Color gradient filament is fun stuff to play with. It lets you make 3D prints that slowly fade from one color to another along the Z-axis. [David Gozzard] wanted to do some printing with this effect, ...
Is Gold in the Grips of a Speculative Bubble? The danger is that gold is in the grip of the sort of speculative excess that creates bubbles in other parts of the financial system. If investors expect ...
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