California Institute of Technology researchers have developed an electron microscope that can create real-time 3D images of molecules as they form and break apart in femtosecond reactions, using a modified transmission electron microscope interfaced with an ultrafast laser.
November 5, 2001
Nuclear plants are vulnerable to attacks by terrorists, according to a stark new warning by the International Atomic Energy Agency (IAEA).
The world’s 1300 nuclear facilities are not hardened to withstand “acts of war” like a deliberate hit by a large, fully-fuelled passenger jet, warns the IAEA’s director general, Mohamed ElBaradei.
In the US on October 29, following intelligence reports received by the FBI, the air space around all… read more
September 4, 2013
Imagine a clock precise to one second in a period comparable to the age of the universe (more than 13 billion years).
September 1, 2015
The Department of Energy has approved the start of construction for a 3.2-gigapixel digital camera — the world’s largest — at the heart of the Large Synoptic Survey Telescope (LSST), revealing unprecedented details of the universe and helping unravel some of its greatest mysteries.
Assembled at the DOE’s SLAC National Accelerator Laboratory, the camera will be the eye of LSST.
Starting in… read more
An international team led by the U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory has proved how the world’s most powerful X-ray laser can assist in cracking the structures of biomolecules.
The team’s experiments used SLAC’s Linac Coherent Light Source (LCLS) to obtain ultra-high-resolution views of crystallized biomolecules, including a small protein found in egg whites called lysozyme.
For decades, scientists have reconstructed… read more
August 15, 2012
With a thin sliver of diamond, scientists at the U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory have transformed the Linac Coherent Light Source (LCLS) into an even more precise tool for exploring the nanoworld.
The improvements yield laser pulses focused to higher intensity in a much narrower band of X-ray wavelengths, and may enable experiments that have never before been possible.
In a process… read more
February 20, 2014
University of Leeds researchers have taken the lead in the race to build the world’s most powerful terahertz laser chip.
Terahertz waves, which lie in the part of the electromagnetic spectrum between infrared and microwaves, can penetrate materials that block visible light.
They have a wide range of possible uses, including chemical analysis, security scanning, remote sensing of chemical signatures of explosives in unopened envelopes, non-invasive… read more
November 4, 2011
A laser powerful enough to tear apart the fabric of space is planned as part of a new scientific project that aims to answer some of the most fundamental questions about our universe.
The Extreme Light Infrastructure (ELI) Ultra-High Field Facility would produce a laser so intense that scientists say it would allow them to reveal vacuum particles for the first time by pulling this vacuum “fabric”… read more
September 7, 2004
This week, UK particle physicists will demonstrate the world’s largest working computing Grid. With more than 6,000 computers at 78 sites internationally, the Large Hadron Collider Computing Grid (LCG) is the first permanent, worldwide Grid for doing real science.
The Grid is designed to handle the expected 15 petabytes of data that will be produced each year by particle physics experiments at the Large Hadron Collider at CERN. By… read more
November 10, 2008
The largest truck in the world is about to become the largest robotic vehicle in the world. Computer scientists from Carnegie Mellon University have teamed up with engineers from Caterpillar to automate the 700-ton trucks, which are made to haul loads up to 240 tons from mines.
January 12, 2012
Their complex task was to calculate various “two-color Ramsey numbers,” connected with the emergence of order in disordered systems.
Ref.: Zhengbing Bian et al., Experimental Determination Of Ramsey Numbers With Quantum Annealing, arxiv.org/abs/1201.1842
In an attempt to test quantum nonlocality — the “spooky interaction at a distance” that occurs between two entangled particles, physicists from the University of Geneva have sent two entangled photons traveling to different towns located 18 km apart –the longest distance for this type of quantum measurement.
By separating the two interferometer measurements by 18 km (a photon would take 60 microseconds to cover the 18… read more
November 2, 2012
The 630MW scheme, located in the Thames Estuary, will be the world’s largest offshore wind farm, with construction on schedule to be finished by the end of the year.
The 175 turbines will produce enough power to supply over 470,000 UK homes with electricity.
London… read more
July 14, 2001
A 20-million-pixels screen with the visual acuity of the human eye at 10 feet has been developed at Sandia National Laboratories. It is also the fastest in the world in rendering complex scientific data sets, says program leader Philip Heermann.
The Sandia images are created through massively parallel imaging, using outputs of 64 computers and splitting data into 16 screens arranged as a 4 by 4… read more
December 20, 2013
Scientists have created a molecular communications system for the transmission of messages and data in challenging environments where electromagnetic waves cannot be used — such as tunnels, pipelines, underwater, within the body, and in biomedical nanorobots.
Molecular signaling is a common feature of the plant and animal kingdom — insects for example use pheromones for long-range signalling — but to date, continuous data have not been transmitted using… read more