Try a magic trick with a show of glass bottles disappearing with excitement

Many people will "open their mouths" in front of magic to make the glass bottles in this country disappear.

Instructions on how to make magic disappear the glass bottles in the water

To be able to become a magician, many people had to work hard to perform each performance. But do you believe, with the secret below, in a flash - you can also become a true magician with the show: Void the glass bottle in the country.

Will this "magic" display result make you excited?

Great, isn't it? And now you will need to prepare the following items:

1. 1 glass cup and a clear glass bottle.
2. One bottle of Glycerine - an important component of fat. You can buy glycerine easily at pharmacies.

The steps to perform the "magic" screen full of excitement

- First, pour Glycerin about 1/2 cup.

- After that, fill the glycerine into the bottle as shown below.

- And finally, you just put the bottle into the cup is finished.

Surprise.

Why is that?

You must have realized the key issue is that the liquid in the cup is not water but glycerine . However, why can water bottles put in this substance disappear, while not in water?

The reason is because of the light . The speed of light traveling in the air (blue arrow) is faster than when passing through glass walls (red dots) and differs from the rate of water transfer (blue arrow).

Our eyes can see the difference in this speed clearly, as well as the angle of movement of the ray of light. Therefore, you will still see the bottle inside the cup. In addition, the image of the pencil placed behind will also be blurred due to this difference.

However, when placed in glycerin, we can not see the image of the water bottle in the cup, as well as the pencil ball placed behind the cup also becomes clearer.

The reason is because light transmits in glycerine has the same speed as when passing through glass . Therefore, our eyes cannot sense this difference, and glass bottles become invisible.

Take a look at the video below to see more clearly. Note that if you intend to perform this magic show, make sure your audience doesn't know this is glycerine!