What technology did Aristotle use to study the universe?

Aristotle did not use technology in the modern sense, as he lived in ancient Greece (384–322 BCE) before the advent of advanced scientific instruments. Instead, he relied on direct observation, logical reasoning, and philosophical inquiry to study the universe. Aristotle utilized tools like the astrolabe for astronomical observations, but his primary method was to analyze natural phenomena and reason about their underlying principles. His work laid the foundation for future scientific thought, influencing generations of scholars.