Tập
NOVA: Episode 13
Tóm tắt
From derailments to head-on collisions to drivers killed at road crossings, deadly train accidents claim dozens of lives each year. But just how unsafe are the railroads? NOVA investigates recent rail tragedies and advances in train tech that could help prevent them, taking a special look at Japan’s superefficient bullet trains, which have a perfect safety record. What would it take to usher in a new golden age of safer, faster, more modern and reliable train travel?
Chi tiết
- Phim bộ
- NOVA
- Mùa
- Mùa 44
- Tập
- Tập 13
- Ngày phát sóng
- 2017-02-22
- Thời lượng
- 55 min
Thông tin tập
Episode 13 là tập 13 trong Season 44 của NOVA. Tập này phát sóng ngày 2017-02-22. Thời lượng là 55 min.
Tập trước / tập sau
Tập 12
The centuries-old tradition of folding two-dimensional paper into three-dimensional shapes is inspiring a scientific revolution. The rules of folding are at the heart of many natural phenomena, from how leaves blossom to how beetles fly. Engineers and designers are applying its principles to reshape the world around us—and even within us, designing new drugs, micro-robots, and future space missions.
Tập 14
The Lithuanian city of Vilna, known also as the “Jerusalem of the North”, was one of the most important Jewish centers in the world until World War II, when the Nazis murdered about 95% of its Jewish population. Now, an international team of archaeologists is excavating the remains of its Great Synagogue and searching for a lost escape tunnel dug by Jewish prisoners inside a Nazi execution site.
Các tập khác trong mùa này
Tập 11
Join pioneering shipbuilders as they embark on a feat of maritime engineering.
Tập 15
Engineers race to build a massive dome to contain the crumbling remains of the reactor.
Tập 10
Explore the hidden world of energy storage and how it holds the keys to a greener future.
Tập 16
For over 1000 years, chariots thundered across China's battlefields - dominating warfare longer than anywhere else on earth. Now, archaeological findings enable a team of experts to reconstruct and test China's first super-weapon.
Tập 9
Five years after the earthquake and tsunami that triggered the unprecedented trio of meltdowns at the Fukushima Daiichi nuclear power plant, scientists and engineers are struggling to control an ongoing crisis. What’s next for Fukushima? What’s next for Japan? And what’s next for a world that seems determined to jettison one of our most important carbon-free sources of energy? Despite the catastrophe—and the ongoing risks associated with nuclear—a new generation of nuclear power seems poised to emerge the ashes of Fukushima. NOVA investigates how the realities of climate change, the inherent limitations of renewable energy sources, and the optimism and enthusiasm of a new generation of nuclear engineers is looking for ways to reinvent nuclear technology, all while the most recent disaster is still being managed. What are the lessons learned from Fukushima? And with all of nuclear’s inherent dangers, how might it be possible to build a safe nuclear future?
Tập 17
NOVA investigates what happened in Flint, Michigan when local officials changed the city’s water source to save money, but overlooked a critical treatment process. As the water pipes corroded, lead leached into the system, exposing the community—including thousands of children—to dangerous levels of poison. NOVA uncovers the science behind this manmade disaster.
Tập 8
The towering Himalayas were among the last places on Earth that humanity settled. Scaling sheer cliff sides, a team of daring scientists hunts for clues to how ancient people found their way into this forbidding landscape and adapted to survive the high altitude. They discover rock-cut tombs filled with human bones and enigmatic artifacts, including gold masks and Chinese silk dating back thousands of years, and piece together evidence of strange rituals and beliefs designed to ward off the restless spirits of the dead.
Tập 18
On August 21, 2017, millions of Americans will witness the first total solar eclipse to cross the continental United States in 99 years. While hordes of citizens prepare to flock to the eclipse’s path of totality, scientists, too, are staking out spots for a very different reason: to investigate the secrets of the sun’s elusive atmosphere.
Tập 7
Drill down to discover how Earth's natural treasures provide bountiful energy to power our modern world yet are also driving us to seek new, cleaner alternatives that can help us keep the lights on.
Tập 19
Stonehenge is the grandest and most enigmatic of Europe’s prehistoric monuments, and has inspired countless theories to explain who built it and why. Join NOVA as we reveal intimate details of the Stonehenge people and why their power began to fade soon after they raised the mighty stones.