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What is fire?

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Uploaded on Sep 11, 2011

Fire it up! We explain hot stuff.

Video of a candle in microgravity: http://mix.msfc.nasa.gov/IMAGES/QTVR/...

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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

In this episode we explain why fire is red, gas flames are blue, and why you're too cool to glow.

Music by Nathaniel Schroeder
youtube: http://bit.ly/pakJLE
myspace: http://mysp.ac/qtmZQj

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Top Comments

  • Bob Blitzkrieg

    Bob Blitzkrieg 2 weeks ago

    does this mean that if something is just hot enough, it will radiate light with even shorter wavelengths? Like x-ray or gamma?

    · 47

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  • IluvSD40s

    IluvSD40s 2 days ago

    You're 100% wrong. X rays and gamma rays are all EMR.

    · 12

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    in reply to Benedocta (Show the comment)

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  • Cristian Aguilera

    Cristian Aguilera 14 hours ago

    About lighting up a match in space:

    In one of your videos you said "light has a gravitational pull also" (I'm paraphrasing). If light has a gravitational pull (even a relatively small one), we can say there is something that can tell a match which were to go.

    You may say I am wrong because light spread in all directions; however, light still comes from one direction only; therefore, I am right!

    ·

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  • Cristian Aguilera

    Cristian Aguilera 14 hours ago

    So, when I was told I was glowing, it was actually told in a literal manner. Wasn't it?

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  • Alex P

    Alex P 1 day ago

    ...regardless of how high the temperature got, a black body would not emit radiation with a frequency higher than ultra violet

    ·

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    in reply to Alex P (Show the comment)
  • Alex P

    Alex P 1 day ago

    no, emitted emr was never observed to contain frequencies any higher than that of UV light. It went completely against classical physics, which follows your logic, and formed the basis of quantum physics. It was known as the Ultra Violet catastrophe

    ·

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    in reply to Bob Blitzkrieg (Show the comment)
  • TomBag10

    TomBag10 1 day ago

    So wood fire is glowing soot...

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  • TomBag10

    TomBag10 1 day ago

    Are you saying that the sun doesnt burn?

    ·

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    in reply to ToolShedHermits (Show the comment)
  • ToolShedHermits

    ToolShedHermits 1 day ago

    how is there fire in space without oxygen?

    ·

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  • DeanHakimia

    DeanHakimia 1 day ago

    Welcome to the Sun, friend.

    ·

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    in reply to Bob Blitzkrieg (Show the comment)
  • ashtreylil1

    ashtreylil1 1 day ago

    so....animals that see ultraviolet light see us as giant glowing things?

    ·

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  • WannabeTheAwesomest

    WannabeTheAwesomest 1 day ago

    Faaaaaaaaaaaaaaaaaaaaaaaalse.

    ·

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    in reply to Benedocta (Show the comment)
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