An engineer's perspective on using silver against microbes

Humans have appreciated silver's antimicrobial activity for millennia. Hippocrates used the precious metal for wound dressings while the pioneers of the American frontier placed coins in their water to guard against bacteria ...

New book takes sound studies into the cosmos

"We can hear the universe" declared researchers at LIGO (the Laser Interferometer Gravitational-Wave Observatory) announcing the first detection of a gravitational wave last year.

Managing reefs to benefit coastal communities

Coral reefs provide a range of benefits, such as food, opportunities for income and education, but not everyone has the same access to them, according to a new study conducted by the ARC Centre of Excellence for Coral Reef ...

Using math to design amazing mirrors

Mathematician Andrew Hicks was in his Drexel University office, puzzling over some problem he can no longer recall, when colleague Ron Perline walked in with a challenge. Fresh from his morning bicycle ride, Perline was unhappy ...