RimstarOrg | What is Fire @RimstarOrg | Uploaded 11 years ago | Updated 12 hours ago
What fire is, using a candle flame as an example. This starts with the fact that the wax in a candle is made up of long hydrocarbon molecules that when heated, by a match for example, break up into carbon and hydrogen atoms and start moving around randomly in the form of a gas. This is called pyrolysis. They then collide with oxygen atoms in the air and give off bluish light in a process called chemiluminescence. They bond with those oxygen atoms and give off heat, adding more heat to keep the process going. This is called oxidation. Some of the newly created molecules are water and carbon dioxide. In fires where there are leftover carbon atoms, such as candle fires, those atoms may clump together to form soot. This soot heats up and glows, giving the flame it's yellowish, orangish and/or reddish color, depending on the temperature.
This video has correct English captions. Click on the CC button at the bottom of the video to see them.
3D models and animation done using Blender 2.63.
To follow me on Twitter:
twitter.com/#!/RimStarz
http://rimstar.org
Music used throughout:
Decisions Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0
ISRC: USUAN1100756
Original Earth image from NASA/courtesy of nasaimages.org.
What fire is, using a candle flame as an example. This starts with the fact that the wax in a candle is made up of long hydrocarbon molecules that when heated, by a match for example, break up into carbon and hydrogen atoms and start moving around randomly in the form of a gas. This is called pyrolysis. They then collide with oxygen atoms in the air and give off bluish light in a process called chemiluminescence. They bond with those oxygen atoms and give off heat, adding more heat to keep the process going. This is called oxidation. Some of the newly created molecules are water and carbon dioxide. In fires where there are leftover carbon atoms, such as candle fires, those atoms may clump together to form soot. This soot heats up and glows, giving the flame it's yellowish, orangish and/or reddish color, depending on the temperature.
This video has correct English captions. Click on the CC button at the bottom of the video to see them.
3D models and animation done using Blender 2.63.
To follow me on Twitter:
twitter.com/#!/RimStarz
http://rimstar.org
Music used throughout:
Decisions Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0
ISRC: USUAN1100756
Original Earth image from NASA/courtesy of nasaimages.org.
