Blocked holes can enhance rather than stop light going through

Conventional wisdom would say that blocking a hole would prevent light from going through it, but Princeton University engineers have discovered the opposite to be true. A research team has found that placing a metal cap ...

Caravaggio used photographic techniques: researcher

Italian Renaissance painter Caravaggio used revolutionary optical instruments to "photograph" his models more than 200 years before the invention of the camera, according to a researcher in Florence.

James Webb Telescope's last backbone component completed

(Phys.org) —Assembly of the backbone of NASA's James Webb Space Telescope, the primary mirror backplane support structure, is a step closer to completion with the recent addition of the backplane support frame, a fixture ...

New phenomenon found in internal waves

(PhysOrg.com) -- Internal waves -- huge but nearly invisible ripples that occur in the oceans, the atmosphere and stars -- can play an important role in climate change and other processes, but there is plenty about them that ...

To touch the microcosmos

What if you could reach through a microscope to touch and feel the microscopic structures under the lens? In a breakthrough that may usher in a new era in the exploration of the worlds that are a million times smaller than ...

The new world of gamma-ray optics

Scientists discover that certain materials like silicon or gold exhibit a surprisingly large refractive index for extremely high energetic gamma-rays.

NASA tests ICESat-2's laser aim

Close enough doesn't cut it in the spacecraft assembly cleanroom at NASA Goddard's Space Flight Center, where engineers are building an elevation-measuring instrument to fly on the Ice, Cloud and land Elevation Satellite-2 ...

Double engine for a nebula

(PhysOrg.com) -- The new image, showing a very rich field of stars towards the Carina arm of the Milky Way, is centred on the star HD 87643, a member of the exotic class of B[e] stars [1]. It is part of a set of observations ...

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