Why Do We Have Toes On Our Feet?
Our feet carry the weight of our entire body with the half of the toes. Toes help you to balance and carry your weight,your other four carry another quarter, and your heels carry the other half. Be thankful for your funny toes. Without them, you would probably flop right over!
Why Can You See Your Breath When It's Cold Outside?
Your breath is reasonably warm and humid with invisible moisture (water vapour) in it. When this warm moist air meets the cooler air outside the body, the moisture- laden atmosphere from your lungs becomes chilled to the point where the water condenses into a fog or a small white cloud that you can see.The relative humidity, which depends upon water content and temperature, goes to 100 percent. As the breath gets further from the person's face the water content dilutes and the relative humidity goes down and the droplets go back into vapour form.
Why Don't Birds Sitting On Wires Get AN Electric Shock?
An electric current can be very dangerous to a human bodyif it passes through the body to the earth beneath. That is why people were rubbing soles while fixing electrical wires, which insulate the body against the electric curent. Birds sitting on wires are not in contact with the ground and so the circuit of electric current does not complete keeping them safe..
GRAVITY FREE WATER.. (experiment yourself..)
Things You Will Need :-:
1) A glass filled right to the top with water.
2) A piece of cardboard.
1: Put the cardboard over the mouth of the glass making sure that no air bubbles enter the glass as you hold on to the cardboard.
2: Turn the glass upside down (over a sink or outside in a garden)
3: Take away your hand holding the cardboard.
The cardboard and water stays in position. Even though the cup of water is upside down, the water stays in place. this defines gravity.
Why does this happen?
With no air inside the glass, the air pressure from outside the glass is greater than the pressure of the water inside the glass. The extra air pressure manages to hold the card board in place, keeping you dry and your water where it should be, inside the glass.
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