---
product_id: 20357590
title: "Why the Sky Is Blue: Discovering the Color of Life"
brand: "götz hoeppejohn stewart"
price: "281 zł"
currency: PLN
in_stock: true
reviews_count: 4
url: https://www.desertcart.pl/products/20357590-why-the-sky-is-blue-discovering-the-color-of-life
store_origin: PL
region: Poland
---

# Why the Sky Is Blue: Discovering the Color of Life

**Brand:** götz hoeppejohn stewart
**Price:** 281 zł
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Why the Sky Is Blue: Discovering the Color of Life by götz hoeppejohn stewart
- **How much does it cost?** 281 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/20357590-why-the-sky-is-blue-discovering-the-color-of-life)

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- götz hoeppejohn stewart enthusiasts

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- Trusted götz hoeppejohn stewart brand quality
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## Description

Full description not available

## Images

![Why the Sky Is Blue: Discovering the Color of Life - Image 1](https://m.media-amazon.com/images/I/31ScUGG0LHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    An adult's answer to a child's question
  

*by H***R on Reviewed in the United States 🇺🇸 on July 16, 2007*

This book could as easily have been titled "Is the Sky Blue?" And the answer to that is yes and no.Gotz Hoeppe, a German science journalist, points out that the sky near the horizon, if clear, is whitish not blue.So when a child asks her father, "Daddy, why is the sky blue?" one answer could be: Take a closer look.A longer, yet still incomplete, answer would be: Light from the sun hits viruses and molecules of gas in the atmosphere and is reflected as blue light. The sky itself -- mostly nitrogen and oxygen -- is colorless.Figuring this out took a long time. The Greeks about 2,500 years ago were the first to become dissatisfied with mythical answers, but although they put a lot of effort into proposing reasons, they did not know how to test them.Hoeppe traces the thinking of prescientific physicists through 2,000 years before getting to the period when real answers started to be found."Why is the sky blue?" is a childish question but answering it was not child's play. The first clues began to be teased out 400 years ago, and the big breakthrough came with Isaac Newton's experiments showing that white light is composed of colors, including, of course, sky blue. Newton published "Opticks" in 1704.Some of his ideas were wrong, which began to be recognized about 50 years later. It took another hundred years to straighten most things out, but another 50 after that for Albert Einstein (and others) to explain the weird qualities of light.One of the interesting things about "Why the Sky is Blue" is that as a German, Hoeppe spreads credit for the development of physics farther east than most popular scientific histories in English do.He also presents a number of phenomena that readers can try out in their backyards.For example, the "blue hour." When the sun goes down, the sky stays blue for a while. The hue is almost, but not quite, the same in the blue hour as during bright daylight, but the mechanism for producing it is entirely unrelated.A careful look at the sky, with Hoeppe's guidance, will reveal a number of other curiosities that we tend to overlook.Unfortunately, Hoeppe's guidance goes awry in his summation, when he raises the alarm about what increased carbon dioxide is likely to mean for the blue sky.The answer, very likely, is nothing, thanks to clouds and other buffering effects, but -- astonishingly -- Hoeppe manages to write about greenhouse gases for two chapters without mentioning the most important one -- water vapor.It wouldn't hurt to skip Chapter 10.

### ⭐⭐⭐⭐⭐ 







  
  
    Five Stars
  

*by D***O on Reviewed in the United States 🇺🇸 on October 5, 2014*

Great book

### ⭐⭐⭐⭐⭐ 







  
  
    A Superb Technical History of an Intriguing Subject
  

*by G***R on Reviewed in the United States 🇺🇸 on January 15, 2010*

When an author writes a book on a technical matter and aims it at a fairly broad readership, it is very important that he/she ensures that the text is very clear and accessible, authoritative yet friendly, very engaging and limited in specialized jargon. In my view, the author of this book has succeeded beautifully on all counts. Beginning with the philosophical musings of the ancient Greeks, various attempts at explaining the blueness of the daytime sky throughout history (up to the present) are brilliantly presented and discussed in detail. Since this book was originally written in German, well-deserved credit also goes to the translator who has done his share in ensuring that this excellent book retain its essence as a model of clarity into the English language. Amply illustrated with photos, diagrams, tables, graphs and colour plates, this well-referenced book can be enjoyed by anyone. Although readers who do not have a science background may be slowed down a bit by some passages, science buffs will likely find this book particularly satisfying. Overall, I would definitely rank this popular science book among the best of its type that I've read.

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-28*