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STEM Technical Bricks: Experiments-CROSSBOWS & CATAPULTS

STEM Technical Bricks: Experiments-CROSSBOWS & CATAPULTS

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HK$229.90
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  • 銀行轉帳 (匯豐銀行)
  • 銀行轉帳 (富邦銀行)
  • 順豐速運 - 順豐站取件
  • 順豐速運 - 順豐營業點取件
  • 順豐速運 - OK便利店取件
  • 順豐速運 - 7-11便利店取件
  • S.F. Express - EF Locker Pickup
  • 順豐工商/住宅派遞
  • 預約到店(荃灣區)自取
  • 付費送貨服務

Description

● Learn the ancient mechanism of siege weapons.
● Understand basic concepts of physics: force, energy and motion.
● The safety designed bolt powered by rubber band makes it safe to launch.
● Observe how the designs and power output have evolved and improved.
● 10 models: crossbow, trebuchet, catapult, etc.

In this kit you can build both crossbows and catapults.
A crossbow is a medieval type of “gun” like bow. With this kit you can build up to 5 different types of crossbows with different designs and technical constructions. The safety projectile is called a bolt. With an elastic rubber band you can pull back and get a power that can be released by pulling a tricker device that releases the bolt and it flies towards its target.
A catapult is a type of medieval trebuchet weapon that can shoot heavy objects and knock down Castles. With this kit you can build up to 5 different types and learn how they work and how advance the technic was to make it work. From a traction trebuchet to a counterweight trebuchet and to the most advanced trebuchet with a floating arm that provides max power to the object that you shoot.
The learnings of how technical advanced the Romans and other ancient societies where is ever interesting for most kids.

DIMENSIONS 330 x 65 x 225 mm
AGE

8+
MODELS

10
COMPONENTS

110

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