Physics

NASA Updates Russian Space Station Cargo Ship Launch, Docking Coverage

Loaded with three tons of food, fuel and supplies, a Russian Progress cargo spacecraft is scheduled to launch at 3:13 a.m. EST (2:13 p.m. Baikonur time) Tuesday, Feb. 13, to resupply the International Space Station.

Turbulence: Adequate scaling thanks to surface roughness

Turbulence in oceans, in the atmosphere or in industry, is billions of times stronger than in lab experiments. Simply upscaling the lab results is not an option. Theoretically, however, there is a regime of turbulence in which scaling laws apply. Researchers have succeeded in reaching this 'asymptotic ultimate regime' of turbulence, by introducing roughness at the surface at which turbulent liquid flows.

Captured electrons excite nuclei to higher energy states

For the first time, scientists demonstrated a long-theorized nuclear effect called nuclear excitation by electron capture. This advance tests theoretical models that describe how nuclear and atomic realms interact and may also provide new insights into how star elements are created.

Captured electrons excite nuclei to higher energy states

For the first time, physicists from the U.S. Department of Energy's (DOE) Argonne National Laboratory and their collaborators, led by a team from the U.S. Army Research Laboratory, demonstrated a long-theorized nuclear effect. This advance tests theoretical models that describe how nuclear and atomic realms interact and may also provide new insights into how star elements are created.

NASA Acting Administrator Statement on Fiscal Year 2019 Budget Proposal

Statement from acting NASA Administrator Robert Lightfoot on the Fiscal Year 2019 agency budget proposal.

Portable optical clock used to measure gravitation for the first time

A European collaboration has used one of the world's portable optical atomic clocks to measure gravitation for the first time.

Magnetic materials increase energy density in power transformation

Power transformation. Electrification of vehicles. Creating motors that are efficient. Some of the biggest technologies of the future rest on finding ways to efficiently transform energy. And the backbone that enables the development of these technologies is the field of advanced materials.

First high-precision measurement of the mass of the W boson at the LHC

In a paper published today in the European Physical Journal C, the ATLAS Collaboration reports the first high-precision measurement at the Large Hadron Collider (LHC) of the mass of the W boson. This is one of two elementary particles that mediate the weak interaction – one of the forces that govern the behaviour of matter in our universe. The reported result gives a value of 80370±19 MeV for the W mass, which is consistent with the expectation from the Standard Model of Particle Physics, the theory that describes known particles and their interactions.

New process allows 3-D printing of nanoscale metal structures

By mixing metal ions and organic ligands, scientists have developed a process for the 3-D printing of metal structures that are smaller than ever before.

Tiny engine powered by demixing fluid

An international team of researchers has developed a tiny, liquid-based engine powered by a demixing fluid. In their paper published in the journal Physical Review Letters, the group describes their little engine and possible uses for it.

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