Meaning: Use up, consume fully. Classified under: Verbs of eating and drinking. Synonyms: expend; use. Context example: The legislature expended its time on school questions Expend entails doing...: consume; deplete; eat; eat up; exhaust; run through; use up; wipe out (use up (resources or materials)) Troponyms (each of the following is one way to expend):
Supernova nucleosynthesis. Supernova nucleosynthesis is a theory of the production of many different chemical elements in supernova explosions, first advanced by Fred Hoyle in 1954. The nucleosynthesis, or fusion of lighter elements into heavier ones, occurs during explosive oxygen burning and silicon burning processes. Those fusion reactions create the elements silicon, sulfur, chlorine, argon, sodium, potassium, calcium, scandium, titanium and iron peak elements: vanadium, chromium, manganese, iron, cobalt, and nickel.
Okay, that was more than three, but you get the point. A supernova is more significant than a nova, but less so than a hypernova. Supernovae are very bright and generate bursts of radiation that can briefly outshine a whole galaxy before declining in brightness over many weeks or months.n this period a supernova can emit as much energy as the Sun might over its entire lifetime. How Supernovae are Studied. By using optical telescopes, astronomers can approximate the amount of light generated by a supernova.