Physical magic knowledge 1. What is the physical knowledge in magic?

1. Accurately grasp the light. There are many stage magic tricks that use the lens to distort the light. And a flat mirror. There is a very common technique, that is, a flat mirror is placed obliquely in a square paper box or carton, and many props can be placed under the mirror, which will be an empty box for the audience.

2. Master mechanics and realize some simple suspension by using the principle of moment balance. Tilt like that.

A large part of the magic show relies on the phenomenon of "anti-physics" to achieve the effect of surprising the audience. The audience thought it impossible from what they had learned before, but the magician did it. That kind of heartfelt joy and surprise can only be achieved by magic. Therefore, magic can only achieve this "anti-physics" effect after further study of physics.

2. Ask for some physical tricks.

Jump coins in the bottle and take out a bottle, explaining that it is empty. He put a little oil on the bottle mouth, and then took a nickel from his pocket and covered it. He dried the bottle on the alcohol lamp and put it back on the table. He rubbed his hands hard for a while, then put them on the water to dry them, and suddenly he grasped the bottle with his hand. The coin on the bottle mouth seems to have been bounced by something and jumped up from the bottle mouth. Slapped on the table with a bang. The secret is actually the phenomenon of "thermal expansion and cold contraction". The air in the bottle will expand when heated. During the performance, the bottle is heated and the hands are warm. When holding a bottle, the heat in your hand can raise the temperature of the air in the bottle and expand its volume, so push it out of the bottle mouth and rush the coins up. The little magician performed another trick similar to "jumping coins in a bottle". Say to everyone: "this glass bottle is elastic, it can be squeezed flat, and the water in the bottle can be squeezed out, just like a rubber bottle." Knock the bottle several times with a wooden stick and make a "clang", which proves that the bottle is glass. Then put down the stick, put your hands together and rub it hard for a while, then hug the bottle and make it look like you are squeezing it hard. Strangely, when he squeezes the bottle hard, the bottle mouth will spray water upwards. Secret magic is also designed according to the principle that objects expand when heated. To perform this magic trick well, you must fill the bottle with water, close the bottle cap and drill a small hole in the bottle cap. After rubbing your hands (preferably baking), hold the bottle tightly. After the water in the bottle is heated and expanded, it will come out of the small hole in the bottle cap. Burn the handkerchief, let the assistant light it with a match and throw it into the air.

Turn off the lights at the same time, and the handkerchief burns in the air. When the fire went out, I turned on the light and saw that the handkerchief was still the same, and it was not burned out.

Before the performance, soak the handkerchief in water, hold it in your hand and then dip it in alcohol. Alcohol burns when it meets fire, so it burns alcohol instead of a handkerchief.

As we all know, anything with holes will leak. Now, however, you will see a thin piece of paper full of holes, which can actually lift one kilogram or even two kilograms of water without leaking.

1. An equipped empty bottle, a piece of paper with many holes punched with a big needle, and a large glass of colored water. 2. During the performance, the big empty bottle is filled with colored water; Cover the bottle with perforated paper, press the paper with your hand, turn the bottle upside down, as shown in the figure, and then gently remove your hand.

The paper still covers the bottle mouth, and water doesn't flow out of the hole. When performing, you should pay attention to the small mouth of the bottle (such as a big mouth bottle and cardboard). The more water you hold, the better the effect.

After pouring the bottle, move your hands slowly and gently to avoid paper leakage or even pouring water out. 3. Explain that tissue paper can hold up the water in the bottle because atmospheric pressure acts on the paper, resulting in upward pulling force.

Water will not leak out from the small holes because water has surface tension, and water forms a water film on the surface of paper, so water will not leak out. This is like an umbrella made of cloth. Although this cloth has many holes, it still won't leak rain.

The drill sleeve holds the table tennis ball that has been wiped for half a minute, and lets go to let the ball fall freely. You will see that the ball didn't fall vertically, but took an arc and even got into your sleeve.

The ball follows the hand. Put the table tennis ball with rubbed hands on the smooth table and approach it with your hands. Look! Table tennis rolls in the direction of the hand. If you move it manually, it will follow.

The match stood upright. Touch a matchstick on the table with a wiped ping-pong ball. Lift it slowly, and the matchstick will raise its head and even stand upright. Rub table tennis for a while, about 1 minute, then hold the ball in your palm, and then start slowly with your palm facing down.

How interesting! Table tennis just rolls slightly in the palm of your hand, but it won't fall off. Note: The above experiment is because gloves and table tennis are charged after friction, so they can attract each other and light and small objects.

Blow off the hat. This is an ancient magic popular in Europe and America. (1) vanity mirrors (60cm*80cm) are arranged vertically and horizontally on the experimental platform.

(2) Prepare students to stand in front of the mirror and watch with their faces facing one end of the mirror every time they enter the room. The teacher went to the other end of the mirror, ordered the students to close their eyes, then put on their hats, put their faces and bodies close to the vertical edge of the mirror, and made a half face (no more, no less! ) Behind the front half of the mirror.

Then let the students open their eyes and look at him in the mirror. (3) The performance teacher said to the students, "Look, I have put my arm out horizontally. Please blow the hat on my head. "

After the students finish blowing, they will see the hat on the teacher's head fly and then fall on his head. (4) The expression of mystery skillfully uses the symmetry of objects and images in plane mirror imaging. The teacher that students see in the mirror is half entity and half image.

In fact, the teacher only stretched out one arm, but what the students saw was that the two arms stretched out horizontally. After the students finished blowing, the teacher raised his hat with one hand behind the mirror. Because the student's face is stuck to the mirror, she can't see the movement, only the hat is blown up by her.

Look at the chicken in the egg. You can use the characteristics of shadows to perform an interesting thing for your partner. Take a piece of paper soaked in oil and stick it on the square hole in the middle of a piece of cardboard to assemble an oiled paper curtain.

Put two lights behind the curtain; Please ask your audience to watch in front of the screen. Now, light a lamp, such as the one on the left.

Between the lighted lamp and the paper curtain, an oval cardboard was added, so the image of an egg appeared on the curtain (the lamp on the right has not been lit yet). Now you can tell your audience that the X-ray machine is about to start, and you can see the inside of the egg … and the chicken! Sure enough, your audience will suddenly see that the edge of the egg seems brighter, but the central part is darker, and you can clearly see the image of a chicken (Figure 84).

In fact, there is not much mystery in this magic. To put it bluntly, it is very simple: in front of the lamp on your right, there is a piece of cardboard with a chicken embryo on it. After lighting this lamp, there is a "chicken" shadow from the right lamp on the oval shadow on the screen, and the chicken shadow is illuminated by the right lamp.

3. What is the physical knowledge in magic?

1. Accurately grasp the light. There are many stage magic tricks that use the lens to distort the light.

And a flat mirror. There is a very common technique, that is, a flat mirror is placed obliquely in a square paper box or carton, and many props can be placed under the mirror, which will be an empty box for the audience. 2. Master mechanics and realize some simple suspension by using the principle of moment balance.

Tilt like that. A large part of the magic show relies on the phenomenon of "anti-physics" to achieve the effect of surprising the audience. The audience thought it impossible from what they had learned before, but the magician did it. That kind of heartfelt joy and surprise can only be achieved by magic.

Therefore, magic can only achieve this "anti-physics" effect after further study of physics.