Alabama carries out nation's 3rd nitrogen gas executionGrayson was executed by nitrogen gas, marking a controversial method of capital punishment in Alabama.
Alabama about to execute third man this year with controversial nitrogen gasAlabama's use of nitrogen for executions faces intense scrutiny due to prior instances of distress during the process.
How the Guinness Brewery Invented the Most Important Statistical Method in ScienceThe Guinness brewery is known for a multistep pour process and innovative techniques like adding nitrogen gas to create a velvety head on their stout.