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Finance & Markets

StoneCo Becomes Oversold

The DividendRank formula at Dividend Channel ranks a coverage universe of thousands of dividend stocks, according to a proprietary formula designed to identify those stocks that combine two important…

Science

Three photons at once beat the standard photon test

Physicists at the University of Twente have improved the standard test for the quality of individual particles of light. By letting three photons interfere at the same time instead of two, they draw more information from every measurement. Their experiment outperforms even a perfect, noise-free run of the old method.

Science

The Next Energy Crisis Could Be a Water Crisis

Strategic shortfalls? Maybe in getting cobalt out of the Congo or rare earth powders from China or natural gas from Russia or oil from the Persian Gulf? Or maybe something closer to home.

  • Climate change causes water scarcity and temperature rise
  • Colorado River flow decreases, Lake Mead levels fall
  • Power plants face water shortage challenges

Tech

E-Paper Works Best When Almost Nothing Is Happening

E-paper is unusual because its strength shows up in moments when a screen can stay still. A phone display is built to refresh constantly, while E-paper is happy holding the same image until someone asks for another one. That makes it well-suited for reading and other tasks where movement doesn’t add much value. The Page […]

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