There is an apocryphal story about a graduate mathematics student at the University of Virginia studying the properties of certain mathematical objects. In his fifth year some killjoy bastard elsewhere published a paper proving that there are no such mathematical objects. He dropped out of the program, and I never did hear where he is today. He's probably making my cappuccino right now.
This week, a professor named Peter Sheridan Dodds published a new paper in Physical Review Letters further fleshing out a theory concerning why a 2/3 power law may apply for metabolic rate. The 2/3 law says that metabolic rate in animals rises as the 2/3 power of body mass. It was in a 2001 Journal of Theoretical Biology paper that he first argued that perhaps a 2/3 law applies, and that paper -- along with others such as the one that just appeared -- is what has put him in the Killjoy Hall of Fame. The University of Virginia's killjoy was a mere amateur.
The 2/3 scaling law, you see, is intuitively obvious (even if not intuitively obvious to truly defend in detail). The surface area of animals scales as the 2/3 power of their body mass, and so the rate of heat loss scales as the 2/3 power. If metabolic rate scaled as the 2/3 power, few theorists would probably have bothered taking the problem on.
But in the 1930s one Max Kleiber accumulated data that suggested to him that metabolic rate scales as the 3/4 power of body mass. It came to be known as Kleiber's Law. 3/4 is fun. ...to a theorist. 2/3, however, is boring. 3/4 is so fun that theorists had a field day trying to explain it, and there was an especially gigantic spike in the fun starting from 1997, especially from a series of papers by West, Brown and Enquist, and also by Banavar and Maritan.
And that's when buzzkill Dodds came along with his 2001 paper. He re-examined the data, and suggested that a 2/3 law could not be rejected. There may be no 3/4 law to explain after all. Nothing to see here, move along everyone. That paper further put salt in the wound by pointing out that one of the theories deriving the 3/4 law had an error.
Although Dodds is still at it with his current paper, to compensate for his party-downer laurels, he's accumulated some of the most interesting research out there, from rivers to bodies to disease to the happiness of songs over time. (Thanks, Peter, for being a good sport.)
- PHYSICAL SCIENCES
- EARTH SCIENCES
- LIFE SCIENCES
- SOCIAL SCIENCES
Subscribe to the newsletter
Stay in touch with the scientific world!
Know Science And Want To Write?
- Chipotle’s GMO Gimmick Turned Them Into The Public Face Of Science Illiteracy
- Researchers Capture What Thunder Looks Like - Yes, You Read That Right
- The Neuroscience Reason We Fall Over When Drunk
- A physicist’s thoughts on life extension
- Galaxy EGS-zs8-1 - 13 Billion Years Old
- Does This Cow Really Exist?
- Environmental Studies Courses Need More Diversity Of Thought
- "as requested by Professor Hall: Posted at the Conversation original version by Charles Hall I liked..."
- "It lists % of meals and then calories. I can't imagine anyone would not understand that. Do we..."
- "How can you call your website Science 2.0 and not label your x and y axis on your bar graph? Even..."
- "Hi Tommaso, despite a lot of rumors and (more or less) good advertising what you are hinting is..."
- "It's something of a weakness for them when the only defense is 'you haven't excluded it at this..."