20/12/2021

Forests with rich tree species grow more consistently

A recent study in Science Advances shows that extreme weather conditions affect species-rich forests less than forests with fewer species. In addition, species-rich forests also produce more wood—largely due to the diversity ...

Science fiction revisited: Ramjet propulsion

In science fiction stories about contact with extraterrestrial civilisations, there is a problem: What kind of propulsion system could make it possible to bridge the enormous distances between the stars? It cannot be done ...

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