The now-extinct giant beaver once lived from Florida to Alaska.
One full week of keeping track of absolutely everything, to see if gamification can net you a win in the game of life
Welcome to the wonderful world of compost toilet tech
Oxford scientist to create a green, no-electricity refrigerator based on an aged Einstein patent
How new medical tech gets injured stars off the disabled list and onto the field
Cellphones, microchips, cars, even iPhones—there's virtually no high-tech Western product that China's cloners can't copy. Pretty soon, you might even prefer their work
The do-it-all robot of the future will descend from the do-one-thing-well robots of today. Take a look at the worldâ€™s most advanced humanoid precursors
U.S. forces in Iraq are waging a pivotal campaign in modern warfare-combat on the first "networked" battlefield. One problem: the enemy has a few networks of its own
The awards for the other people in Hollywood who matter: engineers
These high-performance machines will run you as much as $15,000. Here's why a custom-built racer is a bargain
Are atomic clocks necessary? Do they really make a difference?
Motorcycles thrilled civilians first. The military then tapped the nimble bikes for use in combat and reconnaissance.
Physics can't find the biggest thing in the known universe, so it's looking beyond our paltry three dimensions. Michael Moyer enters the zone of insanely hard mathematics, translates what he finds into plain English, and makes it back alive.
Here's hoping this month's release of the Hollywood sea-fighting epic Master and Commander will do justice to those magnificent men and their sailing machines. On these pages, the mightiest ships of then and now.
Hockey: Just the Facts
The jury is out, but the answer always entails a healthy dose of biology and sociology.
With the right equipment, cows can be trained to milk themselves.
What's it take to pilot a floating city? Our man reports from the (simulated) bridge.
Producer Larry Klein takes us behind the scenes of the NOVA documentary "Why the Towers Fell", a scientific look at the American Society of Civil Engineers' report of why the World Trade Center collapsed.
Medical invention: Doctors unveil the latest in mechanical parasites.
A building contractor's fascination with ancient shells is unique and contagious.
In 1818, a French engineer invented a device that enabled workers to tunnel under rivers without having mud and water ruin their efforts.