The new online Historical Dictionary of Science Fiction probes the speculative corners of the lexicographic universe. By Jennifer Schuessler “Warp speed” may be a term of the moment, thanks to the ...

Question: when is a strong force not a strong force? Answer: when it’s anywhere outside the atomic nucleus. That at least is the case with the strong nuclear force, one of four fundamental forces of ...

Gravity is the attraction between two objects that have mass or energy, whether this is seen in dropping a rock from a bridge, a planet orbiting a star or the moon causing ocean tides. Gravity is ...