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Explaining the plummeting cost of solar power: Photovoltaic module costs have dropped by 99 percent over 4 decades – Science Daily

Explaining the plummeting cost of solar power: Photovoltaic module costs have dropped by 99 percent over 4 decades  Science Daily

The dramatic drop in the cost of solar photovoltaic (PV) modules, which has fallen by 99 percent over the last four decades, is often touted as a major success …

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TW Solar Robot Science Education Assembly Kit

  • This solar powered robot can be transformed into 14 different robot modes
  • Powered by the sun - no batteries required
  • Two levels of building skill levels so the beginner and experienced robot builder will be equally engaged
  • Excellent addition to a home-school curriculum
  • The robot kit provides unique accessories and parts that make robot move on land or water or both.
The solar powered robot kit can be transformed into 14 different robot modes including vehicles and bugs all in cartoon comic robot styles. Movement is powered by solar panel. Speed is determined by the intensity of sunlight it receives. Educate your kids with renewable energy toys, and give them a future of hope that they can really get involved. Fun in the Sun Series proudly presented by Solar Wholesale, #1 recommendation! Figurine sizes: Wheelie: 6.7x3.7x3.7"; Car: 5.1x2.7x4; Surfer: 11x 6.9x3"; Yachting: 7.4x10x4"; Boat:7.2x9.9x3.5"; Wheel Chair: 5.9x3.5x3.7"; Turtle: 4.8x3.3x2.6"; Quadruped: 3.4x2.8x3.3"; Beetle: 4.5x3.7x3.3"; Dog: 4.7x2.8x3.5"; Crab: 3.6x3.5x3.1"; Zombie: 3.3x3.3x5.4"; Roly-poly:3x3.7x3.7"

Price:

Edu-Toys Tree of Knowledge Solar Power Science Kit

  • Comes with 150 challenging experiments
  • Convert solar energy
  • Build a solar electric generator, motor, water heater, furnace, thermometer, crane and solar energy mobiles
  • Perform unique experiments with color optics, electroplating, stroboscopes, thermodynamics and More patterns
  • For ages 10 and above
Drill Through Rocks... with this rock- and shell-driller for the budding (or already fully bloomed) crafter or jewelry designer. Call it a semi-toy that really works. Made like a drill press, it's designed to drill holes in small stones or sea shells for stringing on chains or mounting on jewelry. You get the drill, an AC adapter, an ounce of shells, 3 ounces of polished stones, a replacement drill bit, a jar of glue, and an assortment of (20) key-rings, chains, earring wires and rings. Has (2) safety locks and a protective dome to prevent injury, and uses water to lubricate the drill. Can be used by children age 8 and over, with adult supervision. Drill holes in rocks for your own collection or make crafts or jewelry for family and friends. Features exclusive safety dome to protect small fingers. Just drill your favorite stones and let your imagination run wild. Rock Driller Includes: Drilling Machine, 4oz Polished Rocks, Drill Bit (replacement) and AC Adaptor. Also for Jewelry making: 18" Silver tone necklace chain, 18" Black leather-like cord necklace, (3) Key Chains, (3) Pairs hanging earring wires, (12) Jump ring connectors, and Glue.; From the Manufacturer; Drill holes in rocks for your own collection or make crafts or jewelry for family and friends. Features exclusive safety dome to protect small fingers. Just drill your favorite stones and let your imagination run wild. Rock Driller Includes: Drilling Machine, 4oz Polished Rocks, Drill Bit (replacement) and AC Adaptor. Also for Jewelry making: 18" Silver tone necklace chain, 18" Black leather-like cord necklace, (3) Key Chains, (3) Pairs hanging earring wires, (12) Jump ring connectors, and Glue.

Price: $ 29.95

7-in-1 Rechargeable Solar DIY Science Educational Solar Energy Robot Car Educational Developmental Toys Baby Kids Training Toy