This mechanical planetarium built with LEGO bricks has an accuracy of 99.8%

LEGO assemblies combine fun, imagination and sometimes even science. The result is pure magic.

The mechanical planetariums, also called orrerías, date back to the 18th century. recreate the movement of the planets of the solar system using gears similar to old clocks.

Two experienced LEGO set designers, Chris Orchard and Brent Waller, have designed a spectacular Mechanical solar system planetarium using only LEGO partsand a motor to move the orbits. The accuracy of the planetarium is 99.8%.

It also has an exquisite retro design and a large number of details. The set adds around 3,000 pieces and took 15 months to design. You can see it in action in this video:

The eight planets of the solar system are represented in the planetarium, with the Sun at the center. The orbits are not to scale, of course, because the distances between the planets are enormous.

Using a built-in motor and internal gears, each planet describes its position relative to the rest, and to the Sun, with 99.8% accuracy. In other words, we see the exact position in the orbit of each planet, relative to the Sun.

At the base of the mechanical planetarium, you can see clocks, each for a planet. But they don’t mark the hours, but a solar year. In other words, how long does it take for each planet to make a complete revolution around the Sun.

Logically, since Mercury is closer and its orbit is smaller, its annual clock will go faster than the others.

It is an exceptional design that not only surprises with its precision, but also with its aesthetics. Chris Orchard and Brent Waller submitted their creation to LEGO Ideas, where they are collecting signatures for LEGO to market it.

They need at least 10,000 votes for LEGO to consider doing this, and they already have 9,361, so everything indicates that the project will be reviewed by a LEGO expert. Of course, it deserves to reach the stores and anyone can build it.

Arline J. Mercier