doubling times

Day #1 - 8,000 BC ~ 5 million
8000 BC - 1650 AD ~ 500 million
1650 - 1850 ~ 1 billion

billions and billions . . .

1 billion = Day #1 to 1850
2 billion = 80 yrs ( 1850-1930 )
4 billion = 44 yrs ( 1930-1974 )
5.5 billion = 1993
6 billion ~ 24 yrs ( 1974-1998 )
8 billion ~ 2020

We are now adding - - -

1 billion people ~ 11 yrs

source:
dr. gary wallace / dr. alan baharlou -- of eiu's geology department wrote an article in charleston time-courier where this data was listed. --- 12 / 11s / 93 -- 12 / 10s / 95

THE RULE OF 72
This concept allows you to calculate the 'doubling time' of populations; salaries; inflation; etc.

If you got a 5% raise every year -- most people would say you would double your salary in 20 years. Not true. It would be about 14 years. This is because dividing 100% ( raise ) by 5% per year --- doesn't take into account the "compounding of the interest."

So - - - divide the percent increase in raise or population or inflation -- into 72 -- and get the "doubling time."

This means that ANY increase will result in a doubling of population or salary or . . . EVENTUALLY.
The population of the USA has increased from 132 million when i was born in 1940 to 264 million by the time is was 52-ish. So that only works out to less than 1.4% per year --- but you see --- the net result is that doubling DID occur. Do you now understand the concept of ZPG -- Zero Population Growth ? And the NEXT time we double -- it won't add a mere 132 million to the population --- try 264 million people. Think it is hard to find a parking space -- to get a dentist appoint now ? Think there is a lot of crime, now ? Think there is a gap between the "haves" and "have nots," now?

"no government or academic expert has the faintest idea how to provide adequate

food

housing

health care

education

gainful employment

to such exploding numbers of people crowding into such mega-cities as

Mexico City
Sao Palo
Calcutta
Seoul
Cairo
Bangkok

with their inadequate housing, lack of health facilities & overcrowded schools."

little baby glutton

that cute little baby you see at the mall -- or in your sister's arms -- is a consuming machine -- who will in its 70 years of life will need ...

23.6 metric tonnes ( 26 tons - 2# / day ) of water
79,500 liters ( 2l,000 gallons - 0.8 gal / day ) of gasoline
4,600 kg ( l0,l50 # - 0.4 # / day ) of meat
l2,700 kg ( 28,000# - 1.1 # / day ) of milk and cream
4,080 kg ( 9,000 # - 0.4# / day ) of wheat

hope there is enuff to go around

a/w sts issues: p14 -- 12/3f/93 -- 12/10s/ 95