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Geschäft
Mark Zuckerberg Taps the Strengths of WhatsApp
When Facebook bought WhatsApp for $19 billion nearly a decade ago, Mark Zuckerberg made a promise: The Facebook chief said…
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Wissenschaft
3D-printed toilet is so slippery that nothing can leave a mark
A test of the miniature toilet using dyed honey Bin Su et al. A 3D-printed toilet is so slippery that…
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