Slapped cheek disease (also known as fifth disease or parvovirus B19). Incubation period: 1-20 days. Infectious period: A few days before the rash appears (children are no longer contagious when the rash appears).Symptoms: 1  It begins with a fever and nasal discharge.2  A bright red rash, like the mark left by a slap, appears on the cheeks.ncubation period: 1-20 days. Infectious period: A few days before the rash appears (children are no longer contagious when the rash appears). Symptoms: 1  It begins with a fever and nasal discharge. 2  A bright red rash, like the mark left by a slap, appears on the cheeks.
#1. The First Photograph. The worldâs first photograph made in a camera was taken in 1826 by Joseph NicÃ©phore NiÃ©pce. The photograph was taken from the upstairâs windows of NiÃ©pceâs estate in the Burgundy region of France.
10 Comments. Did you know that the first digital camera invented in 1975 didnât actually produce the first digital photograph? The first digital photo actually came almost two decades earlier in 1957 when Russell Kirsch made a 176Ã176 pixel digital image by scanning a photograph of his three-month-old son. The low resolution was due to the fact that the computer they used wasnât capable of storing more information.