Ads 468x60px

Subscribe:

Labels

Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Friday, 27 January 2012

Next Level Invisibility : Cloaked 3D Objects

Invisible Man
-A fantastic science-fiction film "Invisible Man" is looks like can be implementated in real life.


Researchers from University of Texas at Austin now have figured out how to "cloak three dimensional object standing in free space", means the object is invisible. This is not like cloaking research before thats more like mimicry , using Meta-materials that bent ray of light around an object to conceal it, but only worked in two dimensions. Or device that played trick by harnessing the mirage effect to make objects behind it “disappear.”


In daily life we can see objects because the lights bound off it and eyes process the info from lights that hitting eyes. This research published this week in the New Journal of Physics, uses "plasmonic meta-materials" to make an 18-inch cylindrical tube invisibly. To put it simple this object channeling lights around the object, with designed structures that bounce ligth like a pinball machine. This why it can be invisible from every angle.
Tested variate wavelengths to objects


Sounds incridible with those explanations, but researchers only make it with high-frequency wavelengths, such as microwave. Researchers still troubled with optical wavelengths - what human eyes could capture it.


You can obtain the paper in here.


Sources : 
Wired
BBC News
Wikipedia - Plasmonic Metamaterials  

Read More

NASA New Satellite Capture Earth With High-res Image


-NASA recently released this great image from its new sattelite : Suomi NPP

Suomi NPP's mission is bring closer the scientists for weather forecasts and increase understanding of long-term climate change. This sattelite is critical first step in building the next-generation Earth-observing sattelite system. "Suomi NPP will extend and improve upon the Earth system data records established by NASA's Earth Observing System (EOS) fleet of satellites that have provided critical insights into the dynamics of the entire Earth system: clouds, oceans, vegetation, ice, solid Earth and atmosphere." wrote Brian Dunbar on NASA official site.
100% crop from original image.
Suomi NPP was originaly called National Polar-orbiting Operational Environmental Satellite System Preparatory Project, the probe renamed in honor of the late Verner E. Suomi, known as the "father of sattelite meteorology".


This sattelite launched from Space Launch Complex2 at Vandenberg Air Force Base in California on Oct. 28, 2011 at 5:48 a.m EDT by using United Launch Alliance Delta II rocket.


Image can be download on here.


Sources :
NASA Official Site
Wired

Read More