Along with leptons, quarks are basic building blocks of all matter. According to the standard model of particle physics, fermions (quarks and leptons) are the basic constituents of all matter. In the standard model there are six types of quarks and six...

In 1869, Dmitri Mendeleev proposed the periodic law as a method for organizing the known chemical elements in a systematic way. The periodic law was important to chemists because it brought some order into the study of the 50-odd elements then known....

A quark (IPA: /kwɔrk/) is a generic type of physical particle that forms one of the two basic constituents of matter, the other being the lepton. Various species of quarks combine in specific ways to form protons and neutrons, in each case taking...

Adobe has unwrapped Creative Suite 3 on March 27. The next generation of the Creative Suite has become a pile of products that covers almost every creative need. The product range that can be yours when you buy the most complete package covers everything from...

Stepping carefully down the cruise ship's gangway, I wait for a break in the swelling waves to make my move. With a quick stride, I settle on to a small rubber boat. Within...

A relaxed local restaurant, the sort of place you can drop into without a reservation, where you could eat several times a week: This is what Austrian chef Daniel Angerer and his fiancée Lori Mason had in mind when they opened Klee Brasserie in Chelsea...