Relativity
/ˌrel.əˈtɪv.ə.ti/
Definitions
2 meaningsThe dependence of something on another thing; the quality of being relative.
/ˌrel.əˈtɪv.ə.ti/
The state or fact of being relative; dependence on something else for meaning.
The relativity of time means that an hour can feel long or short depending on what you're doing.
💡 Simply: It's like saying that how you feel about something changes depending on the situation. For example, whether a day is long or short depends on what you're doing! A short day at the beach is happy!
👶 For kids: When something only makes sense when you compare it to something else.
More Examples
Cultural norms often reflect the relativity of values and behaviors.
Philosophical debates often center on the relativity of morality.
How It's Used
"The concept of truth in postmodernism is often based on the relativity of perspective."
"Her feelings about the situation were based on the relativity of her personal experiences."
A scientific theory, particularly Einstein's theories of special and general relativity, that deals with the relationship between space and time, and the nature of gravity.
/ˌrel.əˈtɪv.ə.ti/
The theory of relativity: a scientific theory.
Special relativity deals with the relationship between space and time.
💡 Simply: It’s a super smart idea about how space and time work, like how fast you’re moving changes how time feels. Imagine a super fast train, how things appear change when travelling at great speeds!
👶 For kids: A super smart science idea about how fast things go and how space and time are connected.
More Examples
General relativity describes gravity as a curvature of spacetime.
The theory of relativity has profound implications for cosmology.
How It's Used
"Einstein's theory of special relativity revolutionized our understanding of space and time."
"The general theory of relativity explains gravity as a curvature of spacetime."
From Late Latin *relativitas*, from *relativus* ('relative') + *-itas* (suffix indicating a state or quality). The term gained prominence with Einstein's theories of relativity in the early 20th century.
The term 'relativity' became widespread with the popularization of Einstein's theories in the early 20th century, but the concept of relative motion existed earlier in physics.
Memory tip
Think of the 'relative' aspect – how things are *related* to each other and depend on context.