Sanitation workers earn $30,320 annually in unsanitary environments. Alaskan crab fishermen work 24 hours searching for crabs. Mountain guides climb rocks and glaciers for $37,790. Loggers cut trees in harsh weather conditions for $46,330. E-waste recyclers face toxic waste disposal for $42,780
Anders Celsius introduced Celsius temperature scale in 1744. Daniel Fahrenheit created first accurate thermometer in 1736. Michael Faraday discovered electricity and magnetism in 1831. Pierre Curie discovered radioactivity in 1898. Marie Curie won Nobel Prize in 1903 for radioactivity
Sergei Korolev pioneered practical astronautics and space technology. Mikhail Lomonosov founded geology and revolutionized Russian literature. Dmitri Mendeleev created the first periodic table of elements. Alexander Popov invented the radio, which is still used in modern technology
Born in 1635 on Isle of Wight, Hooke was the youngest of four siblings. Received limited education, apprenticed to Peter Lely at age 13. Studied at Oxford, becoming a Master of Arts in 1662
Einstein's great-great-great-great-grandfather Jakob Weil was born in late 17th century. Albert's great-great-grandfather Löb Moses Sontheimer was grandfather of tenor Heinrich Sontheim
19th century began January 1801 and ended December 1900. Napoleonic Wars (1803-1815) pitted France against European powers. British and Russian empires expanded after Napoleon's defeat. Ottoman Empire underwent Tanzimat reforms but remained in decline