The object becomes invisible from low power to high power because the focus of lens are different. So though the image is intensified the rays don't fall on the retina unless the distance is corrected.
If I had the power to become invisible, my name would be Shadowcloak.
If I would be invisible, I will do what ever I want.
No. Consider this. If I give you the power to become invisible. What would you do? Nice things? Hell no.
Any object can absorb light if it didn't the object would be invisible (black)
Lead (Pb - for Plumbum) will block X-rays. It doesn't make things invisible, i.e., if an object is wrapped in Lead, the shape of the object would be visible.
Theoretically if light reflected off you would be same as what it would be if you were not there and shadows did not form you would be invisible. Practically it is impossible.
An invisible person would not be able to see in the traditional sense, as light would pass through their eyes rather than being absorbed to create an image. However, if they were able to manipulate their visibility, they could potentially become visible momentarily to see before turning invisible again.
If I was the 6th Ranger, I would probably say either ability to fly or ability to be invisible.
An icubus cannot actually become invisible, but he can make himself appear invisible to one specific person at a time. An icubus has the purpose of seducing women and would usually find it in his best interest to be visible, on account of their natural good looks. However, in the event he does become invisible, it will be while the intended victim is alone.
As yet, you can't. There are teams working on metamaterials that might have the potential to make an invisibility cloak, but there's nothing known about that might make your body invisible. Of course, if you could become invisible you would also become blind.
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Quite simply, you CAN'T swallow yourself.