了解宇宙是如何运行的第七季
4.0 |2025年12月04日 |已完结
简介:

  S7, Ep1
  8 Jan. 2019 Nightmares of Neutron Stars
  Neutron stars are strange and violent phenomena that defy the laws of physics, and new discoveries reveal that these bizarre nightmares are far more deadly than previously believed, with the power to destroy planets and even other stars.
  
  When Supernovas Strike S7, Ep2
  15 Jan. 2019 When Supernovas Strike
  Supernovas are the violent death of giant stars, and new discoveries reveal that these cataclysmic events create the elements that are essential to all life in the universe.
  
  The Interstellar Mysteries S7, Ep3
  22 Jan. 2019 The Interstellar Mysteries
  Discoveries about interstellar space, the space between the universe's stars, reveal that it's not empty and unremarkable as previously thought, but filled with weird objects and strange phenomena that might hold the darkest secrets of the cosmos.
  
  How Black Holes Made Us S7, Ep4
  29 Jan. 2019 How Black Holes Made Us
  Black holes are not the violent monsters people think they are, and new discoveries reveal that they might have been essential to creating stars, giving light, and building the universe itself.
  
  Secret World of Nebulas S7, Ep5
  5 Feb. 2019 Secret World of Nebulas
  Nebulas are the strange structures of cosmic gas and dust where stars are born and die, and new discoveries reveal the secrets of these mysterious places.
  
  Did the Big Bang Really Happen? S7, Ep6
  12 Feb. 2019 Did the Big Bang Really Happen?
  New discoveries are causing astronomers to question if the Big Bang really happened, and using the latest science, they investigate if it wasn't just the start of our universe but many mysterious multiverses.
  
  Battle of the Dark Universe. S7, Ep7
  19 Feb. 2019 Battle of the Dark Universe.
  Dark matter and dark energy are locked in an epic battle for control of the cosmos, and the winner will determine the fate of the universe. New discoveries might reveal which force will emerge victorious.
  
  Hunt for Alien Life S7, Ep8
  26 Feb. 2019 Hunt for Alien Life
  The latest discoveries suggest that we might be on the verge of discovering life beyond our planet, and scientists are investigating if earth's life began elsewhere in the universe, and whether we need to evolve to know for sure.
  
  Finding the New Earth S7, Ep9
  5 Mar. 2019 Finding the New Earth
  New discoveries have revealed thousands of exoplanets beyond the solar system. Some resemble earth enough that one could be a new home for humanity. Even with cutting-edge technology, finding the perfect one is the scientific challenge of the age.
  
  Cassini's Final Secrets S7, Ep10
  12 Mar. 2019 Cassini's Final Secrets
  For twenty years, NASA's Cassini spacecraft revealed the strange secrets of Saturn until it vaporized in its atmosphere in a blaze of glory. But today its legacy lives on, as fresh data from the probe helps scientists make brand-new discoveries.

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食物的未来
697
10.0
更新至第02集
食物的未来
10.0
更新时间:2025年12月04日
主演:未知
简介:

  Future of Food In the past year, we have seen food riots on three continents, food inflation has rocketed and experts predict that by 2050, if things don't change, we will see mass starvation across the world. This film sees George Alagiah travel the world in search of solutions to the growing global food crisis. From the two women working to make their Yorkshire market town self-sufficient to the academic who claims it could be better for the environment to ship in lamb from New Zealand, George Alagiah meets the people who believe they know how we should feed the world as demand doubles by the middle of the century.
  【India】
  George joins a Masai chief among the skeletons of hundreds of cattle he has lost to climate change and the English farmer who tells him why food production in the UK is also hit. He spends a day eating with a family in Cuba to find out how a future oil shock could lead to dramatic adjustments to diets. He visits the breadbasket of India to meet the farmer who now struggles to irrigate his land as water tables drop, and finds out why obesity is spiralling out of control in Mexico.
  Back in Britain, George investigates what is wrong with people's diets, and discovers that the UK imports an average of 3000 litres of water per capita every day. He talks to top nutritionist Susan Jebb, DEFRA minister Hilary Benn and Nobel laureate Rajendra Pachauri to uncover what the future holds for our food.
  【Senegal】
  George heads out to India to discover how a changing diet in the developing world is putting pressure on the world's limited food resources. He finds out how using crops to produce fuel is impacting on food supplies across the continents. George then meets a farmer in Kent, who is struggling to sell his fruit at a profit, and a British farmer in Kenya who is shipping out tonnes of vegetables for our supermarket shelves. He also examines why so many people are still dying of hunger after decades of food aid.
  Back in the UK, George challenges the decision-makers with the facts he has uncovered - from Oxfam head of research Duncan Green to Sainsbury's boss Justin King. He finds out why British beef may offer a model for future meat production and how our appetite for fish is stripping the world's seas bare.
  【Cuba】
  In the final episode George Alagiah heads out to Havana to find out how they are growing half of their fruit and vegetables right in the heart of the city, investigates the 'land-grabs' trend - where rich countries lease or buy up the land used by poor farmers in Africa - and meets the Indian agriculturalists who have almost trebled their yields over the course of a decade.
  George finds out how we in this country are using cutting-edge science to extend the seasons recycle our food waste and even grow lettuce in fish tanks to guarantee the food on our plates.
  He hears the arguments about genetically modified food and examines even more futuristic schemes to get the food on to our plates.

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食物的未来
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