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.
April 20 was a triumphant evening for British Petroleum and the crew of Transocean's Deepwater Horizon. Floating 52 miles off the coast of Louisiana in 5000 feet of water, the oil rig was close to completing a well 13,000 feet beneath the ocean floorâan operation so complex it's often compared to flying to the moon.