18 Cool Things Your School Teachers Never Taught You

By Editorial Staff in Facts On 1st February 2017
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#1 Three 90-degree angles in curved space

Now I understand why the earth is round.

#2 This would help you if you ever had trouble with the logic of parallel parking

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#3 Physics is fun

They fire a soccer ball at 50mph with a cannon on a truck driving at 50mph in the other direction.

#4 What happens when you put on sun cream

Artist Thomas Leveritt set up an ultraviolet camera and viewing monitor

To show people what their skin looks like in the Ultraviolet light, when they put on sun cream.

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#5 The difference between Earth’s axial tilts during winter and summer solstices.

Amazing!

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#6 Real life demonstration of Pythagoras’ theorem: a2+b2=c2

Hence proved

a2+b2=c2

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#7 The river changing its course over the years

Unfortunately, this is true.

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#8 Best way to cut the rope

In case you ever find yourself in an emergency, here is a way to cut the rope.

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#9 A slow motion of how dogs actually drink water

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#10 If you are wondering how a key unlocks your door

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#11 How braces change your teeth from crooked to perfect

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#12 What happens when you squeeze an orange peel onto a candle flame

Try it!

#13 That’s why you don’t use water to put out the grease fire.

The grease splatters out into the air and the fire along with it.

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#14 The development of human face in the womb

#15 This is how the cheetahs are perfect runners

They use their tails to reduce inertia every time they have to change direction.

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#16 A male seahorse giving birth to as many as thousand seahorses

Difficult to believe.

#16 A perfect example of total internal reflection

The light gets reflected back into the water because the angle at which it touches the surface of the water is greater than its angle of refraction.

That is how optical fibers work too.

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#18 A very interesting explanation for the value of pi. And that is how pi works

Now I understand why the value of Pie is 3.14.