Proponents point to the enormous energy density of the fuel (the amount of energy contained per unit).

FORBES: The Future of Nuclear Power in the United States

At this point, passage and enactment of Breast Density Inform Legislation is far and away the best path to making this happen.

FORBES: Beware Overreaching Government Efforts to Detect Breast Cancer

While proponents of deregulation point to lower fares between high density hubs, these bargains are subsidised by exorbitantly high fares for flights between the thousands of smaller cities across the country.

ECONOMIST: Letters

At some point in Hong Kong, no matter how careful you are to keep to quiet streets, the density of the city will start to close in.

BBC: Hong Kong: Where worlds collide

Figure 2 in the accompanying power point file shows historical storage areal density (AD) growth for HDDs (this is directly related to the amount of digital storage that can be put on a disk in a hard disk drive) from Q1 2000 through Q1 2011.

FORBES: Why Government Regulators Should Approve Hard Disk Drive Company Consolidation