Precision metrology closes in on dark matter

Optical clocks are so accurate that it would take an estimated 20 billion years—longer than the age of the universe—to lose or gain a second. Now, researchers in the U.S. led by Jun Ye's group at the National Institute ...

SLAC invention could make particle accelerators 10 times smaller

Particle accelerators generate high-energy beams of electrons, protons and ions for a wide range of applications, including particle colliders that shed light on nature's subatomic components, X-ray lasers that film atoms ...

Fish, seaweed inspire slippery surfaces for ships

Long-distance cargo ships lose a significant amount of energy due to fluid friction. Looking to the drag reduction mechanisms employed by aquatic life can provide inspiration on how to improve efficiency.

Multidimensional, dual-channel vortex beam generator

Optical vortices, characterized by a helical phase front and doughnut-shaped intensity distribution, contribute to a broad range of applications, from microscopy to optical communications. And applications for optical vortices ...

The search for molecular glue in targeted disease control

In cells, there are proteins that do the work and proteins that regulate them. The latter inhibit or enhance activity, depending on the need. However, in many diseases—for example cancer—there is so much overactivity ...

Casimir force used to control and manipulate objects

A collaboration between researchers from the University of Western Australia and the University of California Merced has provided a new way to measure tiny forces and use them to control objects.

Valley Hall nanoscale lasers developed

Topological photonics underpins a promising paradigm for robust light manipulation, as well as smart design of optical devices with improved reliability and advanced functionalities that are governed by the nontrivial band ...

How the giant sequoia protects itself

The giant sequoia (Sequoiadendron giganteum) has developed effective strategies to protect itself against external influences in its natural environment in the Sierra Nevada. Its bark ensures that the tree survives wildfires ...

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A cavity is a hole. It may refer to:

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