Stemwurks

Description:Academy Models 18130 Da Vinci PaddleboatThe paddle wheels operated by mechanical spring. Two pedals set the mechanism in motion that are linked to a belt, creating a reciprocating motion to rotate the paddles

Description:Academy Models 18135 Da Vinci Solar Powered Turtle Ship This turtle-shaped warship played a major part in the Sa-Cheon Naval Battle during Im Jin War (1592-1598), and successfully led the country to victory. It featured iron plating, guns on...

Description:Academy Models 18136 Da Vinci Armored CarThe Da Vinci Armoured Car is an interpretation of the original drawing, designed during the Renaissance era by the famous Italian scientist and artist, Leonardo da Vinci. This spring powered kit is a...

Description:Academy Models 18137 Da Vinci CatapultCatapults were first invented during the era of the Ancient Greeks and Romans, however it was during the Middle Ages that they came to prominence. Leonardo da Vinci developed a range of innovative war...

Description:Academy Models 18142 Da Vinci Spingarde Field Artillery Gunp The Da Vinci Spingarde Field Artillery Gun (Approx 12"L). The retractable cannon launched targeted projectiles. Due to its ability to move in all directions it had a broad field of...

Description:Academy Models 18146 Da Vinci Flying Machine Leonardo Da Vinci developed a number of designs that were well before their time. His vision of vertical flight with his spiral helicopter, paddle wheel-powered vessels, and the early armored car...

Description:Academy Models 18150 Da Vinci ClockLeonardo Da Vinci developed a number of designs that were well before their time. Here is a representation of da Vinci's clock which uses a horizontal pendulum and weights for power. This kit is completely...

Description:Academy Models 18174 Da Vinci Rolling Ball Timer Plastic Model KitIThe Da Vinci Rolling Ball Timer kit was inspired by a sketch of an escapement mechanism drawn by Leonardo Da Vinci. Using the laws of motion and the concepts of gravity and...

Description: Magcraft NSN0582 Rare-Earth Disc Magnets, 0.75 in. Diameter x 0.25 in. Thick, 4-Count These disc magnets are 0.75 inch (19.1mm) diameter and 0.25 inch (6.4mm) thick. They are magnetized through the thickness. They are composed of grade 40...

Description: Magcraft NSN0586 Rare-Earth Ring Magnets, 0.5 in. Outside Diameter x 0.15 in. Inside Diameter x 0.125 in. Thick, S, 12-Count These countersunk ring magnets are 0.500 inch (12.7mm) outside diameter, 0.150 inch (3.8mm) inside diameter and 0...

Description: Magcraft NSN0601 Rare-Earth Disc Magnets, 0.25 in. Diameter x 0.1 in. Thick, 50-Count These disc magnets are 0.250 inch (6.4mm) diameter and 0.100 inch (2.5mm) thick. They are magnetized through the thickness. They are composed of grade 40...

Description: Magcraft NSN0610 Rare-Earth Block Magnets, 0.25 in. Long x 0.25 in. Wide x 0.1 in. Thick, 50-Count These block magnets are 0.25 inch (6.4mm) long, 0.25 inch (6.4mm) wide, and 0.1 inch (2.5mm) thick. They are composed of grade 40 neodymium...