1896 – Wilhelm Roentgen spoke to the Würzburg Physical Medical Society where he demonstrated X-rays by photographing the hand of session chair Dr. Albert von Kolliker, a famous anatomist.
http://www.emory.edu/X-RAYS/century_06.htm
1960 – With a crew of two, the bathyscaphe Trieste, descended 10,911 meters in the Pacific Ocean into Challenger Deep in the Mariana Trench near Guam, the deepest known point in the oceans.
http://geology.com/records/bathyscaphe-trieste.shtml
2003 – Earth lost communication with space probe Pioneer 10 which was 12 billion-kilometers from Earth.
http://www.nasa.gov/centers/glenn/about/history/pioneer.html
Read Tom’s science fiction and other fiction books at Merritt’s Books site.