Joined nano-triangles pave the way to magnetic carbon materials

Graphene, a two-dimensional honeycomb structure made of carbon atoms with a thickness of only one atom, has numerous outstanding properties. These include enormous mechanical resistance and extraordinary electronic and optical ...

Uber, Lyft losses keep competitors at bay

A fare war between Uber and Lyft has led to billions of dollars in losses for both ride-hailing companies as they fight for passengers and drivers.

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