engineering

Worst-case planning never hurt anybody, and certainly not federal water projects that cost millions of dollars and could be easily undone by climate change and rising sea levels. A new policy now requires the U.S. Army Corps of Engineers to plan for future climate change when designing plans for flood control or other projects.

There aren't too many YouTube videos capable of inducing measurable feelings of vertigo while you watch comfortable at your desk, but this is one of them. It was filmed by a brave, brave Scotsman standing on top of the world.

Berliners may soon get more to see on the horizon than just construction cranes, if a German architect realizes his massive vision. The world's largest artificial mountain could sit on the spot currently occupied by Tempelhof airport, and provide a natural getaway for Berliners and tourists alike. Did we also mention the fine skiing opportunities from September through March?

Architect Jakob Tigges has named his 1,000-meter-tall mountain "The Berg," which may conjure up images of some bygone World War II-era redoubt. But the idea supposedly has many supporters among Berlin residents, and we have to admit that it's a novel way of one-upping all those other cities focused on having the tallest buildings.

Usually, the drag race comes after the new muscle cars hit the road, not while they're still on the drawing board. But in a tech presentation in Detroit this week, Chrysler showed off a computer-aided modeling system it developed in-house that it says let the company bring its Challenger from concept to market in just 21 months, quicker than Chevrolet did its similarly muscular Camaro.

This has been a good week for sonic physics. First came reports that scientists used sound waves to create a sonic black hole. Now, it seems that a different group of scientists have used specially calibrated sound waves to create something almost as cool: a sonic laser.

The lasers most people are familiar with are formed from beams of light with identical wave structures, added together to form one giant, coherent wave. The saser, created by scientists from the University of Nottingham, England, works the same way, but with correlated sound waves instead of light waves.

Inspired by designs created by his father decades ago, Jared Potter is building an arsenal of ultra-powerful flame-jet drills. As seen in the NatGeo video above, one prototype directs a jet of burning hydrogen at 3200°F against a slab of solid granite.

Name: Oasis of the Seas
Where: Florida
Cost: $1.2 billion
Estimated Completion: This year
The Challenge: Build an 18-story-tall superliner with more outdoor space

When the Oasis of the Seas sets sail later this year, it will claim the record for biggest passenger ship, with space for 6,300 passengers, 2,000 more than any other ship. But it will also claim the most rooms with balconies, the biggest onboard swimming pool, and the first at-sea, tree-filled, outdoor park.

Name: Burj Mubarak al Kabir
Where: Kuwait
Cost: $7.37 billion
Estimated Completion: 2016
The Challenge: Erect a 3,300-foot building that’s strong enough to withstand 150mph winds

Name: Perdido Spar
Where: Gulf of Mexico
Cost: Undisclosed
Estimated Completion: First oil, 2010; all wells online, 2016
The Challenge: Moor a skyscraper-size floating rig to the seafloor, then drill the world's deepest subsea well

Two hundred miles off the coast of Galveston, Texas, below 10,000 feet of water and another 9,000 feet of mud, salt and rock, lies Shell Oil's most ambitious new target, a swath of seabed the size of Houston that holds enough oil and natural gas to produce up to 130,000 barrels a day.