The new look, which includes comfortable seating areas and flat-screen TVs, is intended to have a more inviting feel and is part of the company's goal of positioning itself on the higher end of the fast-food industry.

NPR: Wendy's Stands By Outlook Amid Transformation Push

Mongolian spots (technically named congenital dermal melanocytosis) are flat bluish-green, gray or light brown areas where cells called melanocytes have been trapped in a layer of the skin called the dermis.

CNN: What are Mongolian spots?

But in areas where local calls are free and ISPs offer unlimited Internet access for a flat monthly fee anyway, the no-charge Internet model has less appeal.

CNN: Giving It All Away

Dr Stefanov and his colleagues (or, rather, their computers) looked for the boundaries between densely developed areas, which reflect a lot of light because of all the edges and flat surfaces that people like to create, and those with more vegetation, which appear dark by comparison, as nature prefers curves.

ECONOMIST: Urban geography

The flat fields to the north have more in common with the wheat- and corn-growing areas of the mid-west.

ECONOMIST: America��s focus group

Goal for flat land is 20-30 hectares (49.4 to 74.1 acres) and for mountainous areas 10-20 hectares (24.7 acres to 49.4 acres).

FORBES: "Basic Plan" for Agricultural Reform Unveiled