An interesting optical illusion created with the help of ordinary candles

You might not believe us, but all 12 of these orbs are the same shade of beige.

Shrinking the image exaggerates this illusion, while zooming in minimizes the effect, according to David Novick, the creator of the image and a professor of engineering education and leadership at the University of Texas at El Paso.

Amazing cloud of starlings

Such synchronous movement of a large flock is called murmuration, it helps birds to defend themselves against predators.

The hugging teeth of a glycera americana (American bloodworm)

The brain of Albert Einstein 🧠

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.

Behind the scenes

This robot arm art piece is programmed to try to contain the hydraulic fluid that’s constantly leaking out and required to keep itself running. if too much escapes, it will die so it's desperately trying to pull it back to continue to fight for another day.

And you can have fun with physics, too.

Bursera graveolens.

The fire creates a mesmerizing "mini sunset" effect on it

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.

In Switzerland, scientists used a high-speed camera to recreate how light reflects off mirrors.

An example of how a phenakistiscope works — 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 — persistence or inertia of vision.

Triboelectric effect

This experiment demonstrates the appearance of electric charges in the material due to friction.

Thunderball⚡️

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".

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.

A prime example of the importance of correct weighting.

Queen Genepil was the last queen of Mongolia. She was executed in May, 1938 shot by Russian troops as part of the Stalinist repressions in Mongolia. The Star Wars character, Queen Amidala, took inspiration from her.

Pickles emit a yellow light when electricity passes through them, thanks to their high sodium content.