The aim was to encourage the pupils to think about the process involved in designing, building and powering a vehicle, including the application of
alternative fuel forms.
In both sequences, he found thin, discontinuous streaks of kerogen, a waxy precursor to fossil
fuels formed from organic matter and commonly found in much younger shales that are known oil producers.
«We're going to take plutonium oxide that's a powder, turn it
into fuel form, put it in the reactor, make it more radioactive, and then put that into the ground,» Loewen admits, which would also render it unfit for nuclear weapons.
The gas deposits we tap
for fuel form underground when heat and pressure break down buried organic debris into methane and other small hydrocarbon molecules.
Every element in the complex, beautiful illustrations supports the informative text, which offers a welcome, long - term perspective on the subject: how fossil
fuels formed millions of years ago and how their use affects the planet today.
The intense radiation from the fission fragments in the
spent fuel forms a natural barrier to theft or diversion.
Over millions of years, different types of
fossil fuels formed — depending on what combination of organic matter was present, how long it was buried and what temperature and pressure conditions existed as time passed.
By making informed choices, tourists can help sever the financial arteries that
fuel these forms of illicit trade».
The research, accepted for publication in the journal Environmental Hazards, counters assertions that climate change is
fueling this form of severe weather.