Model zon, aarde en maan
Kwaliteit
ISO Gecertificeerd
Levering
24-48 uur
Technische Specificaties
1 A standard scientific instrument designed to demonstrate Sun-Earth-Moon relationships. Hand-operated gear drive that moves the Earth's and moon in relation to the Sun. Shows the Earth's rotation, revolution, day and night, tilt of its axis, phases and eclipses of the Moon. Supported by a sturdy base and chrome-plated steel parts. Illustrated English Manual is included. 2 Sun's sphere is illumited with hole to focus a beam of light always to the globe; also indicates the month and phase of the moon in relation to the sun. 3 All spheres (Sun, Earth, Moon) made of plastic; sizes must reflect relative differences of sizes between Sun, Moon, and Earth. Sun's diameter is at least 6".
BO
Beschrijving
1 A standard scientific instrument designed to demonstrate Sun-Earth-Moon relationships. Hand-operated gear drive that moves the Earth's and moon in relation to
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