Rays ‘n’ beams

The best of the rest from the Physics arXiv this week:

February 13, 2010

Measurement Of The Energy Spectrum of Cosmic Rays Above 10^18 eV Using The Pierre Auger Observatory

Natural And Artificial Atoms For Quantum Computation

On Quantum Correlations across the Black Hole Horizon

Stokesian Jellyfish: Viscous Locomotion Of Bilayer Vesicles

Difference In The Wind Speeds Required For Initiation Versus Continuation Of Sand Transport On Mars: Implications For Dunes And Dust Storms

The Role Of Quasars In Galaxy Formation

Some worry that the chatter about these tools is doing the whole field a disservice.

The controversial face recognition company was just fined $10 million for scraping UK faces from the web. That might not be the end of it.

The European Union is planning new legislation aimed at curbing the worst harms associated with artificial intelligence.

Perovskites are promising, but real-world conditions have held them back.

Illustration by Rose Wong

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