msumner Group Title why do bigger animals use energy more efficiently than smaller ones? one year ago one year ago

1. msumner Group Title

$E=M^{\frac{ 3 }{ 4 }}$

2. modphysnoob Group Title

|dw:1364609079923:dw|

3. modphysnoob Group Title

|dw:1364613658132:dw|

4. modphysnoob Group Title

by the way , I think you meant to say |dw:1364614621701:dw|

5. msumner Group Title

it is an equation provided from the fractal study of energy consumption efficiency by mass

6. modphysnoob Group Title

because unit for mass and energy doesn't match up hence they can equal each other

7. msumner Group Title
8. msumner Group Title

so our M is not mass :X since mass is small m in physics

9. modphysnoob Group Title
10. Nubia9811 Group Title

Because Bigger animals need more energy to survive and smaller animals don't need as much because of their size.

11. msumner Group Title

no… M is still mass in that equation E is the energy consumption in calories? if we say that is the rate of metabolism (q) then what amount of energy required - how much calorie per gram? I think I stumbled on a very complicated living system processes :/ and may need a decade to get to fully understand

12. msumner Group Title

@Nubia9811 we know that bigger animals require more energy, but we are talking about the rate of efficiency. Meaning that big animals, like elephant, use energy more efficient than small ones like mouse. Let us say we need 10,000 mouse to be the same mass of an elephant, the sum of consumption of energy will be higher for the mouse compared to one elephant though they of the same mass.

13. modphysnoob Group Title
14. msumner Group Title

can you do that alongside where E=M?

15. modphysnoob Group Title

yes, http://www.wolframalpha.com/input/?i=Plot%5Bx%2Cx%5E%283%2F4%29%2C%7Bx%2C0%2C5000%7D%5D of course , we can see , it is much lower as mass increase

16. msumner Group Title

17. modphysnoob Group Title

yes, we have to look for as mass get really big

18. msumner Group Title

now let us focus on the question: why?

19. modphysnoob Group Title

that would be a deep question , wouldn't it?