Hydroponics Online Store



Hydroponic Systems

Hydroponic Grow Lights & Bulbs

Hydroponic Tents & Grow Boxes

Hydroponic Ballasts

Grow Light Reflectors

Hydroponic Nutrients

Grow Media Rocks

Hydroponic Pumps

Hydroponic Pots

Hydroponic Books

Meters

Hydroponic Exhaust Fans

Hydroponic Seeds

Hydroponic Foggers

Home Store Blog Forums FAQs Lesson Plans Pictures


Search:



Orrery,Solar System model,Sun-Earth-Moon Movement For Sale


Orrery,Solar System model,Sun-Earth-Moon Movement



This item has been shown 0 times.

Buy Now

Orrery,Solar System model,Sun-Earth-Moon Movement:
$89

    Orrery,Solar System model,Sun-Earth-Moon Movement Model,geography teaching/demo Instrument.Please tell me your phone number after your purchase,which is needed for shipping.

    • Use:
      This model represents the relative movement of the sun,the earth,and the moon,used in teaching to demonstrate the relation among the relative movement of the three celcstial bodies,thereby ilucidating such natural phenomena as the originatiou of days and nights,seasons,and climatic zones,likewise solar and lunar eclipses as well as the changing phases of the moon.

      In this model,the sun can light,and the light is drived by dry batteries.And the Earth-moon can revolve around the sun and self-rotate,drived by dry batteries or man'hand .Also,the moon will revolve around the earth while the earch revolve around the sun.

      Parameters:
      metal base's diameter:16.2cm
      sun's diameter:10.2
      max length:56cm
      max height:37cm

      How to use it:
      This Sun-Earth-Moon movement model can be drived by electricity.the sun can be lighted.
      The sun need two #5 batteries,so does the speed controler.

      The price is low,so you can not expect it's good as an orrery of more than hundreds dollars.

      we welcome wholesalers to contact us.

    • Parts to assembly this model .

    • We accept paypal only

    • Usually we ship it by Fedex,DHL or AUX,shipping time is about 7 to 12 days,affected by distance and wether.If where you live is a remote adress express company tell me extra fee for remote place is required,buyer should undertake it,but normally this is rare.


Buy Now


 

Hydroponic Forum Discussions:

Solenoid valves for stock solution control
Root problems and slime balls
Brown tips?
Seeking Advice on Vertical Farming
Basic Ebb & Flow, looking for advice on vertical farming.
Need fertilizer high in potassium!
Drilling holes for net pots, the correct way
FOR SALE: BC Northern Lights "Bloombox" w/ all the bells and whistles!
PPM problem
Zucchini leaves "bleaching"?
Advice on DWC
watering time

Popular Hydroponic Items:


Vintage Scientific Instrument,  L.e. Knott Apparatus Co. Galvanometer, 1904,1906 picture
Vintage Scientific Instrument, L.e. Knott Apparatus Co. Galvanometer, 1904,1906


Rare-vintage * Radiosonde Temperature Evaluator * Felsenthal Instruments * Used picture
Rare-vintage * Radiosonde Temperature Evaluator * Felsenthal Instruments * Used


 Meteorological Radiosonde Viz Mark Ii  * 2013 * Never Used * Not Tested picture
Meteorological Radiosonde Viz Mark Ii * 2013 * Never Used * Not Tested


Vintage Cenco Decade Capacitor Test Unit picture
Vintage Cenco Decade Capacitor Test Unit


Vintage Cenco Decade Capacitor Test Unit picture
Vintage Cenco Decade Capacitor Test Unit


T2: Vintage Yale Becton Dickinson Glass 5 Cc Hypodermic Syringe 2311 picture
T2: Vintage Yale Becton Dickinson Glass 5 Cc Hypodermic Syringe 2311


Vtg Metal Dr.john Morgan Mortar. No Pestle picture
Vtg Metal Dr.john Morgan Mortar. No Pestle


Vintage Red & Blue Litmus + Methyl Violet  Corked Glass Tubes - E.h.sargent  picture
Vintage Red & Blue Litmus + Methyl Violet Corked Glass Tubes - E.h.sargent


Rare - Curta Calculator Type Ii #527243 Very Nice Condition - 1964 Vintage As Is picture
Rare - Curta Calculator Type Ii #527243 Very Nice Condition - 1964 Vintage As Is


Vintage Inclined Differential Manometer, G.rosenmuller, Dresden picture
Vintage Inclined Differential Manometer, G.rosenmuller, Dresden