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Millions of Africans are displaced without crossing a border – and their needs are often overlooked
情報源: The Conversation Science ·
The issue of internal displacement remains poorly understood despite the very large number of people involved.
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Flying an RC Airplane with Twin Airblower EDFs
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Satellite network achieves first cellular handoff, cutting switch time to milliseconds
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1,200-mph US Navy Super Hornets to pack four Mach 5+ hypersonic Blackbeard missiles
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New recycling process targets critical metals in discarded computer hard drive magnets
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US strikes Iran’s Qeshm Island near the world’s most critical oil shipping route
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New virtual Earth model could help distinguish alien life from geology on exoplanets
記事 · Interesting Engineering