My Extended Essay During the summer after my IB1 year, I had to write an extended essay as part of my diploma requirements. I was really proud of my work, since I had never written more than four thousand words on just one essay before. Although there are plenty of microlensing resources on the Internet, I decided to post mine since none of them give a general summary on the history of it, the math behind it, and what it really is.

So, to find out what "it" really is, I advise you read my abstract. I'm afraid some of the diagrams did not transfer well from MS-Word, so I was forced to omit some of them.

The Use of Microlensing to Find Dark
Matter in the form of MACHOs

IB Extended Essay: HL Physics
Henry Seeto supervised by Mr. P. Crysler
Upper Canada College
1998 10 01

Abstract
Essay

References are included near the bottom of the essay.

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