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Jo McGrouther

HowStuffWorks "How Fuel Cells Work" - 0 views

auto.howstuffworks.com/...fuel-cell.htm

Fuel cell hydrogen HowStuffWorks Cells video galvanic_cells fuel_cell electrochemistry

shared by Jo McGrouther on 28 Nov 12 - Cached
  • Jo McGrouther on 28 Nov 12
     
    So what exactly is a fuel cell, anyway? Why are governments, private businesses and academic institutions collaborating to develop and produce them? Fuel cells generate electrical power quietly and efficiently, without pollution. Unlike power sources that use fossil fuels, the by-products from an operating fuel cell are heat and water. But how does it do this?
Jo McGrouther

Geography4Kids.com: Earth Structure: Plate Tectonics - 0 views

www.geography4kids.com/...earth_tectonics.html

plate_tectonics evidence fossils

shared by Jo McGrouther on 31 Oct 12 - Cached
  • Jo McGrouther on 31 Oct 12
     
    Easy version.
Jo McGrouther

Evidence for Plate Tectonics - 0 views

csep10.phys.utk.edu/...evidence.html

plate_tectonics evidence fossils

shared by Jo McGrouther on 31 Oct 12 - No Cached
  • Jo McGrouther on 31 Oct 12
     
    Easy version
Jo McGrouther

BBC: Tar, Ice Age Killer - Ice Age Death Trap - YouTube - 1 views

www.youtube.com/watch

tar fossils tar_pit youtube animation bbc

shared by Jo McGrouther on 10 May 12 - No Cached
  • Jo McGrouther on 10 May 12
     
    Journey back in time to the Ice Age and witness one of the world's deadliest animal killers - the tar pit. With enough force and consistency to kill a fully grown mammoth, was crude oil the biggest threat to species survival in early Earth?
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