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  • Planet Mechanics show

    Planet Mechanics

    (02:15)
  • Heart of the Problem show

    Heart of the Problem

    The next morning, and the whole bike has to be stripped down to get to the heart of the problem.

    (02:55)
  • Air Tanks show

    Air Tanks

    Jem’s working on the mounts for the air tanks. They’re coated with carbon fibre, a material that can’t be welded. He...

    (02:55)
  • Eco Workshop show

    Eco Workshop

    The next morning and the Planet Mechanics’ eco-workshop is up and running. Dick and Jem are in the south of England on their...

    (02:52)
  • Scrap Heap show

    Scrap Heap

    Dick and Jem have come to this scrap heap to collect an old vehicle to recycle.

    (02:52)
  • Air Powered Moped show

    Air Powered Moped

    So they’re building a moped powered by fresh air. They’ll replace the petrol engine with an air motor and the gas tanks...

    (02:55)
  • The Ultimate Test show

    The Ultimate Test

    Fortunately they still have the oil they made earlier. So it’s time for the ultimate test: will that oil fire up the grain...

    (01:47)
  • Gas Tank show

    Gas Tank

    A few weeks later, Dick and Jem are back and can’t wait to see how much the gas tank has risen.

    (02:57)
  • Scrap Lawnmower show

    Scrap Lawnmower

    To drive the press, they’re salvaging this scrap lawnmower and will convert its petrol engine to run on biogas.

    (02:57)
  • Grain Dryer show

    Grain Dryer

    Is there anything else on the farm they can use to fuel the grain dryer?

    (02:36)
  • Cow Slurry show

    Cow Slurry

    Andy has tipped them off about a tank. They could fill this with cow slurry and use it as a digester to make biogas.

    (02:25)
  • Engine Concerns show

    Engine Concerns

    They’re worried that the engine might not be strong enough but to get the boat onto the plane, Alberto will need to give it...

    (02:19)
  • A Need for Speed show

    A Need for Speed

    The solar-powered taxi takes forty minutes to travel from Certosa to the heart of Venice. Taking its time is fine for tourists...

    (03:00)
  • Marathon Test show

    Marathon Test

    Alberto has designed a marathon test for the solar-powered water taxi. The route will take at least two hours and they’ll...

    (02:54)
  • Sanpierotta show

    Sanpierotta

    Alberto wants to base their water taxi on one of the boats that was made in his boatyard. He’s lending them a traditional...

    (02:51)
  • Tailfin show

    Tailfin

    The wind turbine is almost complete. The final stage is to weld the tailfin to the generator. The tailfin will keep the...

    (05:00)
  • Handy Work show

    Handy Work

    With Dick’s runner now complete, he has to figure out a way of directing the water at it. By creating a nozzle for the end...

    (04:49)
  • Jem Races Ahead show

    Jem Races Ahead

    While Dick waits anxiously for an answer, Jem has raced ahead and started work on his generator. But how exactly will it...

    (03:59)
  • Wind Turbine show

    Wind Turbine

    Having never built a wind turbine before, Jem needs to figure it out on a smaller scale first.

    (04:51)
  • Reconnaissance Mission show

    Reconnaissance Mission

    Having agreed that wind and water are the most promising elements in this inhospitable landscape, it’s time for a...

    (02:47)