New material helps record data with light

The way of how the light with different wavelengths influences on a MOF crystal: different types of excitons are showed in red and blue (left). Image of crystals (right).Image Credit:ITMO University Russian physicists with their colleagues from Europe through changing … Continue reading

‘Blurred times’ in a quantum world

The idealized picture of space and time in general relativity assigns an ideal clock to each point in space, which tick evenly without being influenced by the nearby clocks. However, when quantum mechanical and gravitational effects are taken into account, … Continue reading

Magnetic fields at the crossroads

From compasses used in ancient overseas navigation to electrical motors, sensors, and actuators in cars, magnetic materials have been a mainstay throughout human history. In addition, almost all information that exists in contemporary society is recorded in magnetic media, like … Continue reading

Gravity wave detection with atomic clocks

Illustration of gravitational waves produced by two orbiting black holes. CfA scientists have described a sensitive new method for detecting gravitational waves. Credit: Henze/NASA The recent detection of gravitation waves (GW) from the merger of two black holes of about … Continue reading

New path suggested for nuclear fusion

Using shaped laser pulses — ultrashort, tuned bursts of coherent light — might make it possible to nudge atoms in a deuterium/tritium molecule close enough to fuse, according to a new study. Researchers at Rice University, the University of Illinois … Continue reading

Sorting machine for atoms

Scientists at their sorting machine for Atoms (from left): Dr. Andrea Alberti, Carsten Robens, Prof. Dr. Dieter Meschede, Dr. Wolfgang Alt and Stefan Brakhane.Credit: Copyright Volker Lannert/Uni Bonn Physicists at the University of Bonn have cleared a further hurdle on … Continue reading

Measuring time without a clock

Credit: Ecole Polytechnique Federale de Lausanne EPFL scientists have been able to measure the ultrashort time delay in electron photoemission without using a clock. The discovery has important implications for fundamental research and cutting-edge technology. When light shines on certain … Continue reading

Bohr’s quantum theory revised

Niels Bohr and Paul Ehrenfest (with his son) at Leiden train station (Holland) in 1926. / Credit: Courtesy of the Niels Bohr Archive, Copenhagen Bohr’s atomic model was utterly revolutionary when it was presented in 1913 but, although it is … Continue reading

The world’s first heat-driven transistor

Heat driven transistor on Laboratory of organic electronics, Linköping University. Credit: Thor Balkhed Dan Zhao and Simone Fabiano at the Laboratory of Organic Electronics, Linköping University, have created a thermoelectric organic transistor. A temperature rise of a single degree is … Continue reading

Melting solid below the freezing point

When a crystal structure of bismuth (right) is decompressed from 32,000 atmospheres (3.2 GPa) to 12,000 atmospheres (1.2 GPa) it melts into a liquid at about 23,000 atmospheres (2.3 GPa) (middle). It then recrystallizes at 12,000 atmospheres (left). The so-called … Continue reading

Developing ‘Green’ Electronics

An artist’s rendition of Geobacter expressing electrically conductive nanowires. Microbiologists at UMass Amherst have discovered a new type of natural wire produced by bacteria that could greatly accelerate the development of sustainable “green” conducting materials for the electronics industry. Credit: … Continue reading

Golden mystery solved

Unlocking the secrets of gold. Credit: Massey University Gold is prized for its preciousness and as a conductor in electronics, but it is also important in scientific experimentation. Ernest Rutherford utilised it when mapping the atom, in an experiment, which … Continue reading

Electron diffraction locates hydrogen atoms

Representation of the structure of a cobalt aluminophosphate, superimposed onto a map showing maxima (in yellow) associated with the hydrogen positions, after analysis of the electron diffraction data. Credit: P. Boullay – CRISMAT (CNRS/Ensicaen/Unicaen) Diffraction-based analytical methods are widely used … Continue reading