mathematician Leonardo of Pisa (better known as Fibonacci) lived between the years 1170 and 1250 and is best known today for Fibonacci numbers, the number sequence named after him. Fibonacci introduced the number sequence to Western Europe in his book 'Liber Abaci' after they had been described earlier by Indian mathematicians.
- A blue whale can weigh as much as 30 elephants and as long as 3 large tour buses.
- Much of the work done by Leibniz and Newton is based on theories by French philosopher Rene Descartes. As well as his many contributions to philosophy, Descartes also had a huge impact on mathematics, creating analytical geometry, developing a system that describes geometry using algebra, contributing to optics and much more.
- Hippophobia is the fear of horses.
- The algae found in the world's oceans produces nearly 50% of the world's oxygen.
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