Atom
Fundamental unit of matter, composed of a central nucleus (protons and neutrons) and electrons moving around it.
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To understand the key concepts covered in Lumina.
Why a glossary ?
Some scientific terms need clear explanations to better understand Lise Meitner, nuclear fission, scientific ethics, and the Matilda effect. This glossary offers simple, useful definitions.
Key concepts
Atomic nucleus
Central part of the atom containing protons and neutrons. It plays a key role in stability and nuclear reactions.
Learn moreNuclear fission
Reaction in which an atomic nucleus splits into two smaller nuclei, releasing energy and neutrons.
Learn moreUranium 235
Isotope of uranium capable of undergoing nuclear fission, used in some reactors and historically central to nuclear energy.
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Neutral particle present in the nucleus. During fission, released neutrons can trigger a chain reaction.
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Property of unstable nuclei to transform spontaneously, emitting particles or radiation.
Learn moreMatilda effect
Concept describing the tendency to minimize or attribute to men the scientific contributions of women.
Learn moreScientific ethics
Reflection on the moral responsibility of researchers, especially when discoveries can have dangerous uses.
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