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The puzzle with nails
(11) | 22/05/2022 | Translate: The purpose of this puzzle, is to balance six nails on top of a nail that is attached to a base.
The puzzle with the lost square The lost square puzzle is a visual illusion in which a triangle is reconstructed with 4 internal pieces, with a small square missing from the inside. In fact, there is a slight difference in the angle of the triangle from the top to the base in the second figure. That is, the area of the triangle in the second shape is larger. This small surface difference is equivalent to the small empty square.- How to properly organize your nails Based on intuition, one can think that this is a video that plays In reverse, but this is not the case. When energy is added to the system shaking the bucket, nails begin to act like a liquid, filling the natural shape provided in their container. Since they don't receive enough energy to flee in all directions, frictional forces and weight decrease the energy of the system, bringing it to a lower power state and higher entropy, which is their arrangement within the container.
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At that time, the simulator was controlled by a bulky 1970s computer, but the museum was unable to put the parts together and rebuild this piece when they rebuilt the device. So now the emulator is controlled by a Raspberry Pi. The tank's tiny portholes are connected to a camera mounted on a miniature model. The camera is moved by a robotic arm based on the movements the user makes in the simulator.
- Bond strength in nailing two pieces of wood What is the best method of joining two pieces of wood with nails to give us the strongest connection; The answer is given by a simple test.
- Accident in group base jumping from a bridge On Saturday October 15, 2022 during the annual Bridge Day event held near Fayetteville, West Virginia, a group base skydive from the New River Gorge Bridge didn't go as planned. One of the jumpers crashed into the deployed parachute of a second, causing his fall to accelerate before landing in the water. Fortunately, No one was injured.