Fun Science

That's How the Bendable Screens Look at the Assembly Stage No one knows yet how long it will last and how reliable it is, but it looks spectacular.

Fire ➕ Hydrogen - 👆🏻 Hydrogen gas is lighter than air and can be ignited by a flame or spark, resulting in a spectacular explosion. By the way, that’s the reason why helium, not hydrogen, is more often used to fill balloons.

Elephant Toothpaste An experiment demonstrating a multiple increase in the volume of a substance as a result of a chemical reaction. It is often performed by schools (of course, not on the same scale as the video). Such an experiment requires very few readily available reagents!

Robo-Dogs If you think robo-dogs are clumsy and slow, here's a study where scientists have trained an algorithm for certain actions, using a neural network and without any human control. Such a system allows the robo-dog to autonomously adjust different movement skills in a variety of conditions (soft surface, slippery, etc.). Also, the robot itself can get up after falling on its back.

Startling Mechanism It was invented by Brooks Walker, an engineer from San Francisco. It never made it to the masses; he only sold a few dozen of his systems.

Combinations of Magnetic Levitation and Electromagnetic Induction 👆🏻 💡 Magnetic levitation is a technology, a method of lifting an object using a magnetic field alone. Magnetic pressure is used to compensate for the acceleration of free fall or any other accelerations. 💡 Electromagnetic induction is the phenomenon of electric current, electric field or electric polarization when the magnetic field changes over time or when a material medium moves in a magnetic field.

Video Drone for Finding Fish Scientific progress has made its way to fishing. The Chinese company Chasing Innovation, a manufacturer of underwater drones, presented its next novelty - the Fish Finder Chasing F1 drone for fishermen. It is a tiny buoy-shaped vessel controlled via Wi-Fi at a distance of up to 30 meters using a mobile app.

Compact MRI Remember how cumbersome these machines used to look? Well, that will slowly become a thing of the past! We successfully completed the second phase of the POC MRI testing, the world's first mobile MRI! The device was used in the ICU in the "dirty zone" with COVID-19 patients who were diagnosed with acute neurological disorders. Best of all, the MRI machine was simply brought there as an ordinary wheelchair, so compact and handy.

Leadwood A cleaned plate of galvanized tin is immersed in a solution consisting of lead acetate and water. The surface is covered with small, dark gray crystals of lead with a metallic luster, fused together.

Somebody did Well in High-School Physics👆🏻 Reduce the air drag area and get a speed increase due to aerodynamics. Point out that it's a fixed gear bike. There is no freewheel on the fixies and the pedals are constantly spinning if the rear wheel is in motion. Also, no brakes are there. When you descend a hill, as in the gif, and let go of the pedals, the cyclist makes them spin freely. Racers with their feet on the pedals just cannot be as fast spinning them, so the cyclist in the swallow position gets an extra advantage.

Why do two halves of grapes create such a "fire show" in the microwave? Grapes direct microwave energy to the same spot, creating an electromagnetic field between them. As this electromagnetic point builds up energy, it overloads nearby electrolytes, causing a jet of plasma to rise into the air. No need to repeat it at home😅

Fabric that Recognizes Objects 💡 Scientists from Dartmouth College, in collaboration with Microsoft, have developed a way for recognizing contact objects to create interactive fabrics. The authors named the new technology Capacitivo and have already found how to apply it, namely as a tablecloth that can come up with recipes itself!!! The fabric looks like a grid of electrodes attached to a textile backing. Built-in sensors study the electrical capacitance of an object, and then, transmit that data to the device. The fabric uses the principle of a touch screen that reads your finger. After several tests, scientists found that the system was 94.5% accurate. And in the case of liquids, it was 96% accurate.

Dispersion of Light This is a set of phenomena caused by the dependence of the absolute index of refraction of matter on the frequency (or wavelength) of light (frequency dispersion), or, similarly, the dependence of the phase velocity of light in matter on the frequency (or wavelength).

The world is headed toward a shift in learning to an "on-demand" format by 2050 Universities as they currently stand would cease to exist and would be transformed into spaces for creativity and applied learning. They would become a kind of incubators where students with different majors could attend interdisciplinary classes together to solve practical problems of the real world and conduct research on important topics. University entry would be based on the topic of the research paper and the anticipated methods of achieving the goals. The grading system would become optional, as on-demand learning would allow effortless learning from a variety of sources: e-courses, peer learning in a virtual environment, learning with a mentor in a digital world, and e-textbooks.

The ISS carries a hard drive called the Immortality Drive. It contains the DNA of people like Lance Armstrong and Stephen Hawking in case of worldwide disaster.

An attempt to combine the human eye with the artificial intelligence of a machine.

"Music" of the Common Spider Web Spider webs are not a flat network with radial architecture; they are three-dimensional. What's more, different kinds of spiders build their networks via distinct schemes. Each thread in the web generates its own type of vibration, which allows the spider to distinguish the signal of the caught prey from the wind or a kindred visit.

The Weissenberg Effect An effect that is typical of some non-Newtonian fluids, such as liquid polymer solutions. Instead of being thrown outward, the chain of polymers is wound around the rod.

Key parts of synthetic brain cells that can hold memories have been created This may lead to the design of computers analogous to the human brain! At this point, artificial neurons can produce the same electrical signals that real neurons use to transmit information in the brain. With ions sent through thin jets of water that imitate real ion channels, the researchers were able to produce these electrical bursts, Science reports.

Orange zest is full of juice and essential oils, and these oils burn. Looks stunning!