04:22
Language, Meaning and Truth
Philosopher W.V. Quine explores what he calls "the meaning of meaning." Using the formula for momentum as an example, he talks about the temporal nature of supposed statements of truth, arguing that what appears to be "true" today may not be conside...
02:58
Is Time Real?: Scientific Theories of Time: Albert Einstein
In his first theory of relativity developed in 1905 Einstein came up with the idea that both space and time are relative to the state of motion of the observer. Time is not as absolute and universal as we thought;it can be changed by motion. Each ob...