demonstrations_3a4_thermodynamics_3a4b_heat_and_the_first_law_3athermal_gradient_3astart
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File
- Date:
- 2009/05/31 14:59
- Filename:
- featherball.jpg
- Format:
- JPEG
- Size:
- 55KB
- Width:
- 640
- Height:
- 480
- Camera:
- Canon Canon PowerShot S50
- References for:
- Feather In A Vacuum