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太空探索：下一个100年
Space Exploration: The Next 100 Years |
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| 课程网址: |
http://videolectures.net/mitworld_newman_chaikin_chakrabarti_binz...
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| 主讲教师: |
Supriya Chakrabarti, Richard P. Binzel, Andrew Chaikin, Dava Newman
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| 开课单位: |
麻省理工学院
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| 开课时间: |
2017-07-21
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| 课程语种: |
英语
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| 中文简介: |
高度希望在这个小组中遇到很大的挫败感，他们的参与者共同渴望一个指导我们太空计划的新愿景。安德鲁·柴金（Andrew Chaikin）建议采用三步自助方案来推动该计划：降低进入太空的成本（流动费率为每磅1万美元！）;拥抱“开箱即用”的想法;并参与有关太空的全国性对话。 Supriya Chakrabarti预测，在大约30年后，NASA将部署机器人地球行星探测器并利用月球进行旅游和商业开发，如采矿。如果在短期内空间科学家寻找低成本的发射选择，这可能包括利用现有的导弹技术，这将是可能的。理查德宾策尔认为，在未来100年内，一颗文明威胁小行星撞击的可能性达到百万分之一，但他相信人类探索太空中的小行星的可能性要大得多。自从我们已经将机器人侦察机送到木星的卫星之后，我们已经站了起来。宾泽尔说，如果我们担心灾难性的小行星撞击，我们应该开始采取渐进措施，例如将核反应堆放置在太空中，以便为长距离行星旅行提供动力。
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| 课程简介: |
High hopes meet high frustration in this panel, whose participants collectively yearn for a new vision to guide our space program. Andrew Chaikin recommends a three-step self-help regimen to move the program forward: lowering the cost of access to space (the going rate is 10 thousand dollars per pound!); embracing “outside-the-box” ideas; and engaging in a national conversation about space. Supriya Chakrabarti predicts that in around 30 years, NASA will be deploying robotic terrestrial planet finders and using the moon for both tourism and commercial development like mining. This will be possible if in the short term space scientists look for low-cost launch options, which might include exploiting existing missile technology. Richard Binzel puts the odds of a civilization-threatening asteroid impact in the next 100 years at one in a million, but believes the odds are a whole lot better that human beings will be exploring asteroids in space. We’ve got a leg up since we’ve already sent robot reconnaissance to the moons of Jupiter. If we’re worried about catastrophic asteroid strikes, Binzel says, we should start taking incremental steps, such as putting nuclear reactors in space to power vehicles for long inter-planetary journeys.
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| 关 键 词: |
宇宙; 太空探索; 太空旅行
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| 课程来源: |
视频讲座网
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| 最后编审: |
2019-06-21：chenxin
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| 阅读次数: |
112
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