Beware of hedgehogs

If the hedgehogs would be able to reproduce by simple division and could do it once a day…
Today - 1 hedgehog
Tomorrow - 2 hedgehogs
The day after tomorrow - 4 hedgehogs
On a 4th day - 8 hedgehogs
On a 5th day - 16 hedgehogs
On a 6th day - 32 hedgehogs
On a 7th day - 64 hedgehogs
On a 8th day - 128 hedgehogs
On a 9th day - 256 hedgehogs
On a 10th day - 512 hedgehogs
On a 11th day - 1024 hedgehogs
On a 12th day - 2048 hedgehogs
On a 13th day - 4096 hedgehogs
On a 14th day - 8192 hedgehogs
On a 15th day - 16384 hedgehogs
On a 16th day - 32768 hedgehogs
On a 17th day - 65536 hedgehogs
On a 18th day - 131072 hedgehogs
On a 19th day - 262144 hedgehogs
On a 20th day - 524288 hedgehogs
On a 21st day - 1048576 hedgehogs
On a 22nd day - 2097152 hedgehogs
On a 23rd day - 4194304 hedgehogs
On a 24th day - 8388608 hedgehogs
On a 25th day - 16777216 hedgehogs
On a 26th day - 33554432 hedgehogs
On a 27th day - 67108864 hedgehogs
On a 28th day - 134217728 hedgehogs
On a 29th day - 268435456 hedgehogs

Average hedgehog is 15 centimeters (6″) long. 15cm*268435456 = 4026531840cm = 40265318,4 meters = 40265 kilometers. The length of Earth’s equator is 2*Pi*6400km = 40192km. So those hedgehogs would be able to encircle equator in a month. Counting further…

On a 30th day - 536870912 hedgehogs
On a 31st day - 1073741824 hedgehogs
On a 32nd day - 2147483648 hedgehogs
On a 33rd day - 4294967296 hedgehogs
On a 34th day - 8589934592 hedgehogs
On a 35th day - 17179869184 hedgehogs
On a 36th day - 34359738368 hedgehogs
On a 37th day - 68719476736 hedgehogs
On a 38th day - 137438953472 hedgehogs
On a 39th day - 274877906944 hedgehogs
On a 40th day - 549755813888 hedgehogs
On a 41st day - 1099511627776 hedgehogs
On a 42nd day - 2199023255552 hedgehogs
On a 43rd day - 4398046511104 hedgehogs
On a 44th day - 8796093022208 hedgehogs
On a 45th day - 17592186044416 hedgehogs
On a 46th day - 35184372088832 hedgehogs
On a 47th day - 70368744177664 hedgehogs
On a 48th day - 140737488355328 hedgehogs
On a 49th day - 281474976710656 hedgehogs
On a 50th day - 562949953421312 hedgehogs
On a 51st day - 1125899906842624 hedgehogs
On a 52nd day - 2251799813685248 hedgehogs
On a 53rd day - 4503599627370496 hedgehogs
On a 54th day - 9007199254740992 hedgehogs
On a 55th day - 18014398509481984 hedgehogs
On a 56th day - 36028797018963968 hedgehogs

Lets presume that there are approximately 50 hedgehogs could be placed on the 1 square meter (7*7). 36028797018963968/50 = 720575940379279 square meters = 720575940 square kilometers. The total surface area of the Earth is Pi*6400km*6400km = 514457600 square kilometers. So those hedgehogs would be able to cover entire Earth in 55 days. DO NOT let the hedgehogs reproduce by simple division!

16 October 2006 | Odd jokes, Science | Comments

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