This is not the usual home made anemometer that sucks, is inaccurate and reads just high winds. It is very accurate, and reads light breezes as low as 2 kn. But there is one small "trick" to do.

All you need is pingpong balls, a computer power suply fan (I'm sure your power supply broke at least once, anyway it's a couple of euros), and a bycicle speedometer. Mine costs less than 10€ from decathlon. It just reads instat speed. If you want to pimp it, buy one with max, min average speed etc.


tjek de link

ziet er wel lagu uit net een stopwatch

neeeeeeehh dit ga ik ook maken!!! wat cool!!! _/-\o__/-\o_

Komt op mijn dak :)

pc fans heb ik nog zat liggen, pinpongballetjes kunnen geregeld worden en fietscomputer kost hooguit paar tientjes... zie het helemaal zitten :)