Fun Science

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”.

A mixture of cola, toothpaste and hydrogen peroxide creates a light cloud of elephant toothpaste soaring into the sky afterwards. #experiments

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!

Static Discharge Imagine the situation; someone invites you to visit. You come to the door on time, wipe your feet on the mat thoroughly, then touch the brass door handle... and that's when you feel a slight impact. It's a static discharge. Why does this happen? After you had wiped your feet on the mat, your body received a negative electrical charge. Then you touched a negatively charged hand to a positively charged metal object (a door handle in our case) and the electrons transferred from your hand to that object. Such an instantaneous transfer of electrons is called a static discharge. It was precisely at the moment you felt a slight electric shock.

How knowledge of physics and a simple tension on the threads can "break gravity".

CyberDog: Xiaomi First Robotic Dog Does your dog know how to do a backflip? 🤖 Well, Xiaomi dog can. Jetson Xavier NX module from Nvidia, containing 384 CUDA cores, 48 tensor cores, six Carmel processors and two specialized deep learning cores, became the computing center of the robot. The module collects and processes information from 11 sensors. It uses specially designed Xiaomi servos to move, enabling it not only to walk, but also to do backflips and other tricks. In fact, the machine moves at 3.2 meters per second and weighs 3 kilograms. Xiaomi reports that the robot can follow its owner like a real dog. The device also recognizes faces. By the way, the CyberDog can be controlled by voice or through a smartphone app. What do you think, whether the robot is capable of fully replacing a real animal?

A viscoelastic fluid can pour itself, known as the open channel siphon effect.

Ferromagnetic Liquid Ferromagnetic liquids are colloidal systems consisting of nanometer-sized ferromagnetic or ferrimagnetic particles suspended in a carrier fluid, commonly an organic solvent or water.

3D Printed Pizza Chef 3D is a new development of BeeHex 3D printers, initially developed to print food for astronauts. However, the concept has changed as the project progressed, so the printers were redesigned to print pizza. The developers describe the final product as a network of pizzerias, where customers choose their own ingredients for pizza and even watch the process of "cooking-printing".

In spring, Helsinki let an electric, FULL-autonomous sweeper into the streets. Place your bets, in how many years will they appear everywhere?