Led Magnifier

What advancement in design led to an improvement in Galileo’s magnifier?

ILL GIVE YOU POOINTS, THIS I AN EMERGENCY ! :O :O
DOESN’T ANYONE KNOW THE ANSWER ? :O IM SERIOUSLY GONNA FAIL SCIENCE IF I DONT HAVE THIS IN BY TOMORROW !
I TXTED ALL MY FRIENDS, AND THEY ALL ARE AS CLUELESS AS I AM. MY TEACHER DIDNT EVEN TEACH US ANYTHING, HE JUST GAVE US A BUNCH OF QUESTIONS, AND WE NEVER EVEN LEARNED THIS STUFF, AND ITS NOT IN THE TEXTBOOK ! OMG HELP PLEASE
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I don’t know for sure, but I’m guessing it was the telescope (see first paragraph in the following link):

http://www.kidsnewsroom.org/elmer/infocentral/frameset/inventors/galileo/page2.html

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