Mechanical Components Blog Blog

Mechanical Components Blog

The Mechanical Components Blog is the place for conversation and discussion about parts, tools, and hardware such as bearings and bushings, tools and testing, materials and industrial hardware. Here, you'll find everything from application ideas, to news and industry trends, to hot topics and cutting edge innovations.
Previous in Blog: "New" vs Conventional Engineering   Next in Blog: Quality Takes It On The Chin
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
5 comments
Rate Comments: Nested

Now You See Me…

Posted October 01, 2007 8:32 AM

And now you don't. Is it really possible to create a cloaking device? Well, unfortunately the answer is no, but steps have been taken to produce the beginnings of a cloaking device which works in the lab for only certain wavelengths of microwave light. The device uses the science of metamaterials and concentric circles to accomplish the spooky task.

The preceding article is a "sneak peek" from Mechanical Components, a newsletter from GlobalSpec. To stay up-to-date and informed on industry trends, products, and technologies, subscribe to Mechanical Components today.

Reply

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Heart Cooks Brain
Power-User

Join Date: Feb 2007
Location: Midwest United States, Evansville, Indiana 37 N, 87 W
Posts: 104
#1

Re: Now You See Me…

10/02/2007 1:22 AM

check out a company called soldier systems, www.soldiersystems.com, also try Mail Call with R.Lee Ermy, I seen a military device that can make you look like the blurry version of predator. Maybe it is not a real cloak, I don't know but it'll take pictures of what is behind you and project it all over your body including your gas mask and gun. This is probably not the type of cloaking you are talking about but it works and is functional right now.
Reply
G.K.
Guru
Hobbies - Musician - New Member Greece - Member - New Member

Join Date: Mar 2007
Location: Greece / Athens
Posts: 722
Good Answers: 28
#2

Re: Now You See Me…

10/02/2007 7:13 AM

As far as I know, this is accomplished by the means of the so called "plasmons" (which are created on such "metamaterials" I thing)... These "plasmons" are caused by a kind of vibrations of the electrons on the surphase of the material that are produced when the light hits the surphase... And, actually, are a kind of electromagnetic waves that travels on the surphase... The problem with these "surphase waves", though, is that they cannot travel for a sufficient length, e.g. they are attenuated very fast... But it's supposed that if they could travel far enough, around the surphase of a sphere made of metamaterial, they could reproduce the light at the other end... So it is supposed that it is like "the light is travelling around" the sphere, making invisible any object which is located in the centre of this sphere...

__________________
 George
Reply
user-deleted-1105
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16512
Good Answers: 670
#3

Re: Now You See Me…

10/03/2007 1:07 PM

Hmmm.. Let me think about this...

'Cloaking Device'

Just... maybe...

Would

a

Cloak .... do it ?

__________________
 health warning: These posts may contain traces of nut.
Reply
Anonymous Poster
#4
In reply to #3

Re: Now You See Me…

10/04/2007 11:21 AM

The Phillidelphia Experiment was real. It had such instability that they made it top secret and has not been declassified yet. Most classified information has a time line that it goes through where it is no longer classified. That is one project that has not been permitted for going throught the declassification process. We have leaks of information that inspired a movie.

Because of the unpredictability of this experiment Alber Einstien made the comment that man wasn't ready for time travel yet.
Reply
Sparkstation
Guru
New Zealand - Member - Interested in everything- see my Profile please APIX Pilot Plant Design Project - Member - Member Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

Join Date: Nov 2007
Location: Christchurch, (The Garden City), South Island, New Zealand
Posts: 4395
Good Answers: 230
#5

Re: Now You See Me…

11/30/2007 3:22 AM

Some 40 years ago, while tramping and fishing for mountain trout, I came across a reclusive hermit, who was a tinkerer, and lived in a small and isolated cabin in a very remote part of the Southern Alps of New Zealand.

He was an interesting old chap, being then aged around 75+ years old.

He would not let people into his small workshop, saying that the secrets it contained were his.

We did have an interesting afternoon, while he showed me how an invention of his, which enabled him to easily catch fish in mountain streams.

He asked my address, and a few years later, I received a letter from a firm of Lawyers, saying the old man had died, and left me his estate.

A week or so later, a large box arrived

I had an ale or several, in memory of the old man, (please note the empty glass), then opened the box.

It appeared to be empty, then I realised there was a small note tacked onto the inside of the lid.

The small note said: "Thank you for that afternoon, years ago. I had decided to end my lonely life, and you came and listened to me. When you read this, I shall be gone to my eternal reward or otherwise, and I want you to have my greatest invention, lying in the bottom of the box."

There did not appear to be anything in the box, but when I carefully felt along it, there seemed to be something I could not actually see, but it rustled like silk in the evening breeze.

It did appear to be a long overcoat, of some sort, so I put it on, expecting to see what I looked like, while wearing it, in the mirror.

Here is a picture of me wearing that coat surely the best invention, and final bequest, from the old hermit......

__________________
 "The number of inventions increases faster than the need for them at the time" - SparkY
Reply Off Topic (Score 5)
Reply to Blog Entry
Have a Different Question?
5 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); G.K. (1); Heart Cooks Brain (1); Sparkstation (1); user-deleted-1105 (1)

Previous in Blog: "New" vs Conventional Engineering   Next in Blog: Quality Takes It On The Chin
You might be interested in: Device Programming Services, Device Programmers

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Section
Mechanical Engineering:
Go

Search this Blog
Mechanical Components Blog:
Go

Recent Blog Entries

Blog Links

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (84 right now)
Show Members
Advertisement