Fun Science

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 hard truth: US banks are collapsing, European banks are getting closer to collapse. And crypto continues to grow. At the same time, 78% of the population still doesn't know how cryptocurrencies work! And they're losing a cool opportunity to save and grow their savings. Meanwhile, there are plenty of easy ways to learn the basics of crypto. For starters, it's worth signing up for Learncrypto and finding out: - Where does the value of cryptocurrencies come from? - Which coins should NOT be bought by newbies? - 6 ways to lose your savings forever😱 Subscribe, that’s the Financial Literacy BASE in 2023 👉 Learncrypto

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!

Another Way to Eat Less It seems that scientists have invented the most effective device for weight loss, called DentalSlim Diet Control, which literally closes a person's mouth! The device consists of several metal clips with magnets. It is placed on the upper and lower jaw teeth by the dentist. Once the device is triggered, the jaws instantly snap shut, closing the mouth, which can only open 2 millimeters to breathe, speak, drink water, and eat food in liquid form only. Research participants using this device lost an average of 6.36 kg in two weeks!

What's the magic? In order to better examine the effects of pollutants on fish, Taiwanese scientists inserted jellyfish genes into the DNA of koi carps, resulting in these luminous aquarium fish!

How do Water Ripples Appear? The ripples you see on the surface of seas and lakes arise from both the upward force of internal water pressure and the surface tension force. Both forces alternate and lots of ripples form on the water. This resembles the sound wave that occurs in the string of a musical instrument as it's alternately stretched and squeezed.

The mesmerizing fluorescein tornado😍

Cyberpunk is Coming Fox is launching a new music show where onstage will be... Avatars! As the description tells us, the contestants will perform in "the image of their dreams." Everyone will be rocking and singing in a mo-cap suit.

The Speed of Light Clearly 👆🏻 A hypothetical photon wanders from Earth to the Moon.

DNA in the Air Scientists have come up with a way of detecting the tiniest traces of DNA in the air. The discovery, for example, enables studying wild animals, which normally live in hard-to-reach places, deserts, rainforests, caves, etc. Otherwise, it could transform forensic investigations at crime scenes, or on-site processes (rubble, etc.). This is no longer just a theory⚡ The DNA collection technique was tested in a zoo by installing sensitive filters attached to vacuum pumps at 20 points throughout the facility. The equipment appeared so sensitive that it picked up DNA from pets living in the zoo's neighborhood and animals that were food for predators. Though the technique is in the early stages of study, it shows impressive results. No less epic results with human DNA. Exciting prospects are coming up in forensics...

Firecracker Explosion Under Water When you ignite the stuffing of the firecracker – gunpowder – it burns rapidly, thereby generating large amounts of gases and creating excess pressure, which bursts the shell of the firecracker. Thus, an explosion occurs.