Confronting the Seasons Misconception:

An Angle of Insolation Lab that Actually Works

 

Dr. James R. Ebert, Eric Johnsen, Steve Cohn, Aimee Barnabee, Matt Kaszubski

Earth Sciences Department, SUNY College at Oneonta, Oneonta, NY 13820-4015

E-mail: Ebertjr@oneonta.edu; Phone: (607) 436-3065

 

Materials for One Set Up
(Prices and Item Numbers from NASCO unless otherwise indicated)

 

n      Lamp – assumed already present in lab - $0.00

 

n      Globe - $39.50 (SB32996M)

 

n      Copper wire - $2.70 for 100 ft. (SB10523M - red) – Approx $0.15/set up

 

n      Student DC Milliammeter, Triple 0-5/0-50/0-500 mA) - $11.95 (SB26381M ($9.38 each for 5 or more)

 

n      Solar Cell 0.45 VOC, 400mA - $5.30 (Frey Scientific, Item #15571046)

 

n      Scrap plexiglass for spacer on back of solar cells - $0.00

 

n       Velcro Strip - $1.50/globe

 

n      Total: $58.40

 

n      Without Globe: $18.90

 

n      Without Globe and with 5 or more milliammeters: $16.33

 

Globe w/Velcro, Solar Cell and Milliammeter

Back of Solar Cell with plexiglass spacer and Velcro