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Has Hawking changed his Mind about Time Travel?
Stephen Hawking makes a new statement on time travel; the advantage of left-handedness; the crayfish that lies to its own kind; an oily pill to that could replace injections; computerised co-pilots.
麻豆官网首页入口 World Service Archive
This programme was restored as part of the World Service archive project
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Science In Action
The 麻豆官网首页入口 brings you all the week's science news.
