Search and compare thousands of words and phrases in British Sign Language (BSL). The largest collection online.
How to sign: a theory that explains scientific observations
"scientific theories must be falsifiable";
Within this category: associationism, atomic theory, atomism, big-bang theory, cell theory, corpuscular theory, functionalism, game theory, germ theory, Gestalt psychology, information theory, kinetic theory, nebular hypothesis, organicism, planetesimal hypothesis, quantum theory, relativity, supersymmetry, theory of dissociation, theory of evolution, theory of gravitation, theory of indicators, theory of inheritance, uncertainty principle, wave theory