Henk Van Hoof - Inventions & Enigmatic Issues
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(Updated: november 7, 2000)

How to Repair a Leaky Loo
The dripping started due to pitting corrosion in the nipple facing the rubber seal of the valve. How can we prevent this?

The Tilting Window
How to devise a simple tool to keep it ajar in a maximum number of positions.

The Optimization Problem in Sports
Every cyclist intuitively understands that one has to spend more energy going uphill and then to recover a bit while going down. But where exactly is the optimum? And how does it depend on steepness up and down? And on the length of the slope? What about wind in stead of or together with slope? And what about running in stead of cycling? And how does the human body differ in optimizing from the fuel economy of motorized vehicles?

Some more are under construction

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With any comments on or questions about this site, you can E-mail: h.van.hoof@hccnet.nl