Tagged * Phys.org: Physics™

Trapping and watching motile cells

A new approach enables rapid characterization of living suspension cells in 4 dimensions while they are immobilized and manipulated within optical traps. Read Full Article Here For more great articles: Phys.org: Physics News

Photon ‘afterglow’ could transmit information without transmitting energy

(Phys.org)—Physicists have theoretically shown that it is possible to transmit information from one location to another without transmitting energy. Instead of using real photons, which always carry energy, the technique uses a small, newly predicted quantum afterglow of virtual photons that do not need to carry energy. Although no energy Read Full Article Here For…

Controlling defects in engineered liquid crystals

Sitting with a joystick in the comfort of their chairs, scientists can play “rodeo” on a screen magnifying what is happening under their microscope. They rely on optical tweezers to manipulate an intangible ring created out of liquid crystal defects capable of attaching a microsphere to a long thin fibre. Read Full Article Here For…

Super sensitive measurement of magnetic fields

There are electrical signals in the nervous system, the brain and throughout the human body and there are tiny magnetic fields associated with these signals that could be important for medical science. Researchers from the Niels Bohr Institute have just developed a method that could be used to obtain extremely Read Full Article Here For…

High-tech method allows rapid imaging of functions in living brain

Researchers studying cancer and other invasive diseases rely on high-resolution imaging to see tumors and other activity deep within the body’s tissues. Using a new high-speed, high-resolution imaging method, Lihong Wang, PhD, and his team at Washington University in St. Louis were able to see blood flow, blood oxygenation, oxygen Read Full Article Here For…

Physicists report technology with potential for sub-micron optical switches

A team that includes Rutgers University and National Institute of Standards and Technology scientists believes that a technology it is reporting this week in Nature Photonics could result in optical switches with sub-square-micron footprints, potentially allowing densely packed switching fabrics on a chip. Read Full Article Here For more great articles: Phys.org: Physics News

New idea for Dyson sphere proposed

(Phys.org)—A pair of Turkish space scientists with Bogazici University has proposed that researchers looking for the existence of Dyson spheres might be looking at the wrong objects. İbrahim Semiz and Salim Oğur have written a paper and uploaded it to the preprint server arXiv, in which they suggest that if Read Full Article Here For…

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