Tag: Observing

Free Download Cornelia F. Mutel, "A Sugar Creek Chronicle: Observing Climate Change from a Midwestern Woodland "
English | ISBN: 1609383958 | 2016 | 240 pages | EPUB, PDF | 1474 KB + 2 MB
In 2010, while editing a report on the effects of climate change in Iowa, ecologist Cornelia Mutel came to grips with the magnitude and urgency of the problem. She already knew the basics: greenhouse gas emissions and global average temperatures are rising on a trajectory that could, within decades, propel us beyond far-reaching, irreversible atmospheric changes; the results could devastate the environment that enables humans to thrive. The more details she learned, the more she felt compelled to address this emerging crisis. The result is this book, an artful weaving together of the science behind rising temperatures, tumultuous weather events, and a lifetime devoted to the natural world. Climate change isn’t just about melting Arctic ice and starving polar bears. It’s weakening the web of life in our own backyards.

Free Download Observing the Moon by Peter T. Wlasuk
English | PDF (True) | 2000 | 189 Pages | ISBN : 1447111524 | 49.7 MB
Why write another guide to observing the Moon? That was the question I was pondering as I began this project, having a fine collection of "classic" lunar guidebooks dating back to 1791 in my own library. As a Fellow of the Royal Astronomical Society (RAS), member of the American Astronomical Society’s Division for Planetary Sciences (AAS DPS), and member of the American Geophysical Union (AGU), I am fortunate to know many pro fessionallunar scientists who keep me up to date with developments in lunar scienc- contrary to public perception, lunar science has definitely not stagnated since the last Apollo, No. 17, left the surface of the Moon in December, 1972. I am also lucky to know many amateur lunar observers, who, like me, enjoy actually looking at the Moon with tele scopes and imaging it with a wide variety of devices ranging from regular 35 mm cameras to video recorders and CCD cameras. My friends who study the Moon, whether in their professions or just for fun, gave me several reasons for doing "another" lunar guidebook. First, the last lunar observer’s guide of any length was published over ten years ago, and many reviewers noted that it was badly out of date even then.

Last updated 8/2023
MP4 | Video: h264, 1280×720 | Audio: AAC, 44.1 KHz, 2 Ch
Genre: eLearning | Language: English | Duration: 25 Lessons (12h 41m) | Size: 10.7 GB
It’s easy to imagine the first modern humans staring up at the heavens in wonder, their eyes and minds dazzled by a beautiful band of light splashed across the night sky, the ever-changing moon so large and bright, and pinpoints of light in every direction….
It’s easy to imagine the first modern humans staring up at the heavens in wonder, their eyes and minds dazzled by a beautiful band of light splashed across the night sky, the ever-changing moon so large and bright, and pinpoints of light in every direction. For a few hundred thousand years, our eyes were our primary astronomical tool, and we used them well. We catalogued and analyzed what we saw, filled in the gaps with powerful stories, applied what we knew of mathematics, and then invented complex tools of stone, metal, and glass to expand our knowledge. Everything we knew about the universe was based on light, that small part of the electromagnetic spectrum detectable by human eyes.