physical symptoms definition, physical symptoms meaning | English dictionary. Search also in: Web News Encyclopedia Images. physical. adj. 1 of or relating to the body, as distinguished from the mind or spirit. 2 of, relating to, or resembling material things or nature. the physical universe. 3 involving or requiring bodily contact.
Time travel is the concept of movement (often by a human) between different points in time in a manner analogous to moving between different points in space, typically using a hypothetical device known as a time machine.on-technological forms of time travel had appeared in a number of earlier stories such as Charles Dickens ' A Christmas Carol. Historically, the concept dates back to the early mythologies of Hinduism (such as the Mahabharata).
Einstein's theory of general relativity predicted that the space-time around Earth would be not only warped but also twisted by the planet's rotation. Gravity Probe B showed this to be correct.Credit: NASA View full size image.vents that occur at the same time for one observer could occur at different times for another. As he worked out the equations for his general theory of relativity, Einstein realized that massive objects caused a distortion in space-time.