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.
We Need to Move to Safer Energy Sources. The Deepwater Horizon oil rig burns in the Gulf of Mexico on April 21, 2010. On the one-year anniversary of the BP Deepwater Horizon oil disaster and the Massey coal mine explosion in West Virginia, we are reminded how dangerous our dependence on fossil fuels can be. A large cost of our reliance on these energy sources is the death or injury of workers in these industries.