He claims that popular artists such as Adele, Jason Aldean and Wiz Khalifa are making more than $1 million every year, while some -- like Drake and Lil Wayne -- are raking in almost $3 million annually.
The University of Queensland pitch drop experiment, demonstrating the viscosity of bitumen. The pitch drop experiment is a long-term experiment that measures the flow of a piece of pitch over many years. Pitch is the name for any of a number of highly viscous liquids that appear solid, most commonly bitumen. At room temperature, tar pitch flows at a very low rate, taking several years to form a single drop.
Water vapor is the most abundant green house gas but it is the most ineffective at holding heat. CO2 is the second most abundant and is relatively good at holding heat but not as good as methane but methane is only present in trace amounts and is not increasing in amount as greatly as CO2.