- Your small intestine is the largest internal organ in your body.
- Adults laugh only about 15 to 100 times a day, while preschoolers laugh an average of 300 times a day.
- The human body of a 70 kg person contains 0.2mg of gold.
- A lobsters blood is colorless but when exposed to oxygen it turns blue.
- Chinese mathematics developed around the 11th century BC and included important concepts related to negative numbers, decimals, algebra and geometry.
- The word racecar can be spelled the same way backwards.
- Police dogs are trained to respond to commands in foreign languages (usually German or Hungarian).
- A jiffy is an actual time measurement equaling 1/100th of a second.
- Recycling one glass jar saves enough energy to watch TV for 3 hours.
- The US flag has 13 stripes (representing the original 13 states).
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