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A wallet that does not give away things. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

In your hands is a kind of cloth purse, consisting, as it were, of three circles sewn together in the middle.

Ask the audience for a coin or ring for a while, or use your own such item. Put, say, a coin between the wings of the wallet so that it falls inside it and ends up in its compartment. Now pass the wallet to the viewer and invite him to pull a coin out of it. Whatever the viewer tries to do with the wallet, pushing all the available compartments, he will not succeed. All inlets will be firmly and tightly sewn with threads.

Focus secret:

To make a wallet, you will need six black velveteen semi-circles with a diameter of 10-12 cm. Two pairs of semi-circles are sewn into circles with a strong black thread with a seam "over the edge". The third pair is sewn differently. The thread there continuously passes through the entire plane of the material, each time leaving and entering near the edge in the middle.

Focus Wallet that does not give away things

After that, all three circles are folded together and sheathed in a circle with an oblique black (or other) ribbon 2 cm wide.

The secret of the trick lies in the section of the wallet where the thread passes through the entire plane of the material. The thread is located under the material, so it is not visible from the outside. When this compartment is stretched, the two semicircles connected to each other are no different from the other two, sewn in the usual way.

If, turning the wallet slightly towards you so that the viewer does not see this side, take one part of the wallet closer to the middle and stretch it to the sides (along the arrows), it will disperse itself and expose the transverse threads. In this opened space between the threads, a coin is thrown into the wallet. After that, it is worth stretching the material again by the edges, it will close, and the hole will disappear. Now you can safely give the wallet to the viewer.

No matter how the viewer tries to push the doors of this section and others to the sides, nothing will come of it: for him, the semicircles will remain "firmly sewn". And all because the viewer is trying to stretch the double semicircles, squeezing them together with an invisible thread. In this position, it will not allow parts of the wallet to disperse and form a hole.

It will not be difficult for you to remove the coin from the wallet, using exactly the same method as you lowered it into the wallet. Just do not forget to close the parts of the wallet immediately after this.

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Electrogenetic insulin 04.06.2020

The desired level of insulin in the blood can be maintained using an implant that releases the hormone in response to a radio signal.

Normally, insulin levels rise after eating: special cells in the pancreas (beta cells) that synthesize it sense the increase in blood glucose levels and secrete insulin. Body cells receive an insulin signal and begin to actively absorb glucose. But if the cells of the pancreas do not work, if there are few of them, if they died (as in type XNUMX diabetes), then you have to monitor the level of insulin yourself.

The level of insulin should rise in a timely manner, it should not be too little or too much. Regular insulin injections should be done strictly before meals, and in no case should you forget to eat after the injection, otherwise the sugar level will drop very much. However, long-acting insulin preparations have been available for a relatively long time: they do not begin to act immediately, but after an hour, two, or even eight hours, and then such preparations also act for a very long time, up to 30 hours. Insulin is gradually released into the blood, as if simulating the normal functioning of the insulin-synthesizing cells of the pancreas.

Researchers at the ETH Zurich have gone a step further and designed an insulin implant that delivers insulin via a radio signal from the outside. The implant consists of two parts, electronic and cellular. The electronic part is a microcircuit that receives a signal and generates an electrical impulse. Living beta cells sit in the cellular part, which receive an electrical impulse and release insulin in response.

Of course, these cells are not simple, but modified: they synthesize proteins that allow calcium and potassium ions to pass through the membrane. The molecular ion gate senses an electrical impulse, ions begin to move in and out of the cell, and this rearrangement of ions sets off a chain of intracellular signals that reach the insulin gene.

In another version, cells synthesized insulin anyway, accumulating it inside themselves in membrane vesicles - an electrical impulse forced the cell to bring these vesicles to the outer membrane and empty them outward. An article in Science says that the implant worked successfully in type 10 diabetic mice: Insulin concentrations peaked XNUMX minutes after the beep, and blood sugar quickly dropped to normal levels.

Such an implant can be turned on from an application in a smartphone, moreover, the implant itself can be improved so that it senses the level of glucose in the blood, so that it works autonomously, like heart pacemakers. True, the cells in it will still have to be periodically changed, and this procedure obviously should not be complicated and expensive, otherwise the electrogenetic implant will not be able to compete with other insulin agents.

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