Look here for works of
art, an index of useful books on science, myth, art, and teaching, and a
selection
of poems on topics ranging from weather to myths related to the planets
and the stars.
xMagnetic polarity reversal : A magnetic polarity reversal is a change of the earth's magnetic field to the opposite polarity. This has occurred at irregular intervals during geologic time.
Scientists know that more of the Sun’s energy gets to our planet than leaves. It hasn’t always been this way. More energy is sticking around as heat because there are more heat-trapping greenhouse gases...Read more