cultivation Science. cultivation Science is an ancient vineyard practice. It destroys weeds and facilitates other vineyard operations such as irrigation. Contrary to common belief, cultivation Science does not conserve soil moisture; however, the resulting destruction of weeds does conserve moisture. Discs or chisel-tooth cultivators are used, although some vineyards are still plowed. Heavy disc harrows are used to turn under weeds and cover crops. Weeds have been and are sometimes controlled with oil sprays or chemicals, usually diuron or monuron.
It is in this respect that science fiction may be making its greatest contribution to society. Because science is of prime importance in today's world, it is vital that as many people as possible understand as much of it as they can. It is difficult, however, to find writers who not only comprehend science but who can write well enough to undertake the task of explanation. Former science fiction writers may be the richest source; already a number of them have become prominent authors of nonfiction science materials.
The most significant activities in science education during the past year involved the continuing efforts of scientists and science educators throughout the world to share their particular work and accomplishments with others. Over 180 science and mathematics education projects described in the 1967 and 1968 annual reports of the International Clearinghouse on Science and Mathematics Curricular Developments, a joint activity of the American Association for the Advancement of Science (AAAS) and the University of Maryland's Science Teaching Center, indicate the extent of this cooperation.