Earlier this year, the team put Clemmons's unlikely theory to the test, using a 40-square-metre rectangular nylon sail.

今年早些时候，研究小组使用了一个40平方米的长方形尼龙帆，对克莱蒙斯的不可能理论进行了测试。

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SMUGGLED away in the northern reaches of Mumbai is a 19,000-square-metre (200,000-square-foot)playground for chemists and biologists.

在孟买北部有一座化学家和生物学家的乐园，方圆1900平方米（20万平方英尺）。

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Once there, they use tape measures, callipers and a hand-held laser to measure the heights and girths of all the trees within a 500-square-metre plot.

到达目标后，在圈定好的500米区域内，他们用卷尺，测径规和手持激光设备对所有树木的高度和树围进行测量。

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Overall, the array covers just under half a square metre.

BBC: A billion pixels for a billion stars

Once the work is completed, the heritage trust hopes to create a new 971 square metre exhibition space, allowing the museum to display some of the large industrial objects in its reserve collections for the first time.

BBC: Verdant Works

Culture Minister Aurelie Filippetti said she owned a 70-square-metre (750-square-foot) flat in Paris, adding more light-heartedly that she also possessed a David Beckham T-shirt.

BBC: Cahuzac scandal: Ministers publish wealth details