Explore the hidden history and super science of hot air balloons, synthetic rubber and metal detectors.
2017 • Technology
Can new engineering techniques help prevent deadly bridge collapses? In 2018, Italy’s Morandi Bridge collapsed, tragically killing 43 people. For 50 years, the iconic bridge had withstood the elements—and stress from ever-increasing traffic. What went wrong that fateful day? And how can new engineering technology protect bridge infrastructure to prevent such tragic failures in the future? Through eyewitness testimony, expert interviews, and dramatic archival footage, NOVA investigates the Morandi disaster and other deadly bridge collapses.
The largest steel plant in the world is a hi-tech super factory that takes production to astonishing levels, turning out 21 million tons of steel every year on a sprawling campus comprised of 50 individually operating sub-factories.
Like human arteries, motorways, roads and train-lines are the lifeblood of any healthy megacity. Whether smoothly flowing or clogged, a city's transport routes affect its inhabitants' quality of life. Andrew Marr finds out how the monstrous megacities stay fed. He also finds out just how hard it is to ride a rickshaw taxi in Dhaka, and discovers how the London tube, once the most ground-breaking transport system in the world, has been usurped by modern transport like Shanghai's 400km/hour magnetic railway. Andrew joins Mexico City's traffic cops in the air, then finds out who is in charge of unblocking Mexico's most filthy canals. He looks into Dhaka's waste management problems, and sees what Britain's fast food obsession is doing to London's sewers.
McLaren's high-tech production center is as remarkably distinctive as the handcrafted automobiles they design and produce, overtaking its Supercar rivals through the application of Formula One science and sophisticated production standards.