Gram staining. Gram staining or Gram stain, also called Gram's method, is a method of staining used to differentiate bacterial species into two large groups (gram-positive and gram-negative). The name comes from the Danish bacteriologist Hans Christian Gram, who developed the technique.
Horizon Oil Sands. Horizon Oil Sands The Horizon Oil Sands project (or Horizon) is an oil sands mining and upgrading project. Horizon is 100% owned and operated by Canadian Natural Resources Limited.
(BP). On April 20, 2010, while drilling at the Macondo Prospect, there was an explosion on the rig caused by a blowout that killed 11 crew members. On April 22, 2010, Deepwater Horizon sank while the well was still active and caused the largest offshore oil spill in U.S. history.