Paris in the 18th century Paris from across Europe and from the United States to share ideas; Benjamin Franklin came in 1766 to meet with Voltaire and to talk about his experiments with electricity. The 18th century in Paris was a particularly inventive period. Some of the discoveries of Paris scientists, particularly in the field of chemistry, were quickly put to practical use; the experiments of Lavoisier were used to create the first modern chemical plants in Paris, and the production of hydrogen gas enabled the Montgolfier Brothers to launch the first manned flight in a hot-air balloon on 21 November 1783, from the Château
2016 Lockhart hot air balloon crash pilot's "pattern of poor decision-making" that led him to launch the balloon (on a day when other balloon operators cancelled their planned flights because of low cloud and fog), to continue the flight into fog and above clouds, and then to descend near clouds which made it difficult to see and avoid obstacles. The pilot's medical conditions (depression and ADHD), the prescription drugs he was taking, and the fact that balloon pilots do not need a medical certificate even for commercial flights were contributing factors leading to the accident. On August 1, Heart of Texas Hot Air Balloon Rides, whose