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Wondrous Wednesday 20: Cicadas and Benjamin Banneker

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Summary

Cicada week. Lifecycle: emerge from ground, shed shell, fly to trees, mate, female lays eggs in branch (damages it), branch falls, baby cicadas burrow underground for 17 years. Benjamin Banneker (born 1731, free black man, Baltimore County, astronomer/mathematician) - first colonial scientist to document 17-year cycle. First experience at 17: thought they'd cause famine, tried killing them. At 34: realized not harmful. Wonder: how will chickens handle cicadas?

Transcript

0:00 welcome to ANI in the air under the tent wondrous Wednesday where I talk about
0:04 something wondrous today is cicada week so I'll talk about cicadas I actually
0:11 don't know that much about them because it's been 17 years since I've I've seen
0:16 the last big brood I do see them occasionally every year of course they
0:19 some do come out but you know they come out in large numbers so from my
0:25 understanding they kind of pop out of the ground shed their shell maybe get
0:32 another show um and then fly up to trees do something to help produce some eggs
0:42 and then the female lays some eggs in a tree branch that eventually becomes
0:52 damaged and blackened and it it it then falls off and the you know the little
1:04 baby cicada stuff then burrow into the ground and disappear so that's their
1:09 basic life cycle and I thought I would read the words of Benjamin Banneker who
1:23 was born a free black man in Baltimore County in 1731 so mostly known as an
1:32 astronomer and mathematician and wrote a letter to Thomas Jefferson about you
1:36 know race relations but he apparently also was the first as far as people can
1:45 tell a scientist of the colonies to
1:51 basically figure out the 17 years cicada cycle so let's see I think this was
2:05 17 yeah supposedly it was 17 when this occurred although it doesn't doesn't
2:23 quite make sense so there's an article in the Baltimore Sun that I'm kind of
2:27 just riffing off of says he was born in 1731 then he had his first experience
2:32 with cicadas at the at the age of 17 and 1749 which doesn't make any sense
2:37 because 17 plus 31 is 40 well I guess I guess it depends on when they were
2:49 person was born exactly and the skaters came out so yeah I guess it must have
2:55 been before the 18th birthday all right okay I mean yeah so I guess that can
3:00 make sense anyway 17 and 1749 and he wrote the
3:08 following about this first experience I then imagined they came to eat and
3:13 destroy the fruit of the earth and would occasion of famine in the land I
3:17 therefore began to kill and destroy them but soon saw that my labor was in vain
3:21 therefore gave over my pretension so yeah when he first saw them it was like
3:28 what there's all these things there this demon brood that's gonna eat stuff and
3:34 then it came like 17 years later I then being about 40 34 years of age had more
3:39 sense than to endeavor to destroy them knowing they were not so pernicious to
3:43 the fruit of the earth so basically he realized from the first experience that
3:47 they weren't going to eat up everything that's some demons that will spawn and
3:52 that they can come out and but eat a bunch of stuff and everything kind of
3:56 survives and then he writes their periodical return is 17 years but they
4:02 like the comments make a but short stay with us the female has a sting in her
4:07 tail as sharp and hard as a thorn with which she perforates the branches of the
4:12 trees and in them holes lays eggs the branch soon dies and falls then the egg
4:17 by some occult cause emerges a great depth into the earth and there continues
4:22 for the space of 17 years the stinger is of the female is not harmful to humans
4:31 it's just harmful to the trees and then
4:41 yeah I'm not sure if there was any more the writing but yeah so yeah he there
4:54 were a lot of his writings that were destroyed due to a fire which is quite
5:00 unfortunate but yeah it seems like he might be one of the first or the first
5:07 to write about cicadas and their 17 year life cycle so I think that's kind of
5:12 nice and some chickens are approaching me you know I do wonder how the chickens
5:17 are going to handle the cicadas I imagine the stage with the cicadas with
5:23 a quite vulnerable to chickens but hopefully they won't get all of them
5:32 maybe enough to keep the noise from deafening us all right well so that was
5:38 wondrous Wednesday all about cicadas and yeah and a bit of the history of the
5:46 study of them all right well I guess that is enough of that you have all good
5:56 one and I will see you when I see you