Invisibility is Real! It is Simple Too!
Did you ever wonder what it would be like to be invisible? Are you in awe by those who use a cloaking device to infiltrate certain locations during movies? I am sure quite a few people have wondered how it would feel to walk into a room unnoticed, listen to conversations incognito and just plain feel like a superhero.
We have wondered about this! The interesting thing about this idea is that it is possible. The more interesting thing about this idea is that this has been possible for a very long time.
The Invisible man
The invisible man is someone that many people want to be. In fact, these powers would change things dramatically. We could find out secrets and avoid confrontations. Unfortunately, we could also become criminals. For now, however, let’s take a look at how this is done.
Some of the accomplishments of making things invisible to the naked eye have been done with high tech equipment and exotic materials as well. This is not necessary.
Basically, becoming invisible is not as hard or expensive as it may seem. To understand how to do this, you must first understand the process. The process seems and sounds very simple.
At the University of Rochester, John Howell, professor of Physics, and graduate student Joseph Choi developed a standard procedure for cloaking. Making objects invisible is accomplished with lenses-four of them, to be exact.
These lenses keep the object hidden as the viewer steps back to a certain distance, thus the object disappears. This method is not accomplished through magic, at least not with parlor tricks. This feat is made possible by simply re-directing light around something, making it appear as if it was not even there.
This process can also produce multi-directional cloaking. This is accomplished by using On/Off patterns to gain minimum information about directions and positions without affecting the momentum of the photons passing through the lenses.
It may sound confusing, but trust me, it works in a very simple and inexpensive format. You could almost try this at home!
Since Science fiction has made the cloaking topic very popular, we could at least try to make it a fact. I think, this has already been done. With a bit of tweaking here and there, cloaking will become as common as catching a flight from state to state. This makes us wonder what will happen next, doesn’t it?
Image credit: University of Rochester
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