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Search results for invisibility cloaks

General Âé¶¹ÒùÔºics Dec 3, 2015

Magnetic invisibility cloak shields magnets from magnetic fields

(Âé¶¹ÒùÔº)—Typically when two magnets are brought close together, they either attract or repel each other due to interactions between their magnetic fields. In a new study, researchers have designed a 3D magnetic invisibility ...

Nanophysics Dec 2, 2015

Optical metacage blocks light from entering or escaping

(Âé¶¹ÒùÔº)—Âé¶¹ÒùÔºicists have built a nanowire cage that blocks one or more wavelengths of light from either entering or escaping, yet allows liquids and gases to pass through the small gaps between the nanowires. The "optical ...

Optics & Photonics Nov 10, 2015

Ultra-thin, tunable, broadband microwave absorber may advance radar cloaking

Microwave absorbers are a kind of material that can effectively absorb incident microwave energy to make objects invisible to radar; therefore they are commonly used in aircraft cloaking and warship stealth. Recently, as ...

Space Exploration Nov 9, 2015

Dust devils detected by seismometer could guide Mars mission

Buried in the shallow soft mud of a dry California lake bed, a seismometer was able to detect the tiny tilts of the ground as it was pulled up by passing dust devils. The experiment, described online November 10 in the Bulletin ...

Astronomy Oct 22, 2015

Hubble spies Big Bang frontiers

Observations by the NASA/ESA Hubble Space Telescope have taken advantage of gravitational lensing to reveal the largest sample of the faintest and earliest known galaxies in the Universe. Some of these galaxies formed just ...

Other Oct 8, 2015

'Harry Potter' e-books come to life in new Apple edition

You don't need to be a wizard to see the "Harry Potter" books come to life.

Optics & Photonics Oct 6, 2015

Researchers design material that more effectively slows light

Researchers at The University of Alabama designed and made a material that manipulates the speed of light in a new, more effective way than previous methods, according to findings recently published in Scientific Reports ...

Optics & Photonics Sep 30, 2015

Invisibility cloak might enhance efficiency of solar cells

Success of the energy turnaround will depend decisively on the extended use of renewable energy sources. However, their efficiency partly is much smaller than that of conventional energy sources. The efficiency of commercially ...

General Âé¶¹ÒùÔºics Sep 24, 2015

Ten years on, invisibility cloaks are close to becoming a manufacturable reality

Invisibility has long been one of the marvels in science fiction and fantasy – and more recently in physics. But while physicists have figured out the concept for how to make invisibility cloaks, they are yet to build a ...

Astronomy Sep 22, 2015

Radio telescopes could spot stars hidden in the galactic center

The center of our Milky Way galaxy is a mysterious place. Not only is it thousands of light-years away, it's also cloaked in so much dust that most stars within are rendered invisible. Harvard researchers are proposing a ...

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