Which musician band has an a...
Which musician band has an album with a cover as in the picture?Correct answers: 45
The first user who solved this task is Erkain Mahajanian.
#brainteasers #music #riddles
Crystal DetectorIn 1906, a U.S. patent was issued for the crystal detector, which was one of the first devices widely used for receiving radio broadcasts (until superseded by the triode vacuum tube). It was invented by Greenleaf Whittier Pickard, a U.S. electrical engineer. His patent described it as "a means for receiving intelligence communicated by electric waves." |