The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...

The colors of rubies and emeralds are so striking that they define shades of red and green – ruby red and emerald green. But ...

Space is home to a great many oddities, and even chemistry gets strange out there. In fact, there are even some molecules ...

Through materials science, we can tailor existing substances or engineer completely novel materials to generate new and ...

Satellite laser ranging (SLR) had been operated at a pulse repetition frequency (PRF) from ∼10 Hz to 10 kHz; the ultra-high PRF of SLR (UH-SLR) is a trend of development. In this study, an alternate ...

GISAXS measurements were made on beamline 8-ID at the Advanced Photon Source at Argonne National Laboratory using a wavelength of 1.6868 Å, a sample-to-detector distance of 1,300 mm and a ...

Many Black inventors struggled through hardship, poverty, and, in some circumstances, slavery. Still, they prevailed and proved their genius to the world. The following are but a few of the many ...