Mark Zuckerberg built a glowing wooden box to help his wife sleep better

· Facebook CEO Mark Zuckerberg built a glowing wooden box to help his wife, Dr. Priscilla Chan, sleep better. · The box emits a soft light from 6 a.m. to 7 a.m. every morning. · 'As an engineer, building a device to help my partner sleep better is one of the best ways I can think of to ...

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