Autumn leaf colors are warning signals towards insects that use the trees as a host for the winter, for example aphids. [Hamilton, W. D.; Brown, S. P. (2001). "Autumn tree colours as a handicap signal"]
Mobile phone antennas are designed to project a signal in a donut shape, perpendicular to the long axis of the antenna. If you are holding your phone in a strange way, such as on its side or upside down, you will hinder the operation of the antenna. [wiki
Scrambled signal of Phoebe Cates & the Fast Times pool scene -- what we had to go through in the '80s in our neverending quest to see naked ladies (1984)
