This geologist heartily endorses the thread
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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I see what you did there.
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I didn't join Twitter for this kind of punishment.
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It almost threw me for a curve, but (x-2)^2 + (y-2)^2 had me circling the wagons.
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Both tweets - pure art
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Epidemiology is spreading ?
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Can you be very mean?
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