cog wheels experimental kit
WK 5850
Regular price $76.00Cog wheels are fascinating - they allow the transmuting of speed from fast to slow. In this kit, the principles of gears and chronometers are also covered.
Assembly and play recommended for 10+ yrs. Particularly suited to Grade 7.
Instructional booklet with explanations in English & German.
Made in Germany.
small waterwheel
WK 1010
Regular price $16.00 Sale price $13.85 Save 13%Small water wheel, also known as the 'backpack water wheel', great to take along for a day's hike. It can find a place in a brook, between two makeshift branch-forks or on suitable stones as bearings. The waterwheel may also be positioned horizontally (with a vertical axis) and water may then fall onto the blades from above as a jet or in a spray to power the waterwheel.
Standalone fun, or connect it up to the hammermill to get some work done! (Hammermill sold separately).
Price is for one waterwheel per kit. Assembly required (which is part of the fun and learning).
Recommended for 5 yrs+.
22 cm diameter when assembled. Weight is 75 grams.
Made in Germany.
trout paddle boat kit
WK 1000
Regular price $58.00The paddle wheels turn the spool, pulling the boat up against the current. Can also be used behind a boat.
Assembly 9 years and older; Play 6 years and up.
Made in Germany.
**Playing with running water is one of the most enjoyable experiences that children can have in nature. But water is not always safe; do not let children play near water unsupervised. Avoid rapid flowing water ways, ravines, sluices, or locks. Packing a spare set of clothes is recommended.
Possible add-ons: Hook the cord up to the turbine, waterwheel or river wheel, and let them do the work to pull the boat in.