Lego Earth And Moon Rotation Youtube A lego orrery featuring the earth, moon and sun. i tried to focus on making the rotation and movements as accurate as possible without making it too complex . Built for the 2015 mocathalon, uploaded here for general posting purposes.
Lego Earth And Moon Orbit Technic Review Youtube Accurate 1:1 earth rotation (counterclockwise when viewed from above) and 1:28 moon revolution (28 rotations of input per 1 counterclockwise revolution of moon). Each rotation of the crank represents one day, and the earth rotates once with every turn. the moon orbits the earth every 28 days, the sun makes a full rotation every 25 days, and the earth orbits the sun every 375 days. some notes on the construction. for the large turntable, i’m using the newest 60 tooth version. Turning the crank clockwise causes the platform (with the earth and moon) to orbit around the sun, the moon to orbit around the earth, and both the earth and sun to rotate. i counted roughly 3 earth rotations (days) per turn of the crank, and therefore about 27 days per lunar orbit around the earth (actual value ~29.5), and about 13 and a bit lunar periods per year (actually ~12.4). One rotation of the crank arm is 1 earth day (24 hours if you will). the moon rotates around the earth every 28 days (slightly longer than the 27.22 days it takes in real life). the sun rotates once every 25 days (24.47 days in real life). lastly the earth rotates around the sun once every 375 days (in real life it takes 365.256 days).
Lego Earth And Moon Mechanical Model Youtube Turning the crank clockwise causes the platform (with the earth and moon) to orbit around the sun, the moon to orbit around the earth, and both the earth and sun to rotate. i counted roughly 3 earth rotations (days) per turn of the crank, and therefore about 27 days per lunar orbit around the earth (actual value ~29.5), and about 13 and a bit lunar periods per year (actually ~12.4). One rotation of the crank arm is 1 earth day (24 hours if you will). the moon rotates around the earth every 28 days (slightly longer than the 27.22 days it takes in real life). the sun rotates once every 25 days (24.47 days in real life). lastly the earth rotates around the sun once every 375 days (in real life it takes 365.256 days). But we know each rotation of the earth in that frame is 365.5 364.5 days, so the new moon to new moon (synodal) month is 27*365.5 364.5 = 27.07 days haoyang wang march 11, 2024 at 2:32 pm. Summary. 42179 planet earth and moon in orbit, 526 pieces. £69.99 $74.99 €79.99 | 13.3p 14.3c 15.2c per piece. buy at lego ». an interesting and educational static model that works well but it's not very elegant. accurate movement. a welcome change from vehicles. bulky mechanism. expensive.
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