Tom Henderson
@physxclassroom
Retired HS Physics and Chemistry Teacher. Content Developer at The Physics Classroom website.
ID: 175090079
http://www.physicsclassroom.com 05-08-2010 16:22:36
2,2K Tweet
1,1K Takipçi
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@physxclassroom
Retired HS Physics and Chemistry Teacher. Content Developer at The Physics Classroom website.
ID: 175090079
http://www.physicsclassroom.com 05-08-2010 16:22:36
2,2K Tweet
1,1K Takipçi
873 Takip Edilen