A biologist by training, Aristotle attacked the Sophists, such as Antiphon, who believed that there was a big difference between nature and culture. Antiphon thought humans were best served if they followed nature. Aristotle said no: we are naturally designed to live in cities and cultures.
Knot theory could help spacecraft navigate crowded solar systems
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It can be difficult to figure out how to move a spacecraft from one orbit
to another, but a trick from knot theory can help find spots where shifting
orbit...
2 hours ago
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