Our Menu. Potbelly toasty warm sandwiches have been made the same way since 1977. Our craveable salads are abundant and fresh with amazing ingredients. And be sure to leave room for a hand-dipped milkshake or a cookie baked fresh daily in the shop.
The Pythagoreans. About five centuries B.C. the school founded by the Greek philosopher, mathematician and astronomer Pythagoras flourished in Samos, Greece. The Pythagoreans believed (but failed to prove) that the universe could be understood in terms of whole numbers. This belief stemmed from observations in music, mathematics and astronomy.
Copernicus died the same year his book was published. After 1,400 years, Copernicus was the first to propose a theory which differed from Ptolemy's geocentric system, according to which the earth is at rest in the center with the rest of the planets revolving around it. he word helios in Greek means sun.. Heliocentric means that the sun is at the center. A heliocentric system is one in which the planets revolve around a fixed sun. Thus Mercury, Venus, the Earth, Mars, Jupiter and Saturn all revolve around the sun.