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Transcript of NanoInvisibility
Skyler McLenahan,Pranati Mondkar, Abby Ukleba Nanotechnology in
Invisibility Materials Introduction Optical Cloaking device: The Romans - created a glass cup containing nano-sized particles of gold that changed the color of whatever object was placed in it Light is often bent in nature Bending Light EX: mirages in the desert create images of the sky
Nanoinvisibility materials bend rays of light around objects, hiding the object from sight Nanoinvisibility used to only be possible in red wavelengths and on really small objects
Different types of nanomaterials and nanotechnology bigger and better opportunities
For example: new advancements will make it possible to produce larger invisibility cloaks for objects as big as buildings History The Future POTENTIAL IMPACTS! POSITIVE? The Science of Invisibility How Invisibility Works Index of Refraction Use of Nanomaterials Advancing....
MILITARY STEALTH SOCIETY Crime Terrorist attacks Undetectable on radar Paints for stealth aircrafts ie: nuclear power plants, electric pylons, govt. buildings (cc) photo by theaucitron on Flickr Negatives? If it got into the wrong hands... the engineering of functional systems at the molecular scale (10^-9)
Scientists manipulate particles at the nanoscale = effect of INVISIBILITY What is Nanotechnology in Invisibility? Protect soldiers from being exposed to dangers on the battlefield invisibility material contain sensors- DNA tests can be done
nanobots-fight infections in the body on their own
miscroscopes can detect problems faster due to better image quality wavelengths are bent around the object, giving the object the illusion of invisibility Use of Magnetic Meta-materials Nano-magnets can power each other when activated by light regardless of its frequency Magnets can control magnetic fields AND electrical fields Invisibility cloak is designed out of these non-magnetic metamaterials Downfall:
Only works for the red wavelength (632.8 nanometers) Use of Carbon Nanotubes Used to cloak an object in complete darkness Index of refraction is almost identical to that of the surrounding air, so unabsorbed light will not scatter out of the nanotube Cloak is off Only cloaks objects for a single wavelength Cloak is on Works Cited
"Advances in Invisibility Cloaking Using Nanomaterials." Institute of Nanotechnology. MIT, 25
Jan. 2011. Web. 28 Sept. 2012. <http://www.nano.org.uk/news/1213/>Berger, Michael. "New Cloaking
Material Hides Objects Otherwise Visible to the Human Eye."
New Cloaking Material Hides Objects Otherwise Visible to the Human Eye. N.p., 3 Aug. 2011. Web. 28 Sept. 2012. <http://www.nanowerk.com/spotlight/spotid=22296.php>.
Bourzac, Katherine. "Nano Paint Could Make Airplanes Invisible to Radar." Technology Review.
MIT, 5 Dec. 2011. Web. 28 Sept. 2012. <http://www.technologyreview.com/news/426276/nano-paint-could-make-airplanes-invisible-to/>.
"'Invisibility' Cloak Could Protect Buildings From Earthquakes." Nanotechnology Now. Ed.
Rocky Rawstern. N.p., 14 Feb. 2012. Web. 28 Sept. 2012. <http://www.nanotech-now.com/news.cgi?story_id=44495>.
Johnson, Dexter. "Graphene Enables Invisibility Cloak." - IEEE Spectrum. N.p., 7 July 2011. Web. 03 Oct.
"Nano-electromagnets Powered by Light Turn Invisibility Cloak into a Possibility."
Nano-electromagnets Powered by Light Turn Invisibility Cloak into a Possibility. Netherlands Organisation for Scientific Research (NWO), 23 Dec. 2009. Web. 28 Sept. 2012. <http://www.nanowerk.com/news/newsid=14164.php>.
"Nanotechnology Optical Cloaking Design for Invisibility." Nanotechnology Optical Cloaking
Design for Invisibility. Purdue University, 2 Apr. 2007. Web. 28 Sept. 2012. <http://www.nanowerk.com/news/newsid=1718.php>.
"Nanotechnology Ushers in Cloak of Invisibility." : Nanotechnology Ushers in Cloak of Invisibility. 11 Nov.
2011. Web. 28 Sept. 2012. <http://www.activistpost.com/2011/11/nanotechnology-ushers-in-invisibility.html>.
"New Invisibility Cloak Conceals Objects From Human View." New Invisibility Cloak Conceals
Objects from Human View | Homeland Security News Wire. N.p., 1 Aug. 2011. Web. 28 Sept. 2012. <http://www.homelandsecuritynewswire.com/new-invisibility-cloak-conceals-objects-human-view>.
Nordmann, Alfred. "MIT Press Journals; Invisible Origins of Nanotechnology: Herbert Gleiter,
Materials Science, and Questions of Prestige." (2009): 123-43. MIT Press Journals. Darmstadt Technical University, 2009. Web. 28 Sept. 2012. <http://www.mitpressjournals.org/>.
Smith, David R. "Nano World: Invisibility through Nano." Nano World: Invisibility through
Nano. 25 May 2006. Web. 28 Sept. 2012. <http://phys.org/news67787896.html>.
"Thousands of Invisibility Cloaks Trap a Rainbow." Thousands of Invisibility Cloaks Trap a
Rainbow. Institute of Physics, 25 May 2012. Web. 28 Sept. 2012. <http://www.nanowerk.com/news/newsid=25373.php>. Use of Pressurized Rubber Objects can be 'invisible' to sound, vibration, or light waves Downfall: it is almost impossible to use natural materials as cloaks against ALL elastic waves The change in direction of a wave length due to a change in its speed Describes how much light will bend in a specific material Light is bent around the object, making it appear invisible Surveillance Protect buildings QUESTIONS? ? ? ? ? ? Nanotechnology has only been able to perfect invisibility to the size of a petri dish.