Colored bar. Effective trick and its solution

EFFECTIVE FOCUSES AND THEIR CLUES
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Colored bar. Focus secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Focus Description:

The magician shows a dark brown bar to the people. Puts it in a cylinder that has no bottom on either side. You can shake it up a bit. And then he takes out the same bar, of a different color. He does everything in the same way so that the bar turns brown.

Focus secret:

The bar should be cardboard, the cylinder too. When the magician puts the bar in the cylinder, he must fall into another white empty bar (he, as it were, puts on a brown bar - white, with one empty bottom, a paper parallelepiped).

Turns it over while shaking and takes it out, holding it so that a brown bar does not fly out of the "cap". It is the same way and vice versa, only then the magician already takes out the bar and does not hold his “cap” in order to give the bar a “different color”. That's all!

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A device for measuring the gravity of an asteroid 08.06.2023

When ESA's Juventas CubeSat lands on Dimorphos in 2026 to assess the aftermath of last year's spectacular collisions with NASA's DART spacecraft, its Solar System Small Body GRAvimeter (GRASS) instrument directly measures the gravity of the asteroid, which is one in a million.

In September 2022, NASA's Double Asteroid Redirection Test (DART) crashed into Dimorphos orbiting the larger asteroid Didymos as part of an experiment to learn more about how to deflect potentially hazardous celestial bodies before they reach Earth. This was only half the job, because the ongoing ESA Hera mission was tasked with assessing the effects of a space impact.

Part of that effort includes the Juventas CubeSat, roughly the size of two loaves of bread, which will be deployed from the Hera deep space probe and land on Dimorphos. Among a small set of instruments is the GRASS gravimeter, developed by the Royal Belgian Observatory (ROB) in conjunction with the Spanish company EMXYS, which is now completing pre-launch tests at the space agency's Mechanical Systems Laboratory to determine the ability to withstand launch vibration and corrosive environments. space.

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