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Step 5The results.
The margarine gave a clear set of layers - presumably the denser layers (those closest to the bottom of the tube) are water-based (the tubs' ingredients include "buttermilk"), and those higher up are the fats and oils respectively. The top layer remained liquid even after the sample cooled down.
Not all samples give such clear results, and not all samples survive high-g so well or so quickly. I messed up a sample of lamb's blood by spinning it at 8,500g for five minutes instead of 3,500g for half an hour.
Fortunately, if you are lucky enough to get access to a microcentrifuge, you can work with tiy amounts at a time, so even the last few drops of sauce from your plate can provide enough materials to keep an interested mind busy for the rest of the evening.
My first results
Blood - the wrecked samples
My Science Clubbers' results
Have you got access to a centrifuge, micro or otherwise? Spin something up, and let us see what you get.
Not all samples give such clear results, and not all samples survive high-g so well or so quickly. I messed up a sample of lamb's blood by spinning it at 8,500g for five minutes instead of 3,500g for half an hour.
Fortunately, if you are lucky enough to get access to a microcentrifuge, you can work with tiy amounts at a time, so even the last few drops of sauce from your plate can provide enough materials to keep an interested mind busy for the rest of the evening.
My first results
Blood - the wrecked samples
My Science Clubbers' results
Have you got access to a centrifuge, micro or otherwise? Spin something up, and let us see what you get.
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