Tuesday, August 20, 2019

The end of the world: a history of how a silent cosmos led humans to fear the worst

Just an interesting exploration of the zeitgeist of the perceived existence of extraterrestrials throughout history:

https://theconversation.com/the-end-of-the-world-a-history-of-how-a-silent-cosmos-led-humans-to-fear-the-worst-120193

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Battery-Free Artificial Photosynthesis Turns Sunlight, Water, and CO2 Into Fuel

https://scitechdaily.com/battery-free-artificial-photosynthesis-turns-sunlight-water-and-co2-into-fuel/