Shelter from wind and water.

3 themes, thinking, doing, dreaming

The woodframe eco-house.

Sails, oakframe.

Wing house rotating into the wind.

My own home, with some adaptations

Some basic models that might interest you

Oak frame combined with open plan lay-out

Maple leaf house

Transportation one of the most important developments of the 20th century

Recumbant bicycles, general info, ideas and designs.

Recumbant bicycles, how to build your own.

Some bicycle idea's

Walking cycle, with Theo Jansen machanism

Cycling while looking in any direction you like

Side-by-side or sociable bicycle.

The slippery car project, decreasing energy waste.

The streamlined electric motorcycle website.

The Killinger und Freund, Friedenstaube.

Dymaxion, ecomobile and carver.

Gravity racers know something about aerodynamic.

Bitri scooter built in serie by my uncle.