Display of a candidate event for a W boson decaying into one muon and one neutrino from proton-proton collisions recorded by ATLAS with LHC stable beams at a collision energy of 7 TeV. (Image: CERN 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 th…
Year: 2018
And this month, a team of scientists will venture to the long-ice-buried expanse to investigate the mysterious ecosystem that was hidden beneath the Antarctic ice shelf for so long.
The newly exposed seabed stretches across an area of about 2,246 square miles (5,818 square kilometers), according to the British Antarctic Survey (BAS), which is leading the expedition. The scientists consider their journey “urgent,” as they hope to document the system before sunlight begins to change at least the surface layers. [In Photos: Antarctica’s Larsen C Ice Shelf Through Time]
“The calving of [iceberg] A-68 [from the Larsen C Ice Shelf] provides us with a unique opportunity to study marine life as it responds to a dramatic environmental change. It’s important we get there quickly before the undersea environment changes as sunlight enters the water and new species begin to colonize,” Katrin Linse, of the British Antarctic Survey, said in a statement.
Perspective view of the shallow megathrust looking seaward towards the trench; the frontal prism has been cut away. The color scales indicate depth below seafloor, and grey denotes the seafloor. Credit: Edwards et al., Nature Geoscience, Feb-2018 Geophysicists have obtained detailed three-dimensional images of a dangerous megathrust fault west of Costa Rica where two plates of the Earth’s crust collide. The images reveal features of the fault surface, including long grooves or corrugations, that may determine how the fault will slip in an earthquake. The study, published February 12 in Natu…
12 Feb 2018 Engineering and Physical Sciences Photography Competition 2018 Previous slideNext slide1 of 16View AllSkip Ad Second place in the Weird and Wonderful category This picture of Placental ‘Pop Art’ has won Second place in the Weird and Wonderful category of the Engineering and Physical Sciences Research Council’s annual photography competition. These images show automatically segmented chorionic vascular trees obtained from high resolution photography. Dr Rosalind Aughwane/UCL/EPSRC/PA Back to image.
A University of Texas at Dallas graduate student, his advisor and industry collaborators believe they have addressed a long-standing problem troubling scientists and engineers for more than 35 years: How to prevent the tip of a scanning tunneling microscope from crashing into the surface of a material during imaging or lithography. Details of the group’s solution appeared in the January issue of the journal Review of Scientific Instruments, which is published by the American Institute of Physics. Scanning tunneling microscopes (STMs) operate in an ultra-high vacuum, bringing a fine-tipped p…
It’s impressive, but it doesn’t seem that practical. Maybe a temporary solution while they get the cost of ATLAS down a lot, and get ATLAS equipped with human like hands.
In other news, this Boston Dynamics robot just learned how to open doors and let itself out: http://bit.ly/2EqgWN2