I’ve just been sent this link to a virtual microscope set up by the Open University’s Knowledge Media Insitute. The petrological microscope is especially nifty; not only can you pan and zoom, but you can also switch between plane polarised and cross polarised light, and even rotate selected points to look at extinction angles. These are important features if you want to work out what minerals you’re looking at; in cross-polarised light, different minerals turn lots of pretty colours, which can change depending on the angle you look at it.
There’s currently only a handful of samples publically available (including lunar and martian meteorites), but it’s quite fun to play around with. With a few more to choose from, I could brush up on my mineral identification, which is not one of my stronger areas…
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- Simulating radioactive decay
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- On Simulating radioactive decay:
- Tor B: Hmmm, I refreshed the page and the ‘last parent standing’ changed, but then settled back to... Read
- Tor B: Nice graphics, but the last purple ‘atom’ is always fourth from the right on the top row. I... Read
- nick dert: great read. I feel lucky to be alive in an age where many scientists before me and current ones who... Read
- Clare Jarvis: I enjoyed this, immensely. Read
- Lauren McPhillips: This post is spot-on. Particularly the point about stormwater control measures/ green... Read
- Lyle: Note that there have been near 50 inch rainfalls in storm events in Tx in the past a lot of them being due... Read