In the first half of the twentieth century, modern physics emerged out of a watershed of theory and discovery concerning the realm of the atomic nucleus and subatomic energies and speeds. From the profound insights of Albert Einstein's...

During the 1500s, Polish astronomer Nicolas Copernicus (1473-1543) proposed that Earth orbits around the sun rather than vice versa. Copernicus's view was seen as a challenge to widely held beliefs about the universe. These beliefs, however,...

When did the study of physical science begin? The Sumerians, who created the first civilization in Mesopotamia around 3200 B.C., were ruled by a relatively complex government, yet considered the natural world to be ruled by a variety of gods. By 2000...

The end of the eighteenth century found two basic Newtonian ideas triumphant. Scientists carefully experimented with natural phenomena and measured important features of these happenings, trying all the while to establish quantitative relations among...

Physical science is an encompassing term for the branches of natural science and science that study non-living systems, in contrast to the biological sciences. However, the term "physical" creates an unintended, somewhat arbitrary distinction, since...

Rising global temperatures could melt Latin America's glaciers within 15 years, cause food shortages affecting 130 million people across Asia by 2050 and wipe out Africa's wheat crop, according to a U.N. report released Tuesday.The report, written and reviewed by hundreds of scientists, outlined dramatic...

If Congress again takes up divisive immigration reform this summer, tech firms hope that one of their pet issues -- hiking temporary visas for highly skilled foreign workers -- is included.High-tech companies have been lobbying Congress for more H-1B visas granted to college-educated foreign workers....

The seven astronauts who make up the crew of space shuttle Endeavour have been fitted together and then rearranged repeatedly since they were first selected in December 2002.Two astronauts who were part of the original six, including the now-infamous Lisa Nowak, were reassigned. Then Richard...