A stewardess holding a lightsabre poses for photos with visitors during a tour of the Star Wars themed All Nippon Airways ANA R2D2 Boeing 787 Dreamliner aircraft at Singapore's Changi Airport November 12, 2015. The aircraft was opened to the media on Thursday as it makes its first Asian stop outside Japan. (Photo by Edgar Su/Reuters)

Demonstrators made barricades during clashes with police following a protest condemning the arrest of rap artist Pablo Hasél in Barcelona, Spain, Thursday, February 18, 2021. The imprisonment of a rap artist for his music praising terrorist violence and insulting the Spanish monarchy has set off a powder keg of pent-up rage this week in Spain. (Photo by Emilio Morenatti/AP Photo)

The performers prepare for the show. Fontana, a travelling water circus produced by Cirque Du Liban at Festival City in Dubai. (Photo by Chris Whiteoak/The National)

Participants race during the Red Bull Box Cart Race challenges in Bo Kaap, one of the iconic neighbourhoods in Cape Town, South Africa on November 6, 2022. (Photo by Esa Alexander/Reuters)

Ukrainian serviceman fires with a heavy machine gun during a combat with Russia-backed separatists on the front line near Gorlivka, Donetsk Region on September 28, 2019. (Photo by Anatolii Stepanov/AFP Photo)

A reveler jumps from a fountain onto the crowd below, after the launch of the “Chupinazo” rocket, to celebrate the official opening of the 2014 San Fermin fiestas in Pamplona, Spain, Sunday, July 6, 2014. Revelers from around the world turned out here to kick off the festival with a messy party in the Pamplona town square, one day before the first of eight days of the running of the bulls glorified by Ernest Hemingway's 1926 novel “The Sun Also Rises”. (Photo by Andres Kudacki/AP Photo)

David Sharp, an engineer with Lockheed Martin, displays the “Samurai Flyer”, an aviation design inspired by the maple seed, during the Association for Unmanned Vehicle Systems International Conference August 16, 2011 in Washington, DC. Lockheed Martin unveiled the new design and demonstrated vertical takeoff and landing, stable hover, and on-board video streaming of the aircraft during their demonstration. (Photo by Win McNamee/Getty Images)