Commentary Lecture Two: The Chemical History of a Candle - Brightness of the Flame
Channel: engineerguy
Date: 2016-06-28

Bill Hammack & Don DeCoste highlight the key points of Lecture Two of Michael Faraday’s lectures on The Chemical History of a Candle. A free companion book helps modern viewers understand each lecture — details at http://www.engineerguy.com — as does this commentary track and closed captions for each lecture.

►Free Companion book to this video series 
http://www.engineerguy.com/faraday
Text of Every Lecture | Essential Background | Guides to Every Lecture | Teaching Guide & Student Activities

In these lectures Michael Faraday’s careful examination of a burning candle reveals the fundamental concepts of chemistry, while at the same time superbly demonstrating the scientific method. In this lecture Faraday reveals why a candle’s flame is bright. To do this he investigates the properties of the flame. 

LINKS TO OTHER VIDEOS IN THIS SERIES
► Lectures
(1/6) Introduction to Michael Faraday’s Chemical History of a Candle
https://www.youtube.com/watch?v=RrHnLXMTOWM
(2/6) Lecture One: A Candle: Sources of its Flame
https://www.youtube.com/watch?v=6W0MHZ4jb4A
(3/6) Lecture Two: Brightness of the Flame
https://www.youtube.com/watch?v=B8vSLgaW9WQ
(4/6) Lecture Three: Products of Combustion
https://www.youtube.com/watch?v=31pLJyReFXw
(5/6) Lecture Four: The Nature of the Atmosphere
https://www.youtube.com/watch?v=v1DWHeouJYM
(6/6) Lecture Five: Respiration & its Analogy to the Burning of a Candle
https://www.youtube.com/watch?v=Fb4RoPEtwso

► Bonus Videos: Lectures with Commentary
Lecture One: A Candle: Sources of its Flame (Commentary version)
https://www.youtube.com/watch?v=ce0g0e9NmgQ
Lecture Two: Brightness of the Flame (Commentary version)
https://www.youtube.com/watch?v=grWNnVB9B-4
Lecture Three: Products of Combustion (Commentary version)
https://www.youtube.com/watch?v=0s8anLurWp0
Lecture Four: The Nature of the Atmosphere (Commentary version)
https://www.youtube.com/watch?v=WLgxPKU-JsI
Lecture Five: Respiration & its Analogy to the Burning of a Candle (Commentary version)
https://www.youtube.com/watch?v=tCmZfnT6_M4

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COMPANION BOOK DETAILS
The companion book is available as an ebook, in paperback and hardcover — and for free as a PDF. Details on all versions are at http://www.engineerguy.com/faraday

Michael Faraday’s The Chemical History of a Candle
with Guides to the Lectures, Teaching Guides & Student Activities
Bill Hammack & Don DeCoste
190 pages | 5 x 8 | 14 illustrations
Hardcover (Casebound) | ISBN 978-0-9838661-8-0 | $24.95
Paper| ISBN 978-1-945441-00-4| $11.99
eBook | ISBN 978-0-9839661-9-7 | $3.99
Audience: 01 — General Trade
Subjects
SCI013000   SCIENCE / Chemistry / General
SCI028000   SCIENCE / Experiments & Projects
SCI000000   SCIENCE / General
EDU029030  EDUCATION / Teaching Methods & Materials / Science & Technology

This book introduces modern readers to Michael Faraday’s great nineteenth-century lectures on The Chemical History of a Candle. This companion to the YouTube series contains supplemental material to help readers appreciate Faraday’s key insight that “there is no more open door by which you can enter into the study of science than by considering the physical phenomena of a candle.” Through a careful examination of a burning candle,  Faraday’s lectures introduce readers to the concepts of mass, density, heat conduction, capillary action, and convection currents. They demonstrate the difference between chemical and physical processes, such as melting, vaporization, incandescence, and all types of combustion. And the lectures reveal the properties of hydrogen, oxygen, nitrogen, and carbon dioxide, including their relative masses and the makeup of the atmosphere. The lectures wrap up with a grand, and startling, analogy: by understanding the chemical behavior of a candle the reader can grasp the basics of respiration. To help readers understand Faraday’s key points this book has an “Essential Background” section that explains in modern terms how a candle works, introductory guides for each lecture written in contemporary language, and seven student activities with teaching guides.

Author Bios
Bill Hammack is a Professor of Chemical & Biomolecular Engineering at the University of Illinois—Urbana, where he focuses on educating the public about engineering and science. He is the creator and host of the popular YouTube channel engineerguyvideo. 

Don DeCoste is a Specialist in Education in the Department of Chemistry at the University of Illinois—Urbana, where he teaches freshmen and pre-service high school chemistry teachers. He is the co-author of four chemistry textbooks.