- LSD, the CIA, and Your Brain (textfiles.com)
What follows is a chapter from Martin Lee and Bruce Shlain’s book, Acid Dreams_. The book is a terrific read. The following selection is chapter 1, which examines the development of the CIA’s interest in the mysterious new drug, LSD. It is alternately funny, disgusting, and horrific.
- Light (Wikipedia)
Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz. The visible band sits adjacent to the infrared (with longer wavelengths and lower frequencies) and the ultraviolet (with shorter wavelengths and higher frequencies), called collectively optical radiation.