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What shape did Copernicus assume for planetary orbits in his model?
Answer
Circles
What did Galileo observe about Venus that supported the heliocentric model?
Answer
Phases of Venus
Which celestial body did Copernicus place at the center of the universe?
Answer
The Sun
What is the title of Copernicus's book outlining the heliocentric model?
Answer
De revolutionibus orbium coelestium
Who proposed the heliocentric model in the 16th century?
Answer
Nicolaus Copernicus
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What did Galileo observe about Venus that supported the heliocentric model?
Answer
Phases of Venus
What is the title of Copernicus's book outlining the heliocentric model?
Answer
De revolutionibus orbium coelestium
Who proposed the heliocentric model in the 16th century?
Answer
Nicolaus Copernicus
In what month and year did the first human trial of penicillin begin?
Answer
February 1941
Who first synthesized penicillin in a laboratory?
Answer
John C. Sheehan
Which species of Penicillium was used in large-scale penicillin production?
Answer
Penicillium chrysogenum
What unit was originally used to measure penicillin potency?
Answer
Oxford unit
Which mycologist identified Fleming's original mold as Penicillium notatum?
Answer
Charles Thom