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New invisibility cloak combines metamaterials and fancy electronics to be thinner, lighter, more invisible

2013-11-11 18:00:45| Extremetech

A researcher at the University of Texas at Austin has devised an invisibility cloak that could work over a broad range of frequencies, including visible light and microwaves. This is a significant upgrade from current invisibility cloaks that only cloak a very specific frequency -- say, a few hertz in the microwave band -- and, more importantly, actually make cloaked objects more visible to other frequencies. The UT Austin cloak would achieve this goal by being active and electrically powered, rather than dumb and passive like existing invisibility cloaks.

Tags: more electronics invisible combines

Invisibility cloak made from Teflon can be created in just 15 minutes

2013-09-10 16:54:01| Extremetech

Chinese researchers have succeeded in using a highly novel approach to craft a Teflon-based invisibility cloak in just 15 minutes. The process, called topology optimization, uses computer software to algorithmically and automatically design a material with specific qualities -- such as an invisibility cloak. The design, once desired qualities have been achieved, is then produced using a 3D printer or similar computer-controlled manufacturing device.

Tags: in made just minutes

Human-scale invisibility cloak created by father and son team for $150

2013-08-16 16:30:19| Extremetech

Two physicists at the University of Rochester in New York have created an invisibility cloak capable of hiding large objects, such as humans, buses, or satellites, from visible light. Surprisingly, rather than relying on exotic and hard-to-manufacture materials, this invisibility cloak is fashioned out of conventional mirrors. This isn't theoretical, like some of the other invisibility cloaks we've covered -- you could build this cloak today from off-the-shelf parts and hide yourself from view.

Tags: for son team created

Invisibility cloak made from simple mirrors can stop time indefinitely

2013-08-14 17:16:00| Extremetech

Researchers at Northwestern University have designed an invisibility cloak that can temporally hide objects for an indefinite period of time. Objects covered by this invisibility cloak wouldn't disappear from sight, but rather it would appear that time has completely stopped for the cloaked object. A clock, for example, would continue to tick -- but to the human observer, the hands would never move.

Tags: time made simple stop