Natural science sciences, there are three great branches of "natural science" which stand apart by reason of the variety of far reaching deductions drawn from a small number of primary postulates — they are mechanics, electrodynamics, and thermodynamics. Today, natural sciences are more commonly divided into life sciences, such as botany and zoology; and physical sciences, which include physics, chemistry, geology, astronomy, and materials science. Natural science Natural science is a branch of science concerned with the description, prediction, and understanding of natural phenomena, based on empirical evidence from observation and experimentation. Mechanisms such as peer review and repeatability of findings are
Science and inventions of Leonardo da Vinci include the uterus of a pregnant cow, the hindquarters of a decrepit mule and studies of the musculature of a little dog. Leonardo wrote: All the branches of a tree at every stage of its height when put together are equal in thickness to the trunk [below them]. The science of botany was long established by Leonardo's time, a treatise on the subject having been written as early as 300 BCE. Leonardo's study of plants, resulting in many beautiful drawings in his notebooks, was not to record in diagramatic form the parts of the plant, but rather, as an artist