Students attend a stewardess skill training for the upcoming 2017 entrance examination for art majors in colleges in Luoyang, central China's Henan Province, January 4, 2017. Along with how to stand, how to sit is also covered in these classes. (Photo by Li Bo/Xinhua/Barcroft Images)

A giant storm cloud can be seen in the sky above swimmers near Mollymook Beach, south of Sydney, March 5, 2014. (Photo by David Gray/Reuters)

A lightning strikes through smoke from fuel storage tanks that exploded near Cuba's supertanker port in Matanzas, Cuba on August 8, 2022. (Photo by Alexandre Meneghini/Reuters)

A young boy walks to his school bus on a foggy day in Dubai on March 14, 2024. (Photo by Chris Whiteoak/The National)

A participant stands next to a robot during the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg, Russia on June 15, 2022. (Photo by Maxim Shemetov/Reuters)

A Palestinian man reacts as he confronts Israeli forces during a protest against Israeli settlement activity near Hebron in the Israeli-occupied West Bank on June 11, 2022. (Photo by Mussa Qawasma/Reuters)

A man wearing a mask looks on as he sells matresses in Manila, Philippines, January 8, 2020. (Photo by Willy Kurniawan/Reuters)

Pilot Robert Johnson, with the Trojan Phlyers Flight Demonstration Team, flies a North American T-28 Trojan above Gary, Indiana, on Thursday, August 8, 2024 ahead of the Chicago Air and Water Show. (Photo by Tess Crowley/Chicago Tribune/Tribune News Service via Getty Images)