AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
All you have to do is make the light bend around the thing you're hiding. The physics that goes into making a cloaking device is incredibly complex, but the idea behind cloaking is beautifully simple. It only became possible because man-made metamaterials can do things that no natural materials can. Not least of all because some heavy-duty maths had made it seem impossible only a few decades earlier. Finally, metamaterials make for rigid little constructions, so it was more your rigid cloaking containment facility than a Potteresque robe.īut while it wasn't perfect, as first steps go it was phenomenal. And there was a bit of a shadow where the cylinder was, so while you couldn't actually see it, you could see something fishy was going on. It did make the cylinder 'disappear', but only if your eyes register microwaves instead of visible light. But while it was incredible, the first cloak was a bit short of the hype. Journal articles were published and international headlines heralded the age of invisibility cloaks. Physicists stunned the world when they made a metal cylinder disappear by surrounding it with a metamaterial - a new kind of material that makes DNA look under-engineered. But all that gear doesn't exactly make for a subtle or portable disappearance act. Until recently, the best shot at invisibility was with illusions based on mirrors or cameras. You not only have to stop people from seeing the thing itself, you have to make sure they can still see what's behind it - otherwise that big empty gap tends to give the game away. Making something invisible is a big call. Researchers create 3D invisibility cloak, Science Online,.
0 Comments
Read More
Leave a Reply. |