'City under the ice': NASA scientists find abandoned Cold War military base in Greenland

NASA scientists in Greenland took an unprecedented look at Cold War history when surveys found an abandoned "city under the ...
Greek Reporter

The Ancient Greek Water-Organ: World’s Oldest Keyboard Instrument

Fragments of the Hydraulis—the ancient Greek water organ—were unearthed in the Dion, at the foot of Mount Olympus in 1992.
Quanta Magazine

Mixing Is the Heartbeat of Deep Lakes. At Crater Lake, It’s Slowing Down.

The physics of mixing water layers — an interplay of wind, climate and more — makes lakes work. When it stops, impacts can ...

These were the first underwater photos to reveal the ocean floor—in full color

Capturing the first underwater color photographs was no mean feat and involved powerful explosives as well as hours and hours of waiting.
Barron's

Hydrograph Clean Power Inc.

About Hydrograph Clean Power Inc. Hydrograph Clean Power, Inc. engages in the provision of manufacture and development of hydrogen and graphene. The firm also commercializes the production and sale of ...