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Thomas Dorsey

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Paper pencil

In 1895, the first U.S. patent for a paper pencil was issued to Fredrick E. Blaisdell of Philadelphia, Pa. His patent No. 549,952 was accompanied by No. 550,212 on the same date on a machine for manufacturing pencils.

The teacher of the earth scien...

The teacher of the earth science class was lecturing on map reading. After explaining about latitude, longitude, degrees and minutes the teacher asked, "Suppose I asked you to meet me for lunch at 23 degrees, 4 minutes north latitude and 45 degrees, 15 minutes east longitude...?"
After a confused silence, a voice volunteered, "I guess you'd be eating alone."
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