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प्रश्न
Can you understand from the movement of the snake - if the air is moving upwards or downwards?
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उत्तर
Yes, we can understand from the movement of the snake whether the air is moving upwards or downwards. If the paper snake moves in a clockwise direction then we can say that the air is moving upwards.
If the paper snake moves in an anticlockwise direction then we can say that the air is moving downwards.
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संबंधित प्रश्न
Fold a piece of cloth 3-4 times. Now bring it close to your mouth and blow hard on it. Did the cloth become warm?
Balishtiye saw that the woodcutter was trying to cool the hot potatoes by blowing on them. What would have happened if he had eaten the potatoes without cooling them?
Take a glass. Bring it near your mouth and blow hard on it. Do this two or three times. Does the glass look hazy?
Put your finger under your nose. Can you feel any air when you breathe out from your nose?
Jump 30 times. Did you feel breathless?
Now again count how many times in one minute you breathed in and out.
We blow to cool hot things as well as to warm them. Give examples of each.
Can you make a mirror hazy in the same way? Can you tell by touching the mirror what made it hazy? Is the air you blew from your mouth dry or wet?
You have all heard the ‘tick tick’ of the clock. Have you seen a doctor using a stethoscope to listen to our chest? What do you think she hears? Where is the sound coming from? Is there a clock inside your chest that keeps ticking away?
Stand with this snake below a fan. Look in which direction it moves. Take this paper snake to different places and observe its movement.
