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.
The explosion and fire aboard the Deepwater Horizon rig, 50 miles off the Louisiana coast, set off a spill that continued for 87 days, fouling large areas of the Gulf Coast of the United States with 206 million gallons of crude oil.