Phys. Rev. Focus21, 8 (2008) – Published March 5, 2008
A century-old empirical law relates the number of times a material will survive a repeated stress to the size of the stress. A new model connects this law with steadily accumulating damage at the microscale.
Phys. Rev. Focus21, 5 (2008) – Published February 6, 2008
New calculations show that a material with the right electrical properties could dramatically improve the efficiency of light-like waves that travel on metal surfaces. Devices based on these waves might someday process light signals on a chip.
Phys. Rev. Focus21, 4 (2008) – Published January 28, 2008
An electric field could prevent a stressed material from developing cracks, according to a new theory. The field could nudge atoms moving around on the surface and thereby flatten out undulations that can grow into cracks.
Phys. Rev. Focus21, 3 (2008) – Published January 23, 2008
In 1939 Hans Bethe described in detail the nuclear reactions that power the sun and other stars, leading to his Nobel Prize in 1967. His results relied heavily on the previous decades of advances in physics and astronomy.
Phys. Rev. Focus21, 2 (2008) – Published January 15, 2008
A pair of colliding water droplets merges on the rebound, rather than when they’re squeezing against each other. The results should improve understanding of the separation process of oil-water mixtures important in industry.