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43,56

Classic Sandglass

0 Review (s)

The origin of the Hourglass is uncertain. It is believed that the Roman armies used them during the night; It was also said that they were invented by a French monk at the end of VIII century. At that time, Charlemagne, the king of the francs, had one so great that only needed to turn around every 12 hours. Certain sand dial were used commonly during navigation trips to establish the duration of t..

9,00

Colour in Motion Timer

1 Review (s)

A colorful way to demonstrate density. This tabletop demonstration has four chambers, each filled with a different colored liquid. Flip the demo over, and the colors will start to switch places, without mixing! Magic or density? Demonstrates density, color mixing, and insolubility. Dimensions: 13 cm x 7 cm x 2 cm

249,90

Construcción Robotics Pro

0 Review (s)

Programmable robots are part of our every day life and our children are the future innovators that will be challenged to take robotics to the next level! The education system worldwide is evolving to incorporate robotics in the classroom so that students understand the fundamentals of this new technology while developing the necessary building and programming skills associated with robotics. At th..

23,50

Crookes Radiometer

4 Review (s)

The Crookers radiometer was invented in 1875. It has a grinder with 4 paddles, one side of the vane is blackened and to another is bright or white. When you receive an external radiation, the black side absorbs radiation and the other reflected it, which makes the first palette moves away from the source of radiation. This effect produces a constant rotation of vanes, with a speed that depends o..

25,00

Crookes Radiometer 19 cm.

3 Review (s)

The Crookers radiometer was invented in 1875. It has a grinder with 4 paddles, one side of the vane is blackened and to another is bright or white. When you receive an external radiation, the black side absorbs radiation and the other reflected it, which makes the first palette moves away from the source of radiation. This effect produces a constant rotation of vanes, with a speed that depends on ..