Gadgetory

ultra hydrophobic material this material is a miracle of physics it can repel all kinds of liquids including oil and mud making it very useful in all areas of human life for example it can be used to protect your clothes the surface of your dishes your shoes and your vehicle's body from mud and mold the materials impermeable effect works thanks to the characteristics of the molecules inside it which try to avoid any contact with water some plants behave in the same way they don't get wet and the drops of water stay on the surface try a dyed one of the most explosive elements on the planet is nitrogen triiodide which looks like a mixture of black and brown crystals of a duct and ammonia despite its innocent appearance this dry mixture is very sensitive and explodes at the slightest contact if you touch the mixture with a wand or drop a balloon on top of it you'll see an explosion accompanied by a purple cloud of vapor because of its instability the material is used in some chemical tricks but it's not something fantastic hydrogel these colored balls at first glance look quite small however immerse them in water wait a little while and you'll see how the hydrogel fills up with moisture and increases in size significantly filling the entire container nowadays this product is actively used in gardening flora culture and landscape design adding it on the ground next to the fertilizer thanks to the hydrogel there is no need to water the plants all the time or worry about its growth developers say it is safe for humans and can work for up to 5 years without having to be changed you can buy the hydrogel at any fertilizer store or order it online listen all this nickel titanium alloy has a characteristic that scientists know as shape-memory if an object made of nitinol for example a clip is deformed it will recover its initial shape when heated to a temperature of 104 degrees Fahrenheit the same thing will happen if you place the object in water in addition nitinol as a resistant and elastic product but unfortunately it is quite expensive and difficult to make nowadays nitinol is used in medicine to hold broken bones gallium gallium is not just another element of the periodic table of elements it's also a methyl that can melt right in your hands its melting temperature it's 86 degrees Fahrenheit and it's heavier than water and has minimal toxicity nowadays this material is used in electronics military industry and medicine although it's not cheap at all in 2005 a tonne of gallium cost 1.2 million dollars aerogel the most solid material on the planet is aerogel so the touch it feels like light foam but solid or fragile expanded polystyrene with a great resistance and low thermal conductivity in spite of that aerogel is a solid with extremely low density it consists of small particles of silicon dioxide cross-linked by pore networks aerogel plates are used in interplanetary stations by NASA for collecting cosmic dust the DES material can be purchased by anyone depending on the size and shape a piece of aerogel that fits in the palm of your hand is somewhere between 25 and 125 dollars magnetic plasticine this substance resembles the common plasticine used by children it can be softened spread and used to create all kinds of figurines if you create a ball it will bounce against the wall or floor like a real ball but the really impressive thing is that if you put a magnet near it the plasticine will approach as if it were alive if you leave the magnet for a long time the material will end up eating the magnet completely this plasticine contains millions of magnetic particles that react to magnetic fields the stronger the magnet nearby the more interesting the reaction of the plasticine using a normal magnet the plasticine will simply be attracted but when interacting with stronger magnets the plasticine can be charged become a magnet and attract small metal objects ferrofluid ferrofluid also known as magnetic fluid is a curious and mysterious substance of dark color composed of magnetic nanoparticles and an extra material that does not allow the particles to fall apart when a magnet is brought closer to the ferrofluid the small particles arranged themselves in lines creating a figure similar to a liquid Hedgehog the more powerful the magnets the more interesting the figure will be this strange substance can be acquired on the Internet but be careful because it can stain things easily meta material scientists from Amsterdam and Tel Aviv created the first programmable mechanical metamaterial it has great resistance flexibility and mechanical memory this kind of meta material can be used in soft robotics and in the creation of medical prosthesis it's also very useful in creating devices that we use every day such as smartphones and watch it non-newtonian fluid this liquid can be created at home using potato starch and water mixed together the main feature of non-newtonian fluids is that they behave differently depending on the pressure force if you hit the liquid surface with your fist it'll feel like a solid and elastic material but if you repeat the movements slowly the liquid will behave normally and you can easily place your hand inside this happens because of the structure of the substance and the bonds between the molecules inside it [Laughter]