If you are having difficulty remembering the details of the Earth's geological structure or the nature of major minerals and rock types, you can consult this excellent introductory course offered as part of MIT's...
How do plants and animals grow, one might ask? Jorge Picado of the Universidade de Coimbra recently looked into the question of how seashells grow, and has produced this lovely article which is offered as part of the...
André Heck is a project manager at the Faculty of Science of the Universiteit van Amsterdam, and he recently contributed this thoughtful article to the "Loci" project at the Mathematical Sciences Digital Library. In ...
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