Byg en animeret timer, der kører på vandkraft! Konstruér et fungerende vandhjul, der drejer, når tyngdekraften trækker vand gennem en tud, og se derefter energien overføres til en gøgler-automat. Fyld den øverste kop, skub flowporten åben, og din to-minutters timer går i gang: hjulet drejer, figurerne bevæger sig, og en and dupper op i den nederste kop, mens øsen fyldes og tipper. Ingeniørteknologi, bygget af dig.
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The water wheel spins beautifully once you get the flow right, and watching it drive the cuckoo bird is genuinely mesmerizing. It’s not a quick build, but every step feels rewarding, and the gravity-powered mechanism works exactly as described.
Zoe★★★★★
My kids and I spent a whole afternoon building the water wheel together, and the moment the spinning wheel made that cuckoo bird pop out, they actually cheered. The gravity-fed spout is cleverly designed and surprisingly smooth to watch, even if you have to be patient with the fill.
Scarlett★★★★★
The cuckoo bird actually pops out and taps its beak when the wheel spins, which had my kids squealing with delight. The water-powered mechanism is clever and simple enough for a 9-year-old to manage with minimal help. We've run it three times already and the motion is surprisingly smooth every time.