A sad-faced Doug walked into a flower shop early one morning.
The clerk was ready to take his order for a funeral piece, based on the look on Doug's face, but soon realized his assumption was wrong as Doug asked for a basket of flowers sent to his wife for their anniversary.
"And what day will that be?" the clerk asked.
Glumly he replied, "Yesterday".
First photo of sunIn 1845, the first surviving daguerrotype photograph showing details of the sun was taken by French physicists Armand Fizeau and Léon Foucault. The 5-inch (12 cm) image had an exposure of 1/60 second, and showed the umbra/penumbra structure of several sunspots, as well as limb darkening. The photographic process was new: Daguerre perfected the daguerrotype only a few years earlier, in 1838. Fizeau and Foucault had been collaborating with their own experiments on the process since 1839. Fizeau had much improved the durability of a daguerrotype image with a treatment, published in Aug 1840, using a solution of chloride of gold mixed with hypo-sulphite of soda, then heated over a spirit-lamp.« |
