Rocket power is examined.
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Rip currents are examined.
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Stem-cell research is probed.
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Jem makes a diamond.
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Jem attempts to fly a homemade airplane; Liz explores how hormones and blood sugar affect energy and mood; Dallas probes whether drinking eight glasses of water per day is necessary.
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The health risks of wireless signals are examined. Also: wire-free electricity.
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The science of managing, predicting and understanding crowds of people is examined.
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A probe into the safety of digital-storage formats; tips on how to properly wipe a computer's memory.
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A probe into whether modern life is damaging to ears. Also: Safety-conscious scientists put noise back into driving; and Liz learns to like the sound of being sick.
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An investigation into the high price of gas and whether science can be used to make free fuel. Also: Liz experiences life on an oil rig; and Jem and Dallas compete to create fuel alternatives.
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Jems makes homemade glue; Yan creates an optical illusion; Dallas reports on a supersonic car.
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Jem builds a boat out of ice; Dallas investigates comets and tries to make one; Liz researches the science behind hypothermia.
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A square-wheeled skateboard is turned into a motorbike. Also: overcoming jet lag.
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An attempt to break the land-speed record with the help of a fire extinguisher and a go-kart; a look at why clouds are white. Also: CSI scientists.
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A vortex cannon is built to blow over a brick house. Also: an attempt to cook an egg with a piece of newspaper.
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