What is the universe expanding into?

Come on, admit it, you've had this question. "Since astronomers know that the Universe is expanding, what's it expanding into? What's outside of the Universe?" Ask any astronomer and you'll get an unsatisfying answer. We ...

Graphene under pressure

Small balloons made from one-atom-thick material graphene can withstand enormous pressures, much higher than those at the bottom of the deepest ocean, scientists at the University of Manchester report.

Flexible paper robots

(PhysOrg.com) -- These inexpensive robots can stretch, bend and twist under control, and lift objects up to 120 times their own weight. Being soft, they can apply gentle and even pressure, and adapt to varied surfaces.

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