Examlex
What is the relationship between a star's mass and its lifetime?
Egoism
A moral philosophy that sees the pursuit of one's own good as the basis of ethical behavior.
Moral Philosophy
The branch of philosophy that deals with questions of right and wrong, ethics, and moral obligations.
Theories
Systematic frameworks for explaining, predicting, and understanding phenomena, often based on general principles independent of the things to be explained.
Greek Philosopher
Refers to scholars from ancient Greece who engaged in critical thinking and discussions about knowledge, life, ethics, and the universe.
Q15: What is the primary visible color of
Q62: How is distance determined to the nearest
Q80: Why are infrared observations useful when observing
Q86: In comparing first magnitude Deneb with second
Q99: The percentage (by mass)of the Sun that
Q99: Pluto has 5 known moons: Charon, Hydra,
Q103: Why is the main sequence main? Why
Q105: The energy of the Sun starts as
Q113: We find that near perihelion, Pluto temporarily
Q129: The Amor asteroids have orbits that:<br>A)stay closer