了解为什么人类比其他物种更能对生物圈产生影响。 网站：https://www.bighistoryproject.com/portal Facebook: https://www.facebook.com/bighistoryproject Twitter：https://twitter.com/BigHistoryPro 点击这里查看更多视频：https://alugha.com/oerprojectlearning
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Janna Levin discusses what we know about the Big Bang, and ponders the profound questions that remain. Course Website: https://www.bighistoryproject.com Facebook: https://www.facebook.com/bighistoryproject Twitter: https://twitter.com/BigHistoryPro Click here to see more videos: https://alugha.com
Young British officers might have come from polite society, but the trenches of World War I were far from a posh environment. In this video, Andrew Wallis, of the Guards Museum in London, demonstrates the “streetwise” weapons that British officers used in close-quarters combat. Website: https://ww
Trench warfare in the First World War was horrific enough, but mustard gas really sent it over the top. In this short video, Andrew Wallis, of the Guards Museum in London, exhibits the shockingly inadequate gas hoods that British soldiers relied on to survive the horrors of chemical warfare. Websi
