1905 introductions

physical law relating mass to energy

Procaine is a local anesthetic drug of the amino ester group. It is most commonly used in dental procedures to numb the area around a tooth and is also used to reduce the pain of intramuscular injection of penicillin. Owing to the ubiquity of the trade name Novocain (without the "e" in the original German patent) or Novocaine (with the "e" in the US patent), in some regions, procaine is referred to generically as novocaine. It acts mainly as a sodium channel blocker. Today, it is used therapeutically in some countries due to its sympatholytic, anti-inflammatory, perfusion-enhancing, and mood-e

color space

[[Image:Models of cucurbiturils.jpg|thumbnail|400px|Computer models of CB[5], CB[6], and CB[7]. Top row is the view into the cavity and the bottom is the side view]]

device for measuring small temperature changes

historical intelligence test