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.
âTorrey Canyonâ oil spill. by gary_satanovsky. No doubt about it, the Deepwater Horizon disaster in 2010 was bad. Millions of gallons of crude oil spilled into the Gulf Coast. It was the largest oil spill disaster since the Exxon Valdez spill in 1989.