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Primary sourceBook1735

Tanckar om Cometernes Igenkomst

Anders Celsius · 1735

A 1735 Swedish-language tract by Celsius about the return of comets, written for a general audience.

This tract shows Celsius popularising Newtonian astronomy about comets in the Swedish vernacular.

Full text (runeberg.org)

About this source

What it is

This is a tract written by Anders Celsius in 1735, discussing the return of comets, written in Swedish rather than Latin.

Why it matters

This work shows Celsius sharing Newtonian and Halleyan ideas about comets with Swedish readers outside the university world. It reflects his interest in explaining current astronomical science in plain language, at a time when such ideas about comets and their predictable return were still new and exciting.

Look closer

  • Why might writing in Swedish rather than Latin have mattered for who could read this work?
  • What does the topic of comets tell us about scientific interests in Celsius's time?
  • How might popular science writing like this have changed how ordinary people understood astronomy?

This book is part of the curated material that grounds the AI version of Anders Celsius on Humy.ai — when students ask about related events, the AI can quote it and cite it.

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