UM-Bot Posted October 18, 2019 #1 Share Posted October 18, 2019 A Canadian company has come up with a new material that can render large objects almost totally invisible. https://www.unexplained-mysteries.com/news/331359/new-invisibility-cloak-is-remarkably-effective 7 1 Link to comment Share on other sites More sharing options...
+OverSword Posted October 18, 2019 #2 Share Posted October 18, 2019 Mega cool. 2 Link to comment Share on other sites More sharing options...
the13bats Posted October 18, 2019 #3 Share Posted October 18, 2019 Getting there... 3 1 Link to comment Share on other sites More sharing options...
Scholar4Truth Posted October 18, 2019 #4 Share Posted October 18, 2019 Harry Potter approves 1 Link to comment Share on other sites More sharing options...
cathya Posted October 18, 2019 #5 Share Posted October 18, 2019 (edited) Very cool. Edited October 18, 2019 by cathya 2 Link to comment Share on other sites More sharing options...
Robotic Jew Posted October 18, 2019 #6 Share Posted October 18, 2019 I need this for my desk at work! 3 1 Link to comment Share on other sites More sharing options...
Bed of chaos Posted October 18, 2019 #7 Share Posted October 18, 2019 (edited) Very cool. I fiddle around with optical illusions (and mirrors) for example u can take something like large vanity mirror, put in middle of forest, almost easily create illusion of invisibility. I'm curious if there's another cloak on opposite side of wall. Illusions can be wickedly deceptive yet simple. Edited October 18, 2019 by Bed of chaos 1 Link to comment Share on other sites More sharing options...
Seti42 Posted October 19, 2019 #8 Share Posted October 19, 2019 I want some! Hopefully a few talented visual artists will get to play with it in the near future. I'd love to see this stuff in museums much more than as a tool of warfare... 1 Link to comment Share on other sites More sharing options...
paperdyer Posted October 19, 2019 #9 Share Posted October 19, 2019 9 hours ago, Robotic Jew said: I need this for my desk at work! I needed this for my office before I retired Now I need it for my "man cave". 1 Link to comment Share on other sites More sharing options...
the13bats Posted October 19, 2019 #10 Share Posted October 19, 2019 7 hours ago, Bed of chaos said: Very cool. I fiddle around with optical illusions (and mirrors) for example u can take something like large vanity mirror, put in middle of forest, almost easily create illusion of invisibility. I'm curious if there's another cloak on opposite side of wall. Illusions can be wickedly deceptive yet simple. The headless living lady a famous sideshow illusion is done something like that, oops spoiler. Link to comment Share on other sites More sharing options...
Tom1200 Posted October 19, 2019 #11 Share Posted October 19, 2019 16 hours ago, Robotic Jew said: I need this for my desk at work! I need the exact opposite - a screen that makes it look like I'm actually at work! Something life-size, made out of lightweight material like a large board of... card? And then cut to shape. Wow! I'm gonna patent this technology as soon as I perfect it. Now, if only I had a catchy name for this? wrt the material - it certainly is clever: the screen is collecting light from the edges at the back of the curve and carrying it to the front. This is very much the way fibre-optic bundles have been used in endoscopes for decades, but I suspect these screens use thin sheets. Note how it needs a certain radius of curvature to achieve Total Internal Reflection along the material. I can't see all the claims http://www.hyperstealth.com/Quantum-Stealth/ makes as realistic. First - and this is an inevitable consequence of the nature of this design - the light collected from a small area must be transmitted across a larger area, so will be dimmer. The human eye/brain is remarkably good at ignoring this but a computerised sensor wouldn't be fooled. Whilst it wouldn't detect what was being hidden it would know a shield was there. Secondly - this (as shown) can work from one direction: you can't surround yourself with a cylinder of this material to hide from every line of sight. Then specifically: Scenario 1 would require a frame to drape the material across to keep the curved shape. Scenario 2 wouldn't work - the sensors would measure the drop in light intensity described above, and the troops aren't shielded from the sides or back. Scenario 3 is highly plausible. Scenario 4 - not sure about this; I'd need to do some calculations to factor in the refractive index of water to determine how effective any shielding might be. Scenarios 5, 6 & 7 could be overcome with some basic triangulation - see https://en.wikipedia.org/wiki/Acoustic_location for more details. Definitely cool, but as a summary here's a quote from the Q & A with their CEO: Isn’t there a risk that someone else may figure this out or copy what you’ve done? Yes, but I’ve already developed a countermeasure for Quantum Stealth so we would be able to detect anyone else with something identical or similar to Quantum Stealth. So the issues I've raised have all been recognised. Final point! That conversation is dated 2012! Hope someone with a bit more physics knowledge reads this and corrects all my mistakes. XxX Link to comment Share on other sites More sharing options...
pallidin Posted October 19, 2019 #12 Share Posted October 19, 2019 Wow. I wonder if one can buy a small paper-sized sheet of it to play around with, or, maybe it's restricted or too expensive. 1 Link to comment Share on other sites More sharing options...
pbarosso Posted October 20, 2019 #13 Share Posted October 20, 2019 honestly big deal. see how the "cloak" has to be curved? well there is a focal point of that curve and its about 20 inches behind it. when objects are close to it it doesnt work. its probably that plastic that has those groves in it that they use for those 3D shifting illusions on kids toys...the ones that you look at one way and then as you move your head side to side the image shifts and looks 3D. cool, but definitely not high tech. Link to comment Share on other sites More sharing options...
godnodog Posted October 20, 2019 #14 Share Posted October 20, 2019 So where can I buy this, I mean I am going to war in females locker rooms, I need to hide, you know data gathering mostly photographic stuff Link to comment Share on other sites More sharing options...
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