The Large Stone Carving is the heaviest stone in the Forbidden City in Beijing. It was believed to have weighed more than 300 tons when it was first transported to the site between 1407 and 1420.
Credit NYPL Digital Gallery
Judging from a carving found in an Egyptian tomb, experts say 172 men were used to transport the 60-ton Statue of Tehuti-Hetep, circa 1880 B.C. Water was used to lubricate the colossus as it slid along wooden planks.
The distance between the Forbidden City in Beijing (a) and the Dasiwo Quarry in Fangshan (b) is about 43 miles. Double lines on the map represent rivers; single lines represent roads.
Credit Bob Jordan / AP
The Cape Hatteras Lighthouse in Buxton, N.C., was moved almost 3,000 feet inland on July 9, 1999, to protect it from the advancing ocean.
Great works of ancient engineering, like the Pyramids or Stonehenge, inspire awe in every beholder. But some onlookers also get inspired to figure out exactly how these structures were made.
Howard Stone, an engineer from Princeton University, had such a moment in Beijing's Forbidden City — a city-within-a-city of palaces and temples built in the 15th and 16th centuries. A carved, 300-ton slab that formed a ramp to one structure particularly caught Stone's eye. "How in the world did it get here?" he wondered.
Sportvision uses helicopter and water-based platforms to superimpose the national flags of competing teams over broadcasts of the America's Cup sailing competitions.
Credit Courtesy of Sportvision
Sportvision creates its on-screen graphics, like the Virtual Yellow 1st & Ten line, with infrared sensors attached to uniforms and positioned around the stadium. The line shows viewers how far the offense has to advance the ball to earn a first down.
A few weeks ago, the smartphone maker announced it had signed a letter of intent to sell the company valued at $4.7 billion to Fairfax Financial Holdings. Instead, in a statement released Monday, BlackBerry announced it will receive a $1 billion investment from Fairfax Financial and others. BlackBerry CEO Thorsten Heins will step down and be replaced by interim CEO John Chen.
Let's talk about smartphones. And for iPhone users, an important decision: when to upgrade. Apple's latest iPhones, the 5S and 5C, have been out for a couple months now. But some people are resisting temptation. They're perfectly happy with their older iPhones, except for one thing, when they upgrade to Apple's new operating system, things slow down.
To talk about how to manage this decision, we're joined - as we often are - by Bloomberg technology columnist Rich Jaroslovsky. Hey, Rich.
The small town of Rjukan has long had to make do without sunlight during the cold Norwegian winters.
But that changed Wednesday, when the town debuted a system of high-tech mirrors to reflect sunlight from neighboring peaks into the valley below.
Rjukan, originally founded 100 years ago as an industrial outpost for the energy company Norsk Hydro, is nestled between several mountains and does not receive direct sunlight from late September to mid-March — nearly six months out of the year.
This mosaic image from NASA's Dawn spacecraft, captured between 2011 to 2012, shows the giant asteroid Vesta. The mountain at the south pole, seen at the bottom of the image, is more than twice the height of Mount Everest.
Originally published on Mon November 4, 2013 10:56 am
That Benjamin Palmer dropped $3,500 at Phillips auction house in New York is not surprising. The 217-year-old company, headquartered on Park Avenue, regularly sells artwork for tens — and often hundreds — of thousands of dollars.
What is surprising, however, is that he took nothing home. He has nothing to put up on his wall or put on a pedestal in his living room. Physically, his acquisition lies among a hub of wires, and the likelihood is he will never touch it. But it lives virtually inside every computer, smartphone or tablet in the world.
When the federal health exchange marketplace opened Oct. 1, we visited jazz musician Suzanne Cloud in Philadelphia. She tried to start an account early in the morning, but technology thwarted her plans.
She wasn't alone, as it became clear quickly that the unprecedented system for Americans in 36 states to shop and enroll for health insurance was broken in several places. A week into her failed attempts, Cloud stayed positive.