1. Atomiser : Don't be afraid seeing the name. It's the common sprayer we use in our garden to spray pesticides.
When we press the sprayer the air in the horizontal tube moves fastly. As the velocity increses pressure decreses. so in the horizontal tube pressure is less where as in the down portion pressure is more so that the liquid is lifted up and flows out of the tube.
2. Airoplane : The structure of airoplane (called as airofoil) is in such a way that velocity of air above the wings are greater so that pressure is decresed. so that there is a net upward puush that holds airoplane in the sky.
3. When there is a heavy storm it's not safe to close the windows and doors of the house( not the houses having concrete roof.) bcoz the velocity of air above th roof is more when compared to velocity below the roof. So pressure is more below the roof and it will result in flying off of roof.
4. If two balls are suspended from a fixed rod if we blew air between them the balls will come closer. bcoz when we blew air the velocity of air between the balls is more . So pressure is less and there is a net inward push.
5. It's dangerous to stand near a fast moving train. bcoz when the train moves fast the velocity of air is more . So pressure is less and the pressure on other side is more so that there is a net forward push which will result accident.
