Examlex
Helium nuclear reactions take place in a shell around the core of a low-mass star during its
Survey Research
A method of gathering information from a sample of individuals through their responses to questions, often used in the social sciences.
Group
A group of people who communicate with each other, possess common traits, and together feel a sense of belonging or identity.
National Census
A systematic enumeration of a population, typically conducted by a government, to collect demographic, social, and economic information at a specified time.
Statistics Canada
The national statistical office of Canada, responsible for producing statistics to help better understand the country, its population, resources, economy, society, and culture.
Q3: The star Zeta Pegasi (in the constellation
Q25: The main-sequence lifetime of a star with
Q59: In the language of general relativity, what
Q85: The diameter of a typical neutron star
Q108: Which of these galaxy types contain little
Q116: Suppose astronauts are in a spaceship traveling
Q138: What is astronomers' present belief about the
Q176: The 2004 discovery of two pulsars in
Q181: The mathematical form of the Hubble law
Q246: How is the length of a star's