Bordeaux Mixture, a liquid used for controlling fungi on plants. It is a mixture of copper sulfate, hydrated lime, and water. Bordeaux mixture is used by florists, fruit growers, and gardeners to prevent mildews, rusts, scabs, and other fungus plant diseases. Its name comes from the early use of the mixture by members of the Academy of Science at Bordeaux, France. Bordeaux mixture was first used in the 1880's to kill mildew and other parasitic growths on grapevines. Use of the mixture spread from France to other countries.
The man who had some theories about relativity was also an eccentric who gleefully eschewed socks, dodged German military service and spurned social conventions.
He may have been born in Brooklyn, but Carl Sagan was gunning for the stars as soon as he arrived in this world. Get to know the scientist whose infectious delight in the universe still holds us spellbound.