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Monthly Archives: May 2008

Random Quote

It is impossible to trap modern physics into predicting anything with perfect determinism because it deals with probabilities from the outset.

— Sir Arthur Eddington (1882 – 1944), In J. R. Newman (ed.) The World of Mathematics, New York: Simon and Schuster, 1956

Video for Metabolism/Energy: Hummingbirds

You can use a number of videos for Biology topic on Metabolism…..

A number of videos of Hummingbirds (taken on vacation in Arizona) are available at


You can easily EMBED these videos in your presentations.

Some key facts about Hummingbirds:

Hummingbirds feed on the nectar of plants and are important pollinators, especially of deep-throated, tubular flowers. Like bees, they are able to assess the amount of sugar in the nectar they eat; they reject flower types that produce nectar which is less than 12% sugar and prefer those whose sugar content is around 25%. Nectar is a poor source of nutrients, so hummingbirds meet their needs for protein, amino acids, vitamins, minerals, etc. by preying on insects and spiders, especially when feeding young.