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Viser resultater for "henry draper"

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Voksenindhold er synligt. 

2025

EN

"On the Construction of a Silvered Glass Telescope" by Henry Draper is a significant work that delves into the intricacies of telescope design and construction. Draper, an accomplished astronomer and pioneer in astrophotography, shares his insights on the use of silvered glass mirrors, which revolutionized the field of observational astronomy. His meticulous approach to the technical aspects of telescope making not only highlights the importance of precision in scientific instruments but a...

On the Construction of a Silvered Glass Telescope

Enriched edition. Fifteen and a half inches in aperture, and its use in celestial photography

2019

EN

In "On the Construction of a Silvered Glass Telescope," Henry Draper presents a meticulous examination of telescope design and fabrication, positioning the work as a critical contribution to both the field of astronomy and the broader scientific community of the 19th century. Draper's prose navigates the technical intricacies of telescope construction with a clarity that makes complex concepts accessible to both seasoned astronomers and enthusiastic amateurs. The book aligns itself with th...

2025

EN

The construction of a reflecting telescope capable of showing every celestial object now known, is not a very difficult task. It demands principally perseverance and careful observation of minutiæ. The cost of materials is but trifling compared with the result obtained, and I can see no reason why silvered glass instruments should not come into general use among amateurs. The future hopes of Astronomy lie in the multitude of observers, and in the concentration of the action of many minds. ...

2024

EN

Tilgængelig

Creative research methods for data generation have expanded over recent decades and researchers are eager to take a creative approach to data analysis.It is challenging to bring creativity into data analysis while retaining a systematic, rigorous, and ethical approach. Written by experts in the field, this handbook addresses these challenges. The chapters adapt analytical techniques in creative ways for novice and expert researchers. Existing and novel methods from analysis of quan...

276,81 kr.

2018

EN

Contemporary and challenging, this thought-provoking book outlines a number of the key dilemmas in animal welfare for today's, and tomorrow's, world. The issues discussed range from the welfare of hunted animals, to debates around intensive farming versus sustainability, and the effects of climate and environmental change. The book explores the effects of fences on wild animals and human impacts on carrion animals; the impacts of tourism on animal welfare; philosophical questions about spe...

549,36 kr.