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2 produkter
2 produkter
- Nyhet
The Astronomy of Hipparchus
An Annotated Translation of and Introduction to the Commentary on the Phenomena of Aratus and Eudoxus
Inbunden, Engelska, 2026
2 017 kr
Skickas inom 5-8 vardagar
Hipparchus was the most important astronomer of the ancient Greek world. This volume provides a comprehensive introduction to almost everything that can be known or reasonably surmised about his life and work. Hipparchus was the first to apply an effective geometric model to the cosmos, which enabled him to predict the positions of the Sun, Moon and stars more reliably than before. He was also the first to catalogue most of the stars that were visible in the northern hemisphere, giving a detailed account of their risings, settings and culminations. His most important discovery was the long-term movement of the sky, known as precession. Crucially, this study provides a translation and analysis of Hipparchus' only surviving work, the Commentary on the Phenomena of Aratus and Eudoxus, and reconstructs his catalogue of the stars, which has not survived, using a modern precession model.
141 kr
Skickas inom 7-10 vardagar
Stranded on an alien planet, two astronauts must battle deadly elements and each other to recover a reserve shuttle built for oneBlack Star is a debut graphic novel by Eric Anthony Glover, based on his original unproduced screenplay, and illustrated by Arielle Jovellanos. In the future, interstellar travel is past its prime and sending shuttles beyond our solar system—even for vital scientific research—is a life-threatening gamble. However, in order to retrieve samples of an alien flower that may hold the key to saving countless lives, Harper North and her crew of scientists must journey to Eleos, a dangerous planet in deep space.But as they approach Eleos, their ship is caught in an asteroid storm and as it hurtles towards the surface, its reserve shuttle detaches, landing over 100 kilometers away. When the rest of the crew perishes in the burning wreckage of the ship, North races towards the rescue shuttle built for one, hoping to fulfill their mission and survive. But North isn’t alone: The team’s wilderness expert is still alive and hell-bent on hunting North down and claiming the shuttle for herself.Now, North has no choice but to reach the shuttle first—and fast. The fuel is leaking. Her GPS battery is dying. And the planet’s deadly seasonal change is coming. As she battles the flora and fauna and tries to elude her ruthless former crew mate, North will find the cost of survival is dear . . . Will she be willing to pay that price?