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A refracting telescope is the type that uses,as its MAIN optical element,a:
Socrates
An ancient Greek philosopher known for his contributions to ethics and epistemology, famously for employing a questioning method to stimulate critical thinking.
Smallpox
A severe contagious disease caused by the Variola virus, characterized by fever and a distinctive skin rash. It has been eradicated worldwide through vaccination.
Rhazes
A Persian polymath, physician, alchemist, and philosopher, who made significant contributions to the fields of medicine and chemistry in the medieval Islamic world.
Aristotle
An ancient Greek philosopher and scientist whose writings cover a wide range of subjects, including physics, metaphysics, poetry, theater, music, logic, rhetoric, politics, and ethics.
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