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Showing posts from January, 2022

Environmental Science

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  Fraser Island Many years ago when the world was young, my father would take myself and some of his honours students on water sampling expeditions to Fraser Island. We would hike into the forest and find lakes, where we would test the water and go for a swim. We did lots of four wheel driving and we would stop at the beach, sample the ground water, and do some beach fishing. Leptospermums Leptospermum is the genus of flowering plants that bees collect nectar from to produce bioactive manuka honey. There is a bit of a legal contest over whether the honey has to specifically come from the manuka plant in New Zealand. Manuka honey contains an active compound called Methylglyoxal, that has good antibacterial properties. Manuka honey has seen great success in wound care and is a value-added brand of honey. Micropipeting A micropipetter is a tool for sucking up a small amount of liquid and depositing it in a separate container. With nectar sampling you use a micropipetter to inject a single

Catapults.

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 I've been a fan of catapults since I first played Age Of Empires 2. Here is a picture of a model trebuchet I purchased.  I made a few catapults and giant sling shots with my mate. The biggest catapult I made was a big rubber O ring meant for sealing storm drain pipes slung up along a set of monkey bars, with the in between bars working as a backfire arrester. I didn't record the amount of hangtime those golf balls got, but it was a good few seconds. It was a good thing no-one got their brain smashed in. One time we were using a rope made of elastic band, and he wasn't ready when I yanked him backwards so when he released the slingshot it came back at him. He got a black eye from being hit in the face with a passion fruit. Good times, Boston