Unlike other electrical filtration processes, this energy-efficient system can be customized to remove specific contaminants.

ENGINEERING
Just a handful of people have ever been to the deepest part of the ocean, but what we've learned about life in the hadal zone is astonishing.
The world's largest test bed of floating solar panels is due to be operational by the end of the year.
These contraptions celebrate inefficiency.
What goes on inside a windmill?
Bones created in a lab could provide a low-carbon alternative.
The mysterious Antikythera mechanism—sometimes called 'the world's first computer'—has fascinated scholars for decades.
Connecting New Jersey and Manhattan, the George Washington Bridge remains one of the longest suspension bridges in the United States and is responsible for transporting millions of people into and out of New York every year.
When you want to stop Niagara Falls from flowing, install a cofferdam. The New York State Parks Commission is hoping to do just that as early as 2019.
An armband designed for gesture-based computing could also revolutionize prosthetics.
This model of the Mississippi River Basin was a feat of midcentury engineering. Now it's open to the public.
The hulking Hoover Dam has been holding back the Colorado River and generating power for nearly 80 years, but you may be surprised to learn just how eventful its construction and naming were.