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  • welcome to TTI and welcome to a whole new world of science today we're going

  • to explore the seven most unique materials that you would think would

  • have to be from the world of science fiction but stay tuned because we're

  • going to run where the science behind So my friend sit back relax and enjoy

  • the video number seven ultra hydrophobic material generally there is some

  • interaction between solid and liquid but it's difficult to imagine these unique

  • tiny drops that are unable to wet the surfaces of material science has made

  • some great progress in recent decades in the field of hydrophobicity and opening

  • a wide range of application

  • the hydrophobic surface is based on the Lotus effect this effect was discovered

  • in the 1970s from the microscopic observations of the natural hydrophobic

  • properties of the surface of a lotus leaf the Lotus plant is comprised of an

  • adhesive nonpolar and wax-like substance which is what causes the Lotus effect or

  • hydrophobicity which is featured by the lotus flower which always appears clean

  • despite growing in muddy areas

  • research in this field is very advanced and focused on finding a material with

  • the highest level of water repellency to achieve a material extremely water

  • repellent which would be a huge help for many industrial fields this is a live

  • demo of a hydrophobic surface it's water repellency is investigated by simply

  • insulating it and dipping it in water the insulated device is protected by

  • water damage which we extremely love for our smartphones during the rain in

  • addition your walls can be protected from any dirt after being coated with

  • this magic materials

  • number six triiodide nitrogen triiodide is one of the chemical compounds which

  • is highly unstable oil it can be detonated by contact or anybody labels

  • nitrogen triiodide is the molecule consisting of single nitrogen atom which

  • is bonded by three iodine atoms it's structure is similar to a pyramid with

  • nitrogen at the tip and iodine is much larger than those of nitrogen telling

  • each other you might have heard that nitroglycerin which is another type of

  • contact explosive can go off when you hit it with a hammer while iodide with

  • its ammonia should be kept in moist conditions in a dark place where it is

  • stable but if it's sufficiently dried at the right moment it can blow up from

  • just the slightest disturbance this explosion releases a purple iodine vapor

  • which is irritating and can actually be toxic with extended exposure

  • in fact on April 1st it earned the credit for being a highly explosive

  • substance sharing the same core as the famous nitroglycerin number 5 hydrogel

  • hydrogel is a gel polymer able to absorb water 30 to 60 times its own volume and

  • it's able to change its size under the influence of temperature it's composed

  • of small white crystals that are able to absorb a lot of water

  • the total absorbency and swelling capacity are controlled by the type and

  • degree of cross linkers used to make the gel thanks to its amazing water

  • absorption capacity it's used in greenhouses and agricultural nurseries

  • to retain water and moisture in soil for a much longer time in recent years the

  • hydrogel has been used as a single plant substrate this product is also getting

  • attention in the field of decorative ornamentation indoors

  • the material also is commonly used for medical purposes for tissue engineering

  • and in sustained-release systems of medication number four nitinol nitinol

  • is composed of nickel and titanium in almost equal proportions it has the

  • special ability to rebound to its original form even after you mold it

  • into different shapes a phenomenon called the memory effect which is driven

  • by heat exchanges it is able to repeat this process many times over without

  • losing the ability to regain its original shape this material has a wide

  • range of applications in the fields of electronics and mechanics it can also be

  • used in smartphones robotics and medical industries development and continuation

  • of this material is very expensive but this problem can be solved by the mass

  • production of the material in the coming years number three metal gallium gallium

  • metal is one of the least known in the scientific field this strange metal is

  • very mysterious and difficult to understand for members of the scientific

  • community gallium is a soft metal which is a brittle solid at low temperatures

  • and liquid at temperatures greater than twenty nine point seven six degrees

  • Celsius if you keep it in the palm of your hand for just a few minutes your

  • body heat will cause the solid metal to gradually turn to a liquid gallium has

  • the same metallic color in both solid and liquid forms upon solidification

  • into a mold it becomes just like this coin this metal is very cool because

  • it's a non-toxic material but it's certainly not cheap one kilogram of this

  • metal cost three thousand dollars which is an extremely high price that goes

  • showed just how much it must cost to extract it number two

  • aerogel also known as frozen smoke aerogel is a broad term used to talk

  • about a special group of materials they have been used since the early 1960s in

  • space travel but scientists are now finding multiple uses thanks to its

  • properties the aerogel is the lightest solid material that exists today its

  • chemical structure is similar to glass but its density is a thousand times

  • lower and it's only three times as dense as air because it contains 99% air

  • ingredients with silica gel despite its low weight this material is very strong

  • it has heat insulation properties that have been exploited by NASA engineers to

  • the fullest nasa use this material in several of its spacecraft to provide

  • heat protection from the sun today the aerogel is used in the detection of

  • nuclear radiation absorption of long-lived nuclear waste thermal

  • insulation and detection of harmful microorganisms number one magnetic

  • Thinking Putty this stuff is pretty cool to play with this magnetic monster is so

  • amazing and full of fun it can be created by simply adding ferric iron

  • oxide powder to regular silly putty and then the putty becomes ferromagnetic

  • only strong magnets that are also ferromagnetic will be engulfed by this

  • tiny Magnum monster if you place a Ferro magnet in the magnetic field it will

  • experience a force that pulls into a region of stronger magnetic strength

  • thank you for watching I hope you liked it now calmy guys which one of these

  • materials do you find the most amazing and why let me know in the comments and

  • if you're new here then feel free to subscribe I'll catch you in the next

  • video peace

welcome to TTI and welcome to a whole new world of science today we're going

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