VII Workshop on Science with the New Generation of High Energy Gamma-ray Experiments
October 7, 2009 - October 9, 2009 October 8, 2009 - October 10, 2009OSA's Frontiers in Optics 2009, Laser Science XXV
October 11, 2009 - October 15, 2009Elihu Boldt
15 July 1931 - 12 September 2008
Goddard Space Flight Center
Greenbelt, MD
Brian Pippard
07 September 1920 - 21 September 2008
Cambridge University
Cambridge, UK
In the Magazine October 2009
Shear thickening in colloidal dispersions
Shampoos, paints, cements, and soft body armor that stiffens under impact are just a few of the materials whose rheology is due to the change in viscosity that occurs when colloidal fluids experience shear stress
Hot dust evinces a violent planetary collision around a nearby star
The dust’s IR spectrum bears the signatures of crustal material that has been melted, vaporized, and blasted into space.
US government agencies work to minimize damage due to helium-3 shortfall
Stiff new competition from security applications for a limited supply of helium-3 threatens research in low-temperature physics, neutron scattering, and medicine, for example
As weapons work slows, DOE labs keep busy with research
The laboratory-directed R&D program is a bright spot in a bleak outlook for nuclear weapons R&D
Where Opportunity knocked
For 683 Martian days�more than a full Martian year and almost two Earth years�NASA�s Mars Exploration Rover Opportunity explored Victoria Crater, both from its rim and from partway down the crater slope. The crater is about 730 meters wide and 6 kilometers from Opportunity�s landing site
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