Physical constants

posted in: Physics 0

In science, a physical constant is a physical quantity whose numerical value is fixed. It can be constrasted to a mathematical constant which is a fixed number that does not directly involve a physical measurement. There are many such constants … Read More

Birds of Africa

posted in: Birds 0

The taxonomy of this list adheres to James Clements’ Birds of the World: A Checklist, and reflects all changes to that work until July, 2005. Taxonomic changes are on-going. As more research is gathered from studies of distribution, behavior, and … Read More

The Lego Movie

posted in: Movies 0

Directed by: Phil Lord, Chris Miller Produced by: Dan Lin, Roy Lee Screenplay by: Phil Lord, Chris Miller Story by: Dan Hageman, Kevin Hageman, Phil Lord, Chris Miller Based on Lego Construction Toys Starring: Chris Pratt, Will Ferrell, Elizabeth Banks, … Read More

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