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Lea 1 year ago
#6 is a makesh#t and cheap device for catching insects due to ecological surveys. Doing these surveys is mandatory in Germany before building bigger infrastructures such as Highways and Bridges to determine for wich critters new habitats have to be found.
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Lea 1 year ago
Lea,

*Makeshift
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Iona 1 year ago
#11
Not buying it. There are numbers on the chart with solid distinct colors that are most definitely NOT primes.
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Cynthia 1 year ago
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97
Check!
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Ollie 1 year ago
#11 is related to multiplication.
for example 2 is blue...3 is red...5 is yellow
so, for example, 15 is 1 yellow and 1 red, this is 3x4
the 16 has 4 strips of blue, this is 4x2
the 25 has 2 strips of yellow, this is 5x5

they could never be prime numbers.... there are plenty of them that aren't....
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Ollie 1 year ago
Ollie, ..."for example, 15 is 1 yellow and 1 red, this is 3x4" ....... i mean 3x5 (I clicked on the button to the side)
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Ollie 1 year ago
Ollie,"this is 4x2" lol....it is 4x4

every time I write I only see that I wrote it wrong
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Wilber 1 year ago
#8 Fart tubes

“Found in my math teacher’s room — 100 squares with varying patterns and colors. No patterns seem to be the same.”

Answer: “It’s a prime factorization chart and a demonstration of The Sieve of Eratosthenes. Note that primes are of solid distinct color.”

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What Are These Things?!
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