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Amazing cloud of starlings
Such synchronous movement of a large flock is called murmuration, it helps birds to defend themselves against predators.
Such synchronous movement of a large flock is called murmuration, it helps birds to defend themselves against predators.
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The hugging teeth of a glycera americana (American bloodworm)
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The brain of Albert Einstein ๐ง
It was removed within seven and a half hours of his death in 1955, by Pathologist Thomas Stoltz Harvey. Harvey removed and weighed the brain at 1230g, which is less than the average adult male brain (about 1,400 grams). It was then taken to a lab at the University Of Pennsylvania, and dissected into several pieces for further research.
Einstein's brain had a much shorter lateral sulcus that was partially missing. His brain was also 15% wider than the other brains. The thickness of Einstein's cerebral cortex was thinner than the other brains. However, the DENSITY of neurons in Einstein's brain was greater. In other words, Einstein was able to pack more neurons in a given area of cortex. The researchers think that these unique brain characteristics may have allowed better connections between neurons important for math and spatial reasoning.
It was removed within seven and a half hours of his death in 1955, by Pathologist Thomas Stoltz Harvey. Harvey removed and weighed the brain at 1230g, which is less than the average adult male brain (about 1,400 grams). It was then taken to a lab at the University Of Pennsylvania, and dissected into several pieces for further research.
Einstein's brain had a much shorter lateral sulcus that was partially missing. His brain was also 15% wider than the other brains. The thickness of Einstein's cerebral cortex was thinner than the other brains. However, the DENSITY of neurons in Einstein's brain was greater. In other words, Einstein was able to pack more neurons in a given area of cortex. The researchers think that these unique brain characteristics may have allowed better connections between neurons important for math and spatial reasoning.
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Behind the scenes
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And you can have fun with physics, too.
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Bursera graveolens.
The fire creates a mesmerizing "mini sunset" effect on it
The fire creates a mesmerizing "mini sunset" effect on it
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Explosive Boiling
Take a glass of water and heat it in the microwave until the water almost boils. Then take out the glass and put any small object into it, the water will boil when it comes into contact with outside objects.
It's all about the microwave where the water doesn't boil, it's structured. If you heat water on a gas or conventional stove this effect will not happen.
Take a glass of water and heat it in the microwave until the water almost boils. Then take out the glass and put any small object into it, the water will boil when it comes into contact with outside objects.
It's all about the microwave where the water doesn't boil, it's structured. If you heat water on a gas or conventional stove this effect will not happen.
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In Switzerland, scientists used a high-speed camera to recreate how light reflects off mirrors.
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An example of how a phenakistiscope works โ a disc with a bunch of figures (drawings), which, as it rotates, creates the illusion of real movement. The effect is based on a feature of the human eye โ persistence or inertia of vision.
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Triboelectric effect
This experiment demonstrates the appearance of electric charges in the material due to friction.
This experiment demonstrates the appearance of electric charges in the material due to friction.
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Thunderballโก๏ธ
It is called a ball of energy floating in the air in the form of a luminous ball.
There is a theory that this phenomenon is a large drop of liquid atomic hydrogen, which is in an excited unstable state.
It arises as a result of electrolysis of water under the influence of fields and lightning currents. The specific weight of this substance is almost equal to the weight of air, which allows the lightning to "float".
It is called a ball of energy floating in the air in the form of a luminous ball.
There is a theory that this phenomenon is a large drop of liquid atomic hydrogen, which is in an excited unstable state.
It arises as a result of electrolysis of water under the influence of fields and lightning currents. The specific weight of this substance is almost equal to the weight of air, which allows the lightning to "float".
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Bernoulli's principle or how planes take off
It states: an increase in the speed of a fluid occurs simultaneously with a decrease in static pressure or a decrease in the fluid's potential energy.
As it moves, the wing cuts the air and splits it into two streams. The jets of air flowing around the top of the wing move faster than the lower layer, causing the pressure to drop. Below, under the wing, the pressure will be much higher.
When the speed of the airplane increases, so does the difference between the pressures at the top and the bottom of the wing - the airplane acquires lift. It is the high flow pressure on the earth side that allows a multi-ton aircraft to begin its airborne journey.
It states: an increase in the speed of a fluid occurs simultaneously with a decrease in static pressure or a decrease in the fluid's potential energy.
As it moves, the wing cuts the air and splits it into two streams. The jets of air flowing around the top of the wing move faster than the lower layer, causing the pressure to drop. Below, under the wing, the pressure will be much higher.
When the speed of the airplane increases, so does the difference between the pressures at the top and the bottom of the wing - the airplane acquires lift. It is the high flow pressure on the earth side that allows a multi-ton aircraft to begin its airborne journey.
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A prime example of the importance of correct weighting.
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Pickles emit a yellow light when electricity passes through them, thanks to their high sodium content.
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Underwater glass cutting
Scissors make a micro-crack, the capillary effect completes the process by breaking off pieces of glass. The splitting occurs due to the wedging effect of capillary water.
Scissors make a micro-crack, the capillary effect completes the process by breaking off pieces of glass. The splitting occurs due to the wedging effect of capillary water.
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An intriguing experiment with a samurai sword and a Tesla coil.
The Tesla coil or transformer generates a powerful electrical discharge based on the swinging principle. The device features two coils of wire with current flowing at the same frequency and amplifying the electromagnetic field.
Electrons around the transformer seek out a conductor and escape into it, like lightning discharges into a lightning rod.
The Tesla coil or transformer generates a powerful electrical discharge based on the swinging principle. The device features two coils of wire with current flowing at the same frequency and amplifying the electromagnetic field.
Electrons around the transformer seek out a conductor and escape into it, like lightning discharges into a lightning rod.
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