The Sierra Club How Many Knowledge Cards

by Posted on

This quiz application from the Sierra Club offers an insight into numbers in nature. The ancients argued, or so we are told, about how many angels could dance on the head of a pin. This intriguing application investigates more earthly, and more satisfying, questions. For one thing, they are answerable. The urge to enumerate is as strong in Homo sapiens as the imperative to name. Indulging our fondness for tallying, How Many? addresses 48 aspects of animal behavior, earth science, and our doings on the planet in a Q&A format that is a surefire remedy against boredom. A portion of this mobile application s sales proceeds are donated to the Sierra Club for environmental protection causes.

App Name:The Sierra Club How Many Knowledge Cards

App Version:1.0.5

App Size:167 KB

Cost:US$4.99 USD