(Marked in Fig. 1 by a shorter bar). The rest of about 45 elements are found in small quantities in nature and they are more or less of scientific interest, the decorative stones of the universe ...

The conclusion in 1902 by Sir Ernest Rutherford and myself with regard to the element thorium was of this ... has actually been crossed by science. The first phase of the study of radio-active ...

Transposable elements, or "jumping genes", were first identified by Barbara McClintock more than 50 years ago. Why are transposons so common in eukaryotes, and exactly what do they do? In addition ...

Dr. Laura Gabayan, author of “Common Wisdom: 8 Scientific Elements of a Meaningful Life,” is using many of the skills she studied and then wrote about, as she and her family rebuild after they ...