The Trippensee® planetarium and the motorized Trippensee® planetarium are orreries that perform the same functions; the difference being that the motorized model contains a spring wire connection to the red arm which moves the planetarium arm to revolve the Earth, moon, and Venus balls around the sun. These planetariums are durable and reliable gear-and ladder-chain driven so that the Earth maintains it’s 23-
1/2° axis, revolves around the sun and rotates on it’s axis, all at the same time. The moon revolves around the Earth and keeps it’s one face toward the Earth. Venus also revolves around the sun, and can be positioned by hand, to show phases and where it is located as the morning or evening star. The Trippensee models have been produced for over 90 years and provide many visual demonstrations that clarify the relationships of these elements of the solar system, in motion, for everyone interested in learning more about the universe around them. The chain and gear drives provide for an exceptionally long life making them models that are unequaled in the marketplace today. An instruction book, Elements of Astronomy and Physical Geography, is included. Height: 14”; Arm length: 16.5”; Sun: 5.75”; Earth: 3”.
Among the phenomena which the models show are the following:
• Phases of the moon
• Eclipses of the sun and moon
• Causes of night and day
• Seasons in various parts of the Earth
• Reasons for winter and summer
• What the solstices and equinoxes are
• The axis of the Earth and its relationship to the North Star
• About the tides and their causes
• The Earth’s equator, latitude, longitude and meridians
Galilea Moon Phase Clock
Give the sun, the moon, and the stars with this timeless assortment of heavenly gifts. The Galilea Moon Phase clock keeps track of the Moon's many phases during one Lunar cycle (approximately 29 days). It features a standard quartz movement clock and
...Item: U49774
$ 83.00
Laser Stars
The Laser Stars™ projector will fill any dark space with a super sharp spectacle of animated stars and cloud formations. It will even surprise you with the occasional shooting star.
Created from powerful green laser and holographic technology
Item: U49763
$ 200.00
$ 181.00
Omega Levitron®
Levitron Amazing Anti-gravity Top!
Spin the top and watch it float freely above it's base. It is amazing to see as it floats freely in space with no strings attached. Challenging to operate, but suitable for ages 8 and up. Makes a memorable gift.
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Item: U49405
$ 35.00
Space Clock
Stare out into the universe from the comfort of your own home.
Karlsson is a renowned Dutch clock brand and is sold all over the world. In 1999 Karlsson joined the inspire through the design contributions of many Dutch and internationally renowned designers
...Item: U49790
$ 33.00
Weights & Measurements
