Science

NOVA
Treasures of the Earth: Gems

 

Gemstones like diamonds, rubies, opal and jade are some of Earth’s ultimate treasures. Delve into the depths to discover how these precious stones are forged and what explains the unique allure of each captivating gemstone.

 

NOVA
Sinkholes: Buried Alive

 

In Tampa, Florida, in February 2013, a giant hole opened up under the bedroom floor of Jeffrey Bush, swallowing the 36-year-old as he slept. His body was never found. Bush was a victim of a sinkhole – a growing worldwide hazard that lurks wherever limestone and other water-soluble rocks underpin the soil. When carbon dioxide in the air dissolves in rainwater, it forms a weak acid that attacks the soft rocks, riddling them with holes. Sinkholes can occur gradually when the surface subsides into bowl-shaped depressions or suddenly, when the ground gives way – often catastrophically.

 

NOVA
Super Tunnel

 

Follow an army of engineers and designers as they tackle the complex challenge of building Crossrail, a massive new subterranean railway deep beneath the streets of London.

 

NOVA
Killer Landslides

 

In less than two minutes in March of this year, a one-square-mile field of debris slammed into the Washington state community of Oso, killing 41 and destroying nearly 50 homes. Drawing on analyses of other recent landslides around the world, geologists are investigating what triggered the deadliest U.S. landslide in decades and whether climate change is increasing the risk of similar disasters around the globe.

 

NOVA
School of the Future

 

In a new age of information, rapid innovation and globalization, how can we prepare our children to compete? Discover how the new science of learning can help us re-imagine the future of education for all children. In a series of compelling personal profiles of students and teachers, the film looks at the consequences of widespread inequities that often create gaps in opportunities and educational achievement, and explores innovative attempts to narrow those gaps. NOVA visits neuroscientists, psychologists and educators with new insights revealing how kids’ brains work – including how stress, sleep, mindset and emotions affect learning; what role technology should play in the classroom; and which techniques are most likely to engage and inspire growing minds.

 

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