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writing scientific formulas on black chalkboard

writing scientific formulas on black chalkboard

   

HD mov 1920 x 1080 523 MB 39.00
SD mp4 854 x 480 174 MB 21.00
Web mp4 640 x 360 131 MB 14.00


Writing scientific formulas on black chalkboard, computer generated

ID: 19757   
Rating:
Codec:main: , mp4: H264
Duration:00:00:29Viewed:1452
Total Frames:869Downloads:1
Frames per Second:29.97Published:11/09/2014
Aspect Ratio:16:9 nativeCopyright Holder:
Pixel aspect ratio:1Field Rendering:
Model release:NoProperty release:No

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Keywords
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