The cube went through the glass. Effective trick and its solution

EFFECTIVE FOCUSES AND THEIR CLUES
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The cube went through the glass. Focus secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Focus Description:

On the table there is a cube, two boxes without a bottom and a lid, a Plexiglas plate and a magic wand. You give the audience a plate and a cube - let them examine them, and the cube will be marked with a pencil. Then you pass the cube through one of the boxes, put this box on the table and cover with a plate. Put the second box on the plate. Now put a cube in the top box. You make magical passes over the boxes and immediately lift the top box - it is empty. Then lift up the bottom box. The same cube that the audience marked remains on the table. How did the cube "pass" through the plate?

Focus secret:

You have two cardboard cubes. One is ordinary, but the other has a secret: it does not have a bottom edge, and the top one can recline. Two paper boxes without a lid and a bottom wide enough for the cubes to pass freely. In one box, the bottom edges are bent inward by 2 mm. Put the cube in a box that does not have folded edges. The bottom of the cube - the one without the edge - should be at the bottom of the box. Put the box with the cube on the table. Place a second box next to it - its bottom with curved edges should be at the top.

Give the audience a cube that is on the table, let them make a mark on it. Put it on the table, and show the audience an empty box, turning it upside down with curved edges towards the audience. With the opposite opening, put the box on the cube - demonstrate that the cube easily enters it. Lift the box again and place it on the table.

Take the cube in your right hand, put it on top of another box, pinch the cube in the box with the fingers of your left hand and immediately lift it up. A cube with a secret remains on the table. Take it with your right hand. Place the box that you continue to hold with your left hand on the table and remove your hand. The cube will go down. Now put the secret cube on the table - missing face down. Put a plate on a box with an ordinary cube. Place the second box on top with the side where the edges are folded. With the words "And now we put the marked cube in the top box," lower the secret cube.

Raise the top box. The secret cube is held by the folded edges. Pass the magic wand through the box from below - it will flip the top face of the secret cube onto the inner wall of the box. Show the box to the audience: everyone is sure that it is empty. From the second box, viewers can remove the plate - there is a marked cube in it.

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DC-DC module Texas Instruments TPSM84209 18.06.2018

Texas Instruments has released a new TPSM84209 miniature DC-DC power supply module with an input voltage of up to 28 volts at a load current of up to 2,5 A. The built-in shielded power choke reduces electromagnetic radiation (complies with EN55011). At the same time, operating at a high frequency (750 kHz), the module has dimensions of only 4,0 x 4,5 x 2,0 mm.

To organize power based on the TPSM84209, you only need filter capacitors at the input and output and a resistive feedback divider (setting the output voltage in the range from 1 to 6 volts).

The converter has an efficiency of 91% at a load current of 1,5 A. At low load, high efficiency is maintained by an advanced Eco-mode. The module has built-in protection against overcurrent (Hiccup Mode) and overheating by temperature.

Technical specifications:

Input voltage range 4,5...28 V;
The output voltage is adjustable in the range of 1,2...6,0 V;
Rated output current - up to 2,5 A;
Operating temperature range -40...+85°С;
Improved thermal resistance - 29,5°C/W;
Miniature case B3QFN measuring 4,0x4,5x2,0 mm.

Typical applications:

Industrial electronics;
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