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).
There are investigations into travel to the future and travel to the past, although travel to the past is more problematical and receives more attention. There are also investigations of the logical possibility of time travel, the physical possibility of time travel, and the technological practicality of time travel.The most attention is paid to time travel that is consistent with current physical theory such as Einstein's general theory of relativity.In science, different models of the cosmos and the laws of nature governing the universe imply different possibilities for time travel.here are investigations into travel to the future and travel to the past, although travel to the past is more problematical and receives more attention. There are also investigations of the logical possibility of time travel, the physical possibility of time travel, and the technological practicality of time travel.