10 kinds of 'miracle' materials challenge all laws of physics

Freezing at high temperatures, "transforming" from gaseous form to solid, changing shape, . these irrational phenomena seem to appear only in fictional films that have appeared in real life. real thanks to the "witch's" hand of scientists.

Let's find out what these "smart, supernatural" materials can do such paradoxical things.

1. Hydrophobic coating

Hydrophobic coating is also called waterproof nano coating . This reflective coating surface has outstanding performance in waterproofing some types of liquids, especially water. In addition, this coating has the ability to resist scratching, adhesion and easy cleaning.

Currently, two types of titanium nanoparticles and silicon dioxide constitute the hydrophobic coating still widely used in the form of gel and spray in the manufacture of footwear, apparel, dining table center, especially it is used used to clean the ocean.

2. The metal melts

The metal melts in the laboratory or at the ideal temperature is natural. But metal melting at room temperature is a completely strange thing and it seems ridiculous.

It is Gallium , a weak, white silver and especially melting at 29 degrees Celsius to form a silver liquid. This is an element not found in nature, we can only obtain it when fusing ore containing it.

Gallium is used to make compounds such as gallium arsenide and gallium nitride used as semiconductors in light-emitting diodes.

Metal Gallium video melts when in human hands.

3. Solid "floating" on the gas

Hexafluoride , also known as SF6 gas , is a non-toxic, colorless, odorless gas, which is 5 times heavier than air.

You will enjoy a wonderful "magic trick" if you drop some small items into the SF6 gas container, they will float like a "miracle".

When absorbing Hexafluoride, the environment in your larynx is changed, sound waves are slower and slower, the sound frequency decreases, making your voice drown.

4. Explosive powder

Fulminate silver and nitrogen triiodide (NI3) are two powerful explosives, which require only a slight friction to cause danger when transported. In particular, when they catch up, there will appear a bunch of colorful smoke rising up.

5. "Smart" wood

Wood is a physical material that is difficult to create curves and complex shapes. In fact to bend wood with traditional techniques ask many complex devices.

Experts from the Massachusetts Institute of Science have invented a flat sheet containing wood grain that can bend in a certain shape when imbued with water from 4D printing technology.

6. Metal knows "remember"

Remember that special abilities are only available in animals, but there is a strange metal that "remembers" not inferior to them. This incredible thing is true for objects made of nitinol alloy.

When bent, spiraled or knotted, this type of alloy "remembers" the original shape and returns to this state "as if nothing happened".

The video introduces the "remember" ability of a type of alloy.

7. Hot stone

You might wonder when you think the stone is "hot"?

The sodium acetate active ingredient, is the answer to this miraculous phenomenon. Just a very small impact on this active substance, they will transform into liquid into crystals.

Compared to their external appearance, they are no different from ordinary water that makes us indistinguishable. But inside that liquid is very warm. Thanks to this special feature, sodium acetate active substance is often used as a heating pad, for heating without burning fire in low temperature places and is often carried with people.

8. SAC, self-patching material when torn

US scientists have successfully created a new adaptive material called SAC with half-liquid properties, half a solid that can be patched itself when torn and returns the original shape after deformation. What made this miracle?

These are "chicks" that contain self-sustaining bacteria that survive by healing themselves after being injured.

This magic material has been used in construction materials, cell phone covers, and medical uses.

9. Elastic materials

This magical material is a type of hydrogel created by engineers at Harvard University (USA). It has a high durability, high elasticity to a record in the material world.

This new material is used to improve the performance of products made from hydrogel, such as artificial tissue frames and soft contact lenses.

10. Aerogel - the world's lightest solid material

Finding materials that are cheaper, lighter, more durable, more optimal, . to apply in life is the long-term desire of people.
Samuel Kistler (1900-1975), an American professor of chemistry found the lightest ever material called Aerogel. This is an astonishing, outstanding achievement that changes people's lives.

This material is hard, transparent, good in heat and does not burn. The most striking feature is that it is 1.5 times more airborne, but an object made of Aerogel has the ability to "carry" another object weighing 500 to 4,000 times its weight.