Physics around us applies to your everyday life. Often, interesting facts about physics are related even to ordinary things, so we just don’t notice it.
1. Probably, one of the first human inventions to break the sound barrier is the whip. Clicking a whip is a sound that occurs when it overcomes the tip of the speed of sound because it moves so fast, it creates a sonic boom.
2. When boiling, the water molecules in the kettle move at a speed of about 2340 kilometers per hour, which is almost twice the speed of sound in the air.
3. The height of the Eiffel Tower depends on the weather. Studies have found that the height of the tower varies by more than ten centimeters. When the weather is hot the tower is grown and shrinks when it’s cold.
4. During a high-powered ground-based nuclear explosion, near the epicenter can form a lightning discharges. However, unlike the thunderstorms, these discharges originate from the earth and rise upwards.
5. At the edge of the needle of modern sewing machines, a pressure equal to 5 thousand atmospheres.
6. When driving at 100 km/h, cars use more than half of the fuel only to overcome air resistance.
7. Today, in the world studied more than twenty thousand fish species, three hundred of them can generate electricity in their bodies. For example, electric rays can generate more than four hundred volts.
8. No one can imagine what physical changes will happen on Earth if the atmosphere disappears. First, the temperature will drop to -180 ° C, because of that, all the water will freeze and the land will be covered with ice. There will be complete silence, not only because all animals and plants die, but because sound cannot spread in the empty vacuum of space. The sky will turn black because its color depends on the air and the stars can be seen even in the afternoon.
9. A British physicist, Charles Vernon Boys, has written a book on more than 200 pages about soap bubbles, in which he studied the forces which mold them and their colors.
