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.