YouTube launches broad entertainment venture

(AP) -- YouTube is making a bold step into original programming in an entertainment venture with some 100 content creators, from Madonna to The Wall Street Journal.

Video: How is ceviche 'cooked?'

What does it mean to have "cooked" something? Is heat the only way to break down proteins and transform raw ingredients?

Video: The rise of bio-concrete

Concrete is the most important building material on Earth, but its production causes a MASSIVE amount of global carbon emissions.

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