Tin foil hat radio with a metal bucket. The AM radio is completely inside a metal enclosure. This leads to a noticeable reduction in signal strength received by the AM radio. The efficiency of a metal enclosure in blocking electromagnetic radiation depends on the thickness of the foil, as dictated by the "skin depth" of the conductor for a particular wave frequency range of the radiation. For half-millimetre-thick aluminum foil, radiation above about 20 kHz (i.e., including both AM and FM bands) would be partially blocked, although aluminum foil is not sold in this thickness, so numerous layers of foil would be required
That's What Love Is Made Of at the concert, as she had retired from onstage and TV performances earlier that year for family reasons after touring caused her to have miscarriages, but she continued singing on their records as a non-touring member of The Miracles. The Miracles' "That's What Love Is Made Of" has inspired cover versions by Michael Jackson, Bobby Vee, Choker Campbell, and The Magicians, and has appeared on many Miracles "Greatest Hits" albums and CD Anthologies. The song's flip side was the popular regional Miracles hit tune, "Would I Love You", which was included on "Greatest Hits from the Beginning" but did not