HEROES 
OF STEM
GALILEO GALILEI was an Italian astronomer, physicist and engineer. He has been called the "father of the scientific method”. Before Galileo, most science was based merely on the opinions of philosophers. Galileo taught us to search for physical proof to support our theories and he encouraged experimentation.
Galileo studied speed velocity and gravity. He dropped two spheres of different weights from the Leaning Tower of Pisa to prove that both objects fell at the same rate, thus disproving Aristotle.
Galileo championed the work of Nicolaus Copernicus who theorized the sun, not the earth, was at the center of our solar system. He met with opposition from doubting astronomers but he defended his views in Dialogue Concerning the Two Chief World Systems (1632).
TRY THIS!
Put on your researcher’s cap and find other cases in which widely accepted scientific principals have been discredited. We can think of six cases. How many can you find? Here’s a clue; one case was a major mistake by 
Albert Einstein.
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STEM GALLERY-1: SAVE 20% ON A SET OF THE SIX HEROES OF STEM PRINTS BELOW. 
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INDIVIDUAL PRINTS
Original Galileo print, signed and numbered by the artist with white boarder and certificate of authenticity.
8.5” x 11” just $9.50
11” x 14” just $18.00
13” x 19” just $24.00
GROUP OF SIX PRINTS
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Six Original Big Idea prints shown in the Gallery Bar above, signed and numbered by the artist with white boarder and certificate of authenticity.
8.5” x 11” just $45.60
11” x 14” just $86.40
13” x 19” just $115.20
DOWNLOADABLE FILES
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One Galileo digital down-loadable file with white boarder. Easy to print in sizes up to 13” x 19” at home or at a local or Internet print shops.    
File: Just $5.99
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Six Big Idea digital down-load files shown in the Gallery Bar above with white boarders. They are easy to print in sizes up to 13” x 19” at home or at a local or Internet print shop. 
 
File: Just $35.90
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