Technology: Da Vinci bridge design holds up even after 500 years, MIT proves - Clash in the Senate between the boss of Vinci Autoroutes and the chairman of a commission - PressFrom - US
  •   
  •   
  •   

Technology Da Vinci bridge design holds up even after 500 years, MIT proves

21:30  10 october  2019
21:30  10 october  2019 Source:   cnet.com

X-Ray Scans Uncover da Vinci's Hidden Painting in All Its Glory

X-Ray Scans Uncover da Vinci's Hidden Painting in All Its Glory The breakthrough confirm's Leonardo's legacy: "Always adjusting, always seeking more." Read More

It's 1502 A.D. and Sultan Bayezid II sends out a request for bids: He wants someone to build an enormous bridge, spanning the Golden Horn and connecting Istanbul to neighboring Galata. If you're Leonardo da Vinci, you don't have modern rebar or asphalt to rely on. Forgoing wood planks and even mortar joints, your design uses only three geometrically daring principals: the pressed-bow, the parabolic curve and the keystone arch. With these, you design what at the time would have been the world's longest bridge, with an unprecedented single span of 790 feet.

a woman smiling for the camera: MIT graduate student Karly Bast shows off a scale model of a bridge designed by Leonardo da Vinci that she and her colleagues used to prove the design's feasibility. MIT© Provided by CBS Interactive Inc. MIT graduate student Karly Bast shows off a scale model of a bridge designed by Leonardo da Vinci that she and her colleagues used to prove the design's feasibility. MIT a woman smiling for the camera: Recent graduate student Karly Bast shows off the scale model of a bridge designed by Leonardo da Vinci that she and her co-workers used to prove the design's feasibility.© CNET

Recent graduate student Karly Bast shows off the scale model of a bridge designed by Leonardo da Vinci that she and her co-workers used to prove the design's feasibility.

A hidden da Vinci lurks beneath 'The Virgin of the Rocks'

A hidden da Vinci lurks beneath 'The Virgin of the Rocks' Researchers at the National Gallery of London have used cutting-edge techniques to reveal a hidden drawing beneath Leonardo da Vinci's The Virgin of the Rocks. It shows that the great artist and his assistants, after laying out the original design, elected to take the biblical-themed painting in a completely different direction, to say the least. First, know that there are two versions of The Virgin of the Rocks, one hanging in the Louvre and one in the National Gallery of London. It's thought that da Vinci first created the Louvre version by himself for a commission, but then sold it privately.

And after the sultan's rejection, you would have to wait more than 500 years for your bridge design to be tested by a team of ambitious MIT engineers and their handy 3D printer.

"It was time-consuming, but 3D printing allowed us to accurately recreate this very complex geometry," MIT graduate student Karly Bast said in a release on Thursday.

Bast worked with a team of engineering academics to finally bring to life a faithful 1-to-500 scale model of da Vinci's famously rejected bridge design, putting the Renaissance man's long-questioned geometry to the test by slicing the complex shapes into 126 individual blocks, then assembling them with only the force of gravity. The group, which presented its work this week in Barcelona, relied on the sketches and descriptions found in da Vinci's letter bidding for the job, along with their own analysis of the era's construction methods.

Venice court temporarily blocks da Vinci loan to Louvre

  Venice court temporarily blocks da Vinci loan to Louvre MILAN (AP) — An administrative court in Venice decided Tuesday to temporarily suspend the loan of Leonardo da Vinci's "Vitruvian Man" to the Louvre in Paris for an exhibition that is set to open later this month. © Provided by The Associated Press This Tuesday April 14, 2015 photo made available Tuesday Oct. 8, 2019 shows Leonardo da Vinci's "Vitruvian Man" during an exhibition in Milan, Italy. An administrative court in Venice has temporarily suspended Tuesday Oct.

The structure is held together only by compression -- the MIT team wanted to show that the forces were all being transferred within the structure, said Bast. "When we put it in, we had to squeeze it in."

Bast said she had her doubts, but when she put the keystone in, she realized it was going to work. When the group took the scaffolding out, the bridge stayed up.

"It's the power of geometry," she said.

a person in a swing© Provided by CBS Interactive Inc.
This tech makes construction with wood faster and cheaper

The Italdesign DaVinci is a striking coupe concept in Geneva

British police shoot dead man at London Bridge - Sky .
British police said on Friday that a man appeared to have been shot in an incident at London Bridge in the heart of the British capital.The BBC said two shots had been fired. Videos and photographs on Twitter showed several police cars and buses on the bridge and a truck straddling several lanes.

—   Share news in the SOC. Networks

Topical videos:

usr: 169
This is interesting!