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Floating in mercury
Whilst planning a lesson yesterday I discovered that there aren’t many good photographs of objects floating in mercury on the web. This post is an attempt to rectify this problem. Pound Coin: Slotted...
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Liquid metal telescope
As previously mentioned, size matters when it comes to telescopes: the bigger the mirror, the better the telescope (i.e. the greater the resolution and light-gathering capability). The world’s largest...
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Mercury and aeroplanes
One of the many items you are not permitted to bring aboard aeroplanes is a mercury thermometer (or more accurately “mercurial thermometers and barometers”). Why? Aeroplanes are made largely of...
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