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Stubborn candle. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

Put four white cylinders of the same height on top of each other. A "candle" was formed. Light it from above (Fig. 1). After that, starting from the top, knock out the cylinders to the side - one at a time. When the top one flies off, the candle will continue to burn, but on the cylinder below. The next falls, and the candle continues to burn.

Focus Stubborn Candle

Focus secret:

What's the secret? All wooden cylinders have a narrow vertical slot on one side. It reaches exactly to the center (Fig. 2). When the cylinders are folded, the slot should be on the same straight line, on the opposite side from the audience. A "secret" wick is inserted in the center of the upper cylinder. It is made of thin wire and is slightly longer than one cylinder in size.

The top of the wick has a small round plate that prevents the wick from falling down (Fig. 3). A piece of cotton wool soaked in kerosene is wound on the tip of the wick. When the upper cylinder pops up after a finger strike to the side, the wick, dropping lower, will occupy the next cylinder. And the "candle" will continue to burn.

Author: V.Postolaty

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The existence of a time loop has been proven 28.08.2018

Scientists at the University of Queensland in Australia have demonstrated that, in terms of quantum mechanics, two different events can precede each other at the same time. Violation of the causal relationship was demonstrated using the polarization of photons in the interferometer.

In the course of the study, physicists passed photons through an interferometer - a device with which a beam of electromagnetic radiation is divided into several beams going through different optical paths (A and B). Eventually, the two beams recombine and overlap each other, resulting in interference. The setup was assembled in such a way that, with vertical polarization, the photon will choose the left path, then return back and hit the right side of the interferometer. With horizontal polarization, the particle first goes along the right path, and then along the left.

However, with diagonal polarization, the quantum wave describing the position of the photon "splits", moving along both paths simultaneously. The vertically and horizontally polarized components first go each along their own path, return back, and switch to an adjacent path. Thus, both components go along each path at once, that is, the photon seems to go along both paths at the same time. At the end of each path, the photon splits again, with one component coming back and the other leaving the setup.

In this case, it is very difficult to determine which event precedes the other: either the return of the polarized components to the beginning of the paths creates the appearance of the photon passing along A and B simultaneously (the photon passes first along one path, and then along the other), or the splitting of the "forked" photon into the end of each of the paths causes a one-time return of the components to the beginning of each path (and then the photon actually passes along both paths simultaneously).

To solve this problem, scientists conducted a series of experiments, each time inserting additional lenses into the installation, which change the spatial distribution of the light beam. This allows you to change the polarization of the photon at the moment when the quantum waves are again superimposed on each other. If each photon in the beam first traveled one path and then another, then the resulting polarization of the photon must correspond to a certain value. However, the researchers found that it was impossible to determine in the experiment which of the events actually causes the other. In other words, both processes are cause and effect of each other.

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