- The world's knowledge is growing so fast that 90% of what we will know in 50 years time will be discovered in those 50 years.
- The world's smallest mammal is the bumblebee bat of Thailand.
- Chinese mathematics developed around the 11th century BC and included important concepts related to negative numbers, decimals, algebra and geometry..
- Sea water is approximately 3.5% salt.
- You begin to feel thirsty when your body losses 1% of water.
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