Invisible Definition and 65 Threads

No, it isn't a new invention, it's an optical illusion. I was discussing a new ductwork design for an existing (recently renovated) building with my boss. I needed to clarify something, so I printed out the attached picture and sketched-in the duct, roughly like I have it sketched in the...

Can an invisible person see? Please explain for me. Thanks

How can one be invisible?? I am working on a science fiction.I am sorry to open such a thread in the general physics section but i thought I could get the maximum possible logic from this section.Its about making someone invisible.What are the faintest possible ways to do that??Please give me...

If an object is incapable of reflecting and absorbing light, our eyes wouldn't be able to see it, correct? Do you think a solid or liquid mass on Earth is capable of resisting light absorption and reflection to a degree that it's entirely unseen (therefore achieving true invisiblity)? Do you...

-------------------------------------------------------------------------------- This was made by a scientist in japan. http://news.bbc.co.uk/cbbcnews/hi/s...000/2730639.stm And they improved it. (Go down to see new version) http://projects.star.t.u-tokyo.ac.j...EDIA/xv/oc.html...

Is it possible to see the radio spectra, X-ray, or microwave etc like birds can see the UV spectra? If so what might/does it look like? Thanks

Hi folks. I'm a novelist working on a story that could use a physicist's help. Unfortunately, I know nothing about physics (I was an English major, as you might expect)! One of the characters in my new story has the ability to turn invisible. I would like to have a plausible explanation...

This has been bugging me for some time and I'd love to get a clearer picture. We know that photos from the various moon missions show a black sky without stars, and that has been explained to me before as resulting from the fact that those photos were taken in broad daylight, plus maybe the...

From The Daily Telegraph I find this most amusing... GO CONSERVATIVES!

I have a question about radio frequency blocking. I recently purchased one of those invisible dog fences to keep the new puppy from becoming roadkill. Pretty basic install except when it came to "blanking" out an area for the dog to go into and out of the area. The instructions said to run two...

Say we have one weight floating in free space - vacuum and another weight in the same space on total distance D from the first. I’ll tell you the answer but any way my question for you is: “Is there a lever between the weights”? My answer is yes. Here is how I know it. First I have to find the...

Is that any possible if we be invisible through the genetic modification ?

http://www.newscientist.com/news/news.jsp?id=ns99994288

This topic has interested me ever since I read H. G. Wells' The Invisible Man: How can you make someone truly invisible? Any ideas are welcome, as I have never thought of a scientifically (or even logically) feasible way.

Ive not seen this hanging around here before so i thought i MIGHT bring it up :) how possible would it be to become totally invisible? I knwo there is this stuff about the natural phase (??) of everything, and if the phase can be changed then you become invisible? Is this possible? If so how...