Fun Science

Test Tube Meat Startup Eat Just has been officially selling chicken meat for several months now, and both stores and restaurants are buying from it. ☝🏻 No chicken was harmed during the meat production process: we are talking about the first industrial producer of "test tube meat": "The idea was ... to start a food company that takes the animal, the live animal, out of the equation of the food system," the founder of startup Eat Just states. And he got it! Like many others, they started with imitating animal food via plant food, but in the end, they managed to fine-tune the process of growing meat from individual cells; the founder admits the hardest and longest part was not the technology, but the administrative procedures for allowing the product to be sold on a wide scale. For now, they succeeded in going all the way in Singapore.

Quantum Stealth is a material that makes the target completely invisible.

Earthquake Resistance Of Buildings Seismically insulated foundation buildings rest on several elastic rubber cylinders. They act like car shock absorbers, turning sharp shocks into a slight vibration.

"Why Don't People Fly?" – a Chinese farmer thought and created a backpack drone that lifts him up several meters. The speed of the machine seems to be decent as well, so over time, when the prototype gets refined, it will be possible to travel long distances.

In The USA, Surgeons Successfully Transplanted A Fully Artificial Heart For The First Time The device was developed by the French company CARMAT. It has four chambers and works from an external power source (it is connected by wires). The name sounds as futuristic as possible: TAH – total artificial heart. TAH was transplanted to a 39-year-old man who suddenly developed heart failure. The heart fully simulates a human heart: it consists of two ventricular chambers and four biological valves, etc. The heart itself is created by the drive fluid the patient carries in a pouch. The patient is stable and under observation at this point. By the way, the man has to carry a bag weighing almost 4 kg with the controller and two batteries, enough for about 4 hours of operation before they need to be recharged. "The heart has already been approved for use in Europe, but it is designed as a temporary solution for people waiting for a real heart transplant, which could potentially affect many lives”.

Think Nothing Beats Amazon's Automated Warehouses? Well, Ocado isn't lagging behind too! The video shows a warehouse in England as large as seven soccer fields. There are rails on the top level, where 2300 robots move along the X- and Y-axes at 14 km per hour, often 5 mm apart. A robot arrives at the right cell, picks up a box and transports it to another cell. On the lower level, other robots with "hands" pack the orders for the boxes. How about that, Jeff Bezos?

Schlieren Method This is a way to observe convection live. In general, this method allows you to see any change in density in transparent environments.

Typical Math Class In Chinese School A teacher uses an interactive whiteboard. The functionality of interactive whiteboards makes it easy to show tutorial content for educational institutions and successfully perform business presentations. In essence, an interactive whiteboard is a large tablet computer.

Phosphorous Sun Combustion reaction of red phosphorus in oxygen forming phosphorus pentoxide: P₄ + 5O₂ = P₄O₁₀.

Toyota has kept its promise and the e-Palette autonomous minibuses were launched at the Tokyo Olympics. A single battery charge has a range of about 150 km. The speed can reach 19 km per hour. However, the bus moves on fixed circular routes in the Olympic Village, isolated from urban transport. Moreover, there is an engineer inside without the steering wheel, but with an emergency stop button.

"Speed Bump" With Non-Newtonian Fluid 👆🏻 The Bumpfree Dynamic Speedbump concept could change drivers' attitude to speed limiters in the future. This device allows motorists driving at an adequate speed to get over the obstacle without interference. However, it will "remind" everyone else of the need to observe the speed limit, creating the feeling that occurs during the crossing of the usual "speed bump", but without impact.

China has released a "smart" voice recorder AI Recorder which translates recorded speech into text, arranges paragraphs and highlights key words. AI Recorder will be available soon for $99.99. The manufacturer describes it as a valuable assistant for journalists, students and entrepreneurs. So how soon will robots replace the majority of professions? Are they starting already? 🤔

Demonstration of the incredible Coanda effect with the example of a ball that does not fall as it 'sticks' to the lower part of the air stream. Physics is a kind of magic indeed!

Skydiver & Raindrop An increase in the resistance to motion along with an increase in velocity causes a steady, regular motion of a body as it falls from a great height in a liquid or gas (e.g. in the atmosphere). Thus, a skydiver can gain speed up to 50 m/s before opening the parachute, and raindrops, depending on their size, reach speeds from 2 to 7 m/s.

Paper airplane and aerodynamics.

People: "All these robots are harmless, the battery runs down in five minutes, why be afraid of them?" Scientists: "The bipedal robot ran five kilometers for the first time – it took 53 minutes and one battery charge to do it" 🤖😳 The Cassie robot was created by students at Oregon State University with one million dollars in grants from the Defense Advanced Research Projects Agency (DARPA) in 2017. The bipedal robot is controlled by a neural network using deep machine learning with reinforcement.

How to make the simplest unipolar motor

Such a beauty appears if you water the screw with ferromagnetic liquid (it is strongly polarizing in the presence of a magnetic field liquid, which contains ferromagnetic nanoparticles).

Robot-drone hybrid can walk, fly, and skateboard Most robots are limited to one type of movement as they can either fly, swim, walk, or ride on the ground. Still these bots may have a better chance of overcoming obstacles if they combine several modes of movement. Standing about 0.8 m tall, LEO moves on three-jointed legs and balances thanks to four propellers on its shoulders, which not only help to correct the position of the body, but also allow it to take off to overcome various obstacles.

Gravity Clock ⏰ The mechanism of such a clock runs by slowly rolling the clock down a special base. It is this movement that provides the energy for the movement of the hour and minute hands.