He documented the poverty previously hidden in darkness using a magnesium powder to produce a flash. His work led to changes in the city and prompted then-Police Commissioner Theodore Roosevelt ...

Jacob Riis, a writer and photographer who exposed poverty in late 19th century New York City, used crude tools ... In the 1890s, "people were new to flash photography, and when [Riis] set it ...

Despite the journalist now mostly being remembered for his photography of turn-of-the-century New York City, he only considered ... people in the night with the flash and capturing starkly ...

Riis’s pioneering use of flash photography brought to light even the darkest parts of the city. Used in articles, books, and lectures, his striking compositions became powerful tools for social ...

Flash photography can be a mystery ... and shows star trails and city lights on Earth some 250 miles below.

More than a month’s worth of rain fell within hours Friday across parts of New York City and Long Island, inundating much of Brooklyn, flooding utility infrastructure, stranding vehicles and ...