05/03/2020

Internet

Twitter CEO Dorsey to 'reconsider' Africa plans

Twitter chief executive Jack Dorsey said Thursday he is rethinking plans to spend as long as six months in Africa, partly due to concerns over the new-coronavirus epidemic.

Electronics & Semiconductors

Layered solar cell technology boosts efficiency, affordability

The future's getting brighter for solar power. Researchers from CU Boulder have created a low-cost solar cell with one of the highest power-conversion efficiencies to date, by layering cells and using a unique combination ...

TAP Air Portugal cancels 1,000 flights

Portugese airline TAP said Thursday it would cut roughly 1,000 flights in March and April as it seeks to adjust to a drop in demand due to the spread of the new coronavirus.

Engineering

The unfoldable bridge

There are many different methods for erecting bridges—but the new technique developed by TU Wien, the balanced lowering method, is quite spectacular: the bridge is not built horizontally, as would normally be case, but ...

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