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When you blow over a strip of paper, the faster-moving air above the paper creates lower pressure than the air below it. This pressure difference causes the paper to rise towards the area of low pressure, demonstrating Bernoulli's principle, which states that as the speed of a fluid (or air) increases, its pressure decreases.
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What happens if you blow between two sheets of paper held with the flat faces parallel to each other?
Blowing between the two sheets of paper creates lower pressure, causing the sheets to move towards each other due to the pressure difference. This is known as the Bernoulli's principle in action.
Why does a sheet of tissue paper rise when you blow air above the tissue paper?
When you blow air above the tissue paper, you create an area of low pressure above the paper due to the Bernoulli principle. This causes the higher air pressure below the tissue paper to push it upward, resulting in the tissue paper rising.
What did Einstein two papers explain?
Einstein's two papers explained the theory of special relativity and the photoelectric effect. The paper on special relativity introduced the concept of space-time and the relationship between space and time, while the paper on the photoelectric effect explained how light behaves as both a wave and a particle.
Why is it difficult to force a crushed paper ball placed at the mouth of a bottle by blowing into it?
It's difficult to force a crushed paper ball into a bottle by blowing into it because as you blow air into the bottle, you are increasing the air pressure within the bottle. This increased pressure pushes against the paper ball and prevents it from being pushed further into the bottle. Additionally, the shape and size of the bottle's opening may also restrict the paper ball from entering.
Who explained how light is radiated in packets of energy called quanta?
Albert Einstein explained how light is radiated in packets of energy called quanta in his paper on the photoelectric effect in 1905. This idea revolutionized the field of physics and laid the groundwork for the development of quantum mechanics.
