Power Extras: Broadband
Ellen and Jonathan
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Ellen's Diary (Broadband)
Ellen's Diary (Dial-up)
Hermione's Diary (Broadband)
Hermione's Diary (Dial-up)
Jonathan's Diary (Broadband)
Jonathan's Diary (Dial-up)
Mike's Diary (Broadband)
Mike's Diary (Dial-up)
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Ellen's Diary (Dial-up)
Hermione's Diary (Broadband)
Hermione's Diary (Dial-up)
Jonathan's Diary (Broadband)
Jonathan's Diary (Dial-up)
Mike's Diary (Broadband)
Mike's Diary (Dial-up)
Alternatively, you can read a transcript.
Or choose another challenge from the full list of video diaries.
Illuminating
Discover the vital spark which lets candles work - the science inside power.
Follow Mike as he processes the crushed coal to produce coal gas, as part of the BBC/OU's programme website for Rough Science 6
You'll need the free Quicktime Player to watch this video diary (version 5 or later).
A subtitled version of this video diary is also available.
Content last updated: 11/10/2005
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