Invisibility Shield

Harry Potter’s country men have been working even though Harry is no longer on bookshelves. Aficionados may recall Harry found his invisibility cloak in “Harry Potter and the Philosopher’s Stone,” A group of British nerds claim to have created a mind-blowing invisibility shield to “surprise friends” and “avoid enemies.” The shield is essentially a flat panel that magically hides whoever ducks behind it.  Even more impressive is the fact the device doesn’t need any power. It cleverly works by deflecting light around people using a “precision engineered lens array,” creators “Invisibility Shield Co” say. “Each shield uses a precision engineered lens array to direct much of the light reflected from the subject away from the observer, sending it sideways across the face of the shield to the left and right.”  “Because the lenses in this array are vertically oriented, the vertically oriented strip of light reflected by the standing/crouching subject quickly becomes very diffuse when spread out horizontally on passing through the back of the shield. “

As it enters the array, light hitting the sides is stretched out to cover the entire surface, making the image behind it blurry. Meanwhile, the more central light from behind the shield, where the ‘disappeared’ object is, is reflected back and out the sides. As demonstrated in the video below.

Can the cloaking be perfect? Almost. Any metamaterial absorbs a little bit of light and therefore casts a slight shadow.

Could an actual cloak ever hide a person? Yes, but current designs would work only if you painted yourself all one color. A cloak, which for comfort´s sake needs to be pretty thin, could bend radiation of just a single frequency, so it could only hide an object of one color.

What would the inside of the cloak look like? If a cloak worked over the entire spectrum, the lack of light would make the inside black, and you wouldn´t be able to see outside. No one knows exactly what would happen if you turned on a flashlight inside the cloak.

So far, they’ve made 25 fully functional invisibility shields. You can buy one for $395, you get hold of a full-size shield measuring 37.4in x 25.5in, and should receive it by the end of the year. The shield can almost completely replicate the background, making it only a little blurry. Inventors have also said that the clothes you wear can impact the shield’s effectiveness. “The shield performs at its absolute best when the clothing you are wearing is the same color and slightly lighter or equal to the brightness of the background scenery,” they explain. “The shield still works very well with dark and differently colored clothing against a light background, but this combination makes the face of the shield slightly darker overall relative to the background, than it would be if the holder were wearing light clothing.” If you have money and want to disappear buy it. Look what it did for Harry.

Invisible jokes

How did the doctor cure the invisible man?
He took him to the ICU.

Invisible New York man found dead on the street.
Where do we draw the line?

A psychiatrist’s secretary walked into his study and said, “There’s a gentleman in the waiting room asking to see you. Claims he’s invisible.”
The psychiatrist responded, “Tell him I can’t see him.”

I now identify as invisible.
Although I was born visible, I am now trans-parent. My pronouns are who/where?

April 3rd Birthdays

1987 – Amanda Byrnes, 1971 – Picabo Street, 1992 – Hayley Kiyoke, 1922 – Doris Day

1924 – Marlon Brando, 1961 – Eddie Murphy, 1964 – Nigel Farage, 1930 – Helmut Kohl

Morning Motivator:

Only those who can see the invisible can do the impossible!