Which specific object was used for the first successful greyscale transmission?
Answer
Stooky Bill
Stooky Bill was a ventriloquist's dummy used as the subject for the first successful transmission of a picture with greyscale gradation on October 2, 1925. The dummy served as an ideal static subject for testing the 32-line vertical scanning system, allowing the inventor to verify that the equipment could correctly capture and reproduce tonal differences rather than just simple silhouettes, thus achieving the breakthrough of true television.
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