The more you learn, the stranger the world seems.
If you read and explore enough, you’ll discover life facts that will shock you and sometimes turn your world upside down.
If you are ready, here are 6 facts everyone should know.
It’s easy to calculate a tip without a calculator.
Assuming you want to tip 20% of your total bill for a good service, move the decimal point to the left and then double that number.
For example, if a bill is for ₱1,032.50, you move the decimal to the left, which gives you 103.25. Double that number and you’ve got ₱206.50 – a 20% of 1,032.50.
You can’t breathe and swallow simultaneously.
This is because the food and fluids we swallow and the air we breathe in both travel down the same part of our throat.
Bananas are curved because they grow towards the sun.
Bananas go through a unique process known as negative geotropism. Instead of continuing to grow towards the ground, they start to turn towards the sun.
The fruit grows against gravity, giving the banana its familiar curved shape.
During your lifetime you will produce enough saliva to fill two swimming pools.
The average mouth produces 1 to 2 liters of saliva or a maximum of 730 liters per year, which helps protect your mouth from germs, over a lifetime – enough to fill two swimming pools!
A day is longer than a year in Venus.
The rotation of Venus is very slow, making a full rotation only every 243 Earth days.
In contrast, the planet goes around the sun once every 225 Earth days, making its year 18 Earth days shorter than its day.
Rats can laugh.
Rats emit high-pitched calls when they’re playing, and even have “tickle skin,” or parts of their body that make them laugh when touched by researchers.
This puts them in a unique category with primates, dogs, and dolphins, the only species known to laugh.
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