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Notes tagged with category:observe

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See the Fraunhofer absorption lines in sunlight

by warren over 2 years ago | 0 | 1,322 views | 1


In the heat of the pile

by cfastie about 3 years ago | 3 | 118 views | 2


Flame testing metal salts

by kgradow1 over 3 years ago | 2 | 1,712 views | 8




CrocusCam

by cfastie about 6 years ago | 3 | 116 views | 1


Bean Cam

by cfastie about 6 years ago | 2 | 121 views | 3