Abstract: Sweep spread carrier (S2C) acoustic communication uses wideband chirp waveforms as they are well suited for communicating in an undersea multipath environment. While the gradient heterodyne ...

Long before YouTube tutorials and makeup hacks, ancient Egyptians were among the first to widely use makeup, beginning around 6000 BCE.

While existing in some fashion throughout history, the ubiquitous and immortal smiley face has in fact been a fairly recent ...

The Pecos River murals are a stunning collection of monumental, multicolored rock paintings in limestone rock shelters across ...

Carved on a disk about the size of a dinner plate was writing in an unknown language. The debate has raged for a century: Is ...