Sunday, August 05, 2012

Soap on the water

As advertised, Barkingside 21's bike-powered generator M.I.R.A.  - which stands for Magnetic Induction Rotary Appliance - made its first public appearance at the Fairlop Oak Charity Bike Ride at Fairlop Waters, which this year was in aid of children's cancer charity CLIC Sargent and London Air Ambulance.

Thanks to the ingenuity of our Secretary Alan Howe, M.I.R.A. is now rigged up to charm the local kids with a bubble machine. After a few relocations when the wind changed direction, there were bubbles everywhere.

What is it with little children and bubbles?

Matt holds the bubble blower aloft to achieve pretty bubbles in the air rather than on the floor.

Matt Goddin, as the wind changes direction once again.

Roy 'No-Hands' Emmett.

B21 secretary, electronics mastermind and toddler magnet Alan Howe.

There's an inverter to convert 12 volts DC to 240 volts AC, and to maintain a steady 12 volts DC (so as not to break the bubble machine) there's also regulator which takes a variable DC input of - depending on how fast you pedal - between 8-40 volts but smooths that to a steady 12 volts DC.  Thinking ahead to Christmas time, we're thinking about getting a regulator which allows us to cap the current above 12v, so we can power the lights and music in our original plan.

And later in the pub, chit chat about sideburns somehow turns into a chest hair exhibition.

If you're interested in M.I.R.A, get in touch -

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