Physics

Thermoelectric power plants could offer economically competitive renewable energy

(Phys.org)—A new study predicts that large-scale power plants based on thermoelectric effects, such as small temperature differences in ocean water, could generate electricity at a lower cost than photovoltaic power plants.

Quantum world without queues could lead to better solar cells

In a recent study from Lund University in Sweden, researchers have used new technology to study extremely fast processes in solar cells. The research results form a concrete step towards more efficient solar cells.

Video Gives Astronaut’s-Eye View Inside NASA’s Orion Spacecraft

New video recorded during the return of NASA’s Orion through Earth’s atmosphere this month provides a taste of the intense conditions the spacecraft and the astronauts it carries will endure when they return from deep space destinations on the journey to Mars.

SpaceX Completes First Milestone for Commercial Crew Transportation System

NASA has approved the completion of SpaceX’s first milestone in the company’s path toward launching crews to the International Space Station (ISS) from U.S. soil under a Commercial Crew Transportation Capability (CCtCap) contract with the agency.

CERN nuclear physics lab admits Pakistan

The world's top particle physics lab has admitted Pakistan as an associate member, a year after Israel was voted in as a full member.

Team realizes an Aharonov-Bohm type interferometer to measure the band topology in graphene type lattices

Among the most revolutionary concepts of modern physics is that the laws of nature are inherently non-local. One striking manifestation of this non-locality was famously predicted by Aharonov and Bohm: a magnetic field confined to the interior of a solenoid can alter the behavior of electrons outside it, shifting the phase of their wave-like interference although they never directly encounter the magnetic field.

Quantum physics just got less complicated: Wave-particle duality and quantum uncertainty are same thing

Here's a nice surprise: quantum physics is less complicated than we thought. An international team of researchers has demonstrated that two peculiar features of the quantum world previously considered distinct are different manifestations of the same thing.

Glimpsing pathway of sunlight to electricity

Four pulses of laser light on nanoparticle photocells in a spectroscopy experiment has opened a window on how captured sunlight can be converted into electricity. The work, which potentially could inspire devices with improved efficiency in solar energy conversion, was performed on photocells that used lead-sulfide quantum dots as photoactive semiconductor material.

Physicists characterize electronic, magnetic structure in transition metal oxides

Scientists have characterized the electronic and magnetic structure in artificially synthesized materials called transition metal oxides.

Revealing the quantum geometry of the graphene lattice

Among the most revolutionary concepts of modern physics is that the laws of nature are inherently non-local. One striking manifestation of this non-locality was famously predicted by Aharonov and Bohm: a magnetic field confined to the interior of a solenoid can alter the behavior of electrons outside it, shifting the phase of their wave-like interference although they never directly encounter the magnetic field.

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