火星七日

2024 / 英国 / 科学 / 宇宙 / 纪录片

布莱恩·考克斯

摄制组独家拍摄了美国国家航空航天局喷气推进实验室(JPL)的世界顶尖太空工程师和科学家，记录他们在关键的7天里指挥价值20亿美元的毅力号探测器穿越火星表面。从火星传回的实时图像将揭晓从未见过的火星景观，让我们得以探索火星过去和现在的秘密。这是有史以来最雄心勃勃的太空任务，它的终极目标是在火星上找到生命的迹象。2021年2月，毅力号降落在火星表面。经过12个月的适应期，摄制组有机会加入了毅力号探测器第一次长途旅程的任务小组。从着陆点行驶到目的地——拉奥洛塔瓦陨石坑——毅力号探测器需要一周的行驶时间。这是一段长约仅1.2公里却极具挑战性的旅程。如果毅力号能成功到达目的地，它将创下地外旅行的新纪录。一场激动人心的七天之旅即将开始。

地平线系列之：雪崩引发致命暴风雪

2018 / 英国 / 自然 / 灾难 / 纪录片

Danielle George

In March 2018 an international team of scientists gathered in a remote valley in the Canadian Rockies to conduct a unique experiment - to attempt to see into the heart of a massive avalanche to see if we can find ways to save lives in the future. Avalanches kill hundreds of people every year. Even in the UK 25 people have been killed by these forces of nature since the year 2000. But we know surprisingly little about them - why they happen or how they are able to produce destructive forces so powerful that they can flatten entire villages. Equally disturbing is the fact that climate change means that the pattern of avalanches is changing. They are occurring in places where they have never happened before. Finding out where might be in danger in the future is of vital importance. Answering all these questions could help save lives. The experiment attempts to provide those answers. The team of experts, gathered from all over the world, includes the programme's presenter Prof Danielle George. Her day job is studying space at Manchester University, but she is also a specialist in the design of experiments. She is even getting personally involved. As part of an experiment to test out safety equipment, Danielle puts on the latest breathing device intended to help you survive being caught in an avalanche. She then agrees to be buried under half a tonne of snow. The scientists hope to do what no one has ever managed before - to reveal the mysteries of an avalanche's destructive power by finding out what is going on at its very heart. Hitherto, our understanding of avalanches has been based on computer models - but these consistently underestimate the sheer power of these natural phenomena. To try and work out why, the scientists will conduct a range of cutting-edge tests, using the latest technology, including placing a car rigged with sensors right in the path of the avalanche. The plan is to set up the equipment and then unleash the avalanche by dropping explosives near the top of the slope. But the team are in a race against time. They have just three days to rig the mountain before the snow will come down the slope naturally. If they aren't ready in time, all their efforts will be wasted. Even worse, they are working in an active avalanche zone. For some scientists going out on the slopes to install their equipment means risking their lives. Interwoven with the main experiment are powerful and moving stories from survivors of these violent natural forces. We meet Casey George, whose two children were buried when an avalanche struck the small town of Missoula, Montana, completely out of the blue while they were playing. Their neighbour Fred Allendorf was inside his house when it was completely destroyed. The cataclysm claimed the life of his wife. Missoula had never been struck by an avalanche before. And no one could understand how a well-built house could be utterly demolished. The film meets British snowboarder Johno Verity, who was being filmed when an avalanche started right underneath him. His story provides clues as to what causes these disasters - a subtle change in the microscopic structure of snow deep beneath the surface. In a unique snow lab, where they can recreate different snow conditions, Danielle discovers exactly how snow can be transformed from something light and fluffy into a potential killer. And there is Elyse Saugstad, an expert skier who, despite years of experience, was caught unawares in an avalanche that killed three of her friends. All these stories emphasise just how unpredictable and devastating these events can be and why we need to understand and so be able to predict them better. In addition to being buried, Danielle George conducts another experiment into equipment that may help skiers survive being caught in an avalanche. Your chances of living rapidly diminish if you are buried for more than 15 minutes. She conducts a test with an inflatable airbag that is designed to keep you near the surface of an avalanche, making you easier to find. After two intense days of work by the scientific team, the experiment ends with over 1,000 tonnes of snow rushing down the mountainside. It triggers a whole host of censors and observational equipment. There is then a tense wait for results. But when they come, they are revealing. It seems that the team may have uncovered the first clues to an avalanche's unexplained power. If so, this could one day lead to significant breakthroughs in how we build houses and infrastructure that may lie in an avalanche's path and in how we devise safety equipment for skiers. It could be that this experiment will help save lives in the future.

爱因斯坦与霍金解锁宇宙

2019 / 英国 / 欧美综艺

爱因斯坦和霍金——两位20世纪最伟大的“科学巨人”，爱因斯坦的广义相对论引出了宇宙膨胀的概念，从而引出了大爆炸理论。史蒂芬·霍金用这个理论来解开宇宙之谜，霍金将这一理论与量子力学的不确定性原理结合起来，展示了黑洞的“蒸发”。通过对爱因斯坦和霍金的采访和录音，这部纪录片将呈现两位科学家真实的理论、分歧及见解。 　　第1集 时间膨胀效应 　　第2集 揭示宇宙诞生