MathBench > Measurement

Logs and pH

Your turn with messy numbers

This time, try to guess the log scale value of some real (biologically important) measurements. Remember, it's really not possible to calculate the logs exactly. You're just trying to get an intuitive "feel" for how logs correspond to numbers in the real world...


diameter of an E. coli bacterium
E. coli
log(0.000002) =
   

 

very close!
0
pretty close ...
0
not so close
0

 

Here is a link to a really cool website which shows the scale of the universe from the really, really small to really, really big. It is definitely worth a look:

http://htwins.net/scale2/