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A signal in the cosmic microwave background thought to be evidence of inflation in the early Universe can be explained by interstellar dust.
A mirror made with metamaterials reflects at a selected angle and only responds to radiation of a specific frequency, while being transparent to other radiation.
An x-ray laser has imaged the three-dimensional structure of the mimivirus by combining hundreds of measurements on single virus particles.
A proposed device would extend a quantum entanglement scheme previously demonstrated for visible photons into the microwave regime, where it could boost radar performance.
New imaging and detection tools of interest to physicists were the focus of many talks at the 2015 AAAS Meeting in San Jose.
A simple system consisting of a pair of atoms in a two-site “minicrystal” is able to reproduce the physics of a widely used model of electrons in a solid.
A proposed detector for low-energy antineutrinos would reveal the particles’ trajectories, potentially allowing more detailed studies of Earth’s radioactivity and of nuclear reactors.
A new approach is able to quantify the environmental effects on an evolving organism by analyzing just a small number of surviving individuals.
A powerful laser beam separates into many smaller filaments that undergo a phase transition similar to fluid percolating through a porous material.