Big ideas.Your article "Life on the Scales" (SN: 2/12/05, p. 106) reminded me that taking a bird's song and transposing it down four octaves makes it sound like a whale's song. The opposite is also true. To hear this, go to http://www.mind.net/music/ birdwhaleDemo.mp3. TODD BARTON, ASHLAND, ORE. The article would imply that the only anomaly to the theory that mass equates to longevity is that large-dog breeds live shorter lives than small ones do. I would suggest that there are many more discrepancies. For example, humans outlive out·live tr.v. out·lived, out·liv·ing, out·lives 1. To live longer than: She outlived her son. 2. elephants, horses, and cows, and tortoises outliving humans. And amoebas outlive us all. MCCLELLAN BLAIR, INDIANA, PA. This is tremendously interesting. The scaling law A mathematical relationship which permits the effects of a nuclear explosion of given energy yield to be determined as a function of distance from the explosion (or from ground zero) provided the corresponding effect is known as a function of distance for a reference explosion, e.g. is evidently expressible in a single formula. Why not present it? PATRICK J. ROACHE, SOCORRO, N.M. Here's the equation, I = [i.sub.0] [M.sup.3/4] [e.sup.-E/kT]. I is an individual's metabolic rate Noun 1. metabolic rate - rate of metabolism; the amount of energy expended in a give period basal metabolic rate, BMR - the rate at which heat is produced by an individual in a resting state , [i.sub.0] is a normalization In relational database management, a process that breaks down data into record groups for efficient processing. There are six stages. By the third stage (third normal form), data are identified only by the key field in their record. constant, M is mass, E is the activation energy activation energy, in chemistry, minimum energy needed to cause a chemical reaction. A chemical reaction between two substances occurs only when an atom, ion, or molecule of one collides with an atom, ion, or molecule of the other. , k is Boltzmann's constant, and T is body temperature in kelvins.--E. KLARREICH |
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