Postman states that the greatest invention of the nineteenth century was the idea of invention itself (Postman, 1992, p42). The telephone has had a big impact on the world. Ong claims the telephone has brought us into the age of secondary orality (Ong, 1982, p. 133).
The Earthâs axis, the imaginary line around which the earth turns in its daily rotation, is slightly tilted. The seasons are caused by this tilt and by the fact that the Earthâs axis always holds the same location in space.
The four seasons of the year are winter, spring, summer and autumn. Each of these seasons occur depending on the Earth's position in its orbit and the tilt of the planet as it moves through its orbit. Keep Learning.