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DU Home » Latest Threads » Forums & Groups » Topics » Environment & Energy » Environment & Energy (Group) » A simple graph: The prima... » Reply #29

Response to joshcryer (Reply #6)

Mon Oct 14, 2013, 03:18 PM

29. If you suck at graphing here's an alternative

If you have a percent annual growth rate, the doubling time (in years) is 70/rate. So for instance, if your growth rate is 5% per year, the doubling time is 35 years. That's an approximation based on the same math as exponential growth. (70 is close to 100 times the natural log of 2...)

This way you can decide how many doublings constitutes your magical explosion and multiply by the doubling time to get your answer...

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GliderGuider Oct 2013 OP
dimbear Oct 2013 #1
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CRH Oct 2013 #5
joshcryer Oct 2013 #6
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joshcryer Oct 2013 #11
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kristopher Oct 2013 #18
GliderGuider Oct 2013 #20
kristopher Oct 2013 #21
joshcryer Oct 2013 #32
joshcryer Oct 2013 #33
GliderGuider Oct 2013 #36
LineLineLineLineNew Reply If you suck at graphing here's an alternative
caraher Oct 2013 #29
kristopher Oct 2013 #7
GliderGuider Oct 2013 #9
kristopher Oct 2013 #10
GliderGuider Oct 2013 #13
kristopher Oct 2013 #15
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muriel_volestrangler Oct 2013 #23
kristopher Oct 2013 #26
joshcryer Oct 2013 #34
GliderGuider Oct 2013 #14
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phantom power Oct 2013 #30
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