The strangest and craziest materials
SOMETIMES science can be every bit as stupendous and unbelievable as magic, defying our expectations and our perception of reality as we know it.
Often the craziest and most interesting stuff, like the intricacies of quantum physics, is too difficult to comprehend for we mere laymen.
But sometimes science produces results that, while we might not fully understand them, we can at least appreciate how awesome they are.
One of the most apt examples of this comes in the form of bizarre materials.
Hydrophobic materials, as the name implies, repel liquids.
An object coated with the silicon dioxide and titanium spray will defy the behavior you’d normally expect when coming into contact with water and other liquids - even mud.
If you were to wear clothing coated in a hydrophobic spray, someone could douse you with a bucket of water and your clothes will miraculously remain completely dry.
You can check it out here: https://www.youtube.com/ watch?v=BvTkefJHfC0.
Hexafluoride is an invisible gas that behaves like a liquid. You can ‘pour’ it into a container, and even float objects on top of it.
As an added bonus, inhaling hexafluoride deepens your voice dramatically (the opposite effect of helium), so you can sound like Darth Vader.
Check it out here: https:// www.youtube.com/ watch?v=DzLX96VWTkc.
Memory metal, an alloy often comprised of copper, aluminium and nickel or nickel-titanium, has a very special property.
Often manufactured in the form of wire, memory metal can be bent and shaped, just as normal wire can be, but under certain temperatures it will spring back to it’s original shape.
Some memory metal can even be ‘programmed’ in both a hot and cool state, meaning it can take on a distinct, programmable pattern at both temperatures.
Shape-memory alloys have applications in robotics and automotive, aerospace and biomedical industries.
Check it out: https://www.youtube. com/watch?v=JKBM9my5eOA.
When you get a cut or a scrape on your skin, your body kicks in and heals your damaged tissue.
Self-healing polymers act the same way.
Their secret lies in the microcapsules of bacteria contained within them which are activated when damaged, filling cracks in their structure with their own lifesustaining substances.
One day, it’s hoped that these substances will even be used to make road surfaces.
Check it out here: https:// www.youtube.com/ watch?v=1i3yoK0C9Ag.
PHYSICS-SHMISICS: These materials defy normal expected behaviour.