Doping soldiers so they fight better—is it ethical?

The military is constantly using technology to build better ships, warplanes, guns and armor. Shouldn't it also use drugs to build better soldiers?

* This article was originally published here

Researchers crack an enduring physics enigma

For decades, physicists, engineers and mathematicians have failed to explain a remarkable phenomenon in fluid mechanics: the natural tendency of turbulence in fluids to move from disordered chaos to perfectly parallel patterns of oblique turbulent bands. This transition from a state of chaotic turbulence to a highly structured pattern was observed by many scientists, but never understood.

* This article was originally published here

Researchers find more evidence of 14th-century tsunami that wiped out Sumatran villages

A team of researchers with members from Singapore, Indonesia, Ireland and the U.K. has found more evidence of a tsunami approximately 600 years ago that destroyed communities in the same part of Sumatra as the 2004 tsunami. In their paper published in Proceedings of the National Academy of Sciences, the group describes their study of gravestones and pottery in the area and what they found.

* This article was originally published here

Driverless cars working together can speed up traffic by 35%

A fleet of driverless cars working together to keep traffic moving smoothly can improve overall traffic flow by at least 35 percent, researchers have shown.

* This article was originally published here