Windturbine sailing

Sailing straight into the wind is possible with  windturbine/windmill propulsion.
The turbine is mostly directly mechanically coupled to the propellor.
Her are some examples to get you inspired?

Nuvinci continous bicycle transmission

Fallbrook technologies have invented a very interesting continuos variable bicycle drive.

As far as I am concerned there are two very clever bits:
- using canting ball to transmit power and change drive ratio.
- using a compressable liquid  to assist in this powertransmission.

Have a look at the pictures and their website.

Fabric formed concrete

Found this very interesting technique, with potentially nice achitectural and structural consequences.
Fabric formed concrete, youtube lecture.

Organic architecture to the limit, glass fibre reinforced lightweight concrete, moulded on geotextiles.
Natural creased vaulted ceilings, which are naturally buckle resistant.

Laser on hydrofoils

website, laser foiling.
youtube laser foiling.

What sailing class is next ;-)

Decoson, Decopod motorcyce;

Totally over the top, but very nice is Randy Johnson  the decoson.
 The art deco inspired motorcycle, have a look at how he fabricates the fantastic helmet.