to the geometric center. Effective trick and its solution

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EFFECTIVE FOCUSES AND THEIR CLUES
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to the geometric center. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

The needle finds the center of the geometric figure.

Focus secret:

Draw a geometric shape, such as a triangle, on a small square piece of paper. But draw with a pencil dipped in water. Let the leaf float in the water upside down with the pattern and carefully fill the drawn figure with water. This will not be very difficult, as the wet lines drawn with a wet pencil will serve as the boundaries of the drawing and prevent the water from spreading over these edges.

Focus To Geometric Center

Now take a needle and touch it with its tip to the triangle anywhere so that the needle is immersed in water, but does not touch the paper. Immediately, the sheet will begin to move and will move until the geometric center of the figure is located exactly under the tip of the needle! Here the leaf will stop by itself.

Repeat this trick with different shapes; when the sheet stops, the point of the needle will be above the point of intersection of the diagonals.

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There may be more than a hundred planets in the solar system 27.02.2017

NASA scientists have published a manifesto in which they proposed a new definition of the concept of "planet". If accepted, it would add over a hundred planets to the solar system, including Pluto and our Moon.

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Pluto was decommissioned as a planet in August 2006 and reclassified as a dwarf planet after Caltech astronomer Mike Brown proposed rewriting the definition of planets.

The International Astronomical Union (IAU) has stated that the current definition of a planet in the solar system is: "A celestial body that (a) is in orbit around the Sun, (b) has sufficient mass to become round under its gravitational force, and (c ) has free neighborhoods around its orbit".

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