Competitors ride a home-made vehicle without an engine on a downhill track in the Red Bull Soapbox Race in Santiago, Chile, November 27, 2016. (Photo by Jonathan Faus/Reuters)

Palestinian boy Mohammad al-Bana, 10, sells mints at a market in Gaza City March 29, 2016. Bana, whose father is unemployed, earns around 10 Shekels ($2.5) per day. The boy starts working after finishing school. He hopes to continue education and become an engineer in the future. (Photo by Mohammed Salem/Reuters)

NHRA funny car driver Alexis DeJoria suffers an engine fire after winning her first round matchup during the Fall Nationals at Texas Motorplex on October18, 2020 in Ennis, Texas. DeJoria would be uninjured in the fiery incident. (Photo by Mark J. Rebilas/USA TODAY Sports)

NHRA top fuel driver Spencer Massey explodes the engine of his dragster on fire during the Thunder Valley Nationals at Bristol Dragway on October 17, 2021. Massey was unhurt in the incident. (Photo by Mark J. Rebilas/USA TODAY Sports)

Expedition 44 flight engineer and NASA astronaut Scott Kelly seen inside the Cupola, a special module which provides a 360-degree viewing of the Earth and the International Space Station. Kelly is one of two crew members spending an entire year in space. (Photo by Scott Kelly/NASA)

These eye-catching photographs capture the special relationship between a group of farmers and elephants – with a gorgeous sunset in the background. Vithun Khamsong, a civil engineer, shot the images earlier this year while visiting Surin, Thailand. (Photo by Vithun Khamsong/Caters News Agency)

Paul Dixon is an engineer by day and an astrophotographer by night. He shot this broken boat on Dungeness beach, Kent in the last decade of August 2024, 17 times, stacking the images upon each other before combining them with a similar composite of the Milky Way. (Photo by Paul Dixon/Media Drum Images)

Number 10. BELL H-13 SIOUX was a two-bladed, single engine, light helicopter built by Bell Helicopter. Westland Aircraft manufactured the Sioux under license for the British military as the Sioux AH.1 and HT. In 1947, the United States Air Force ordered the improved Bell Model 47A. Most were designated YR-13 and three winterized versions were designated YR-13A. The United States Army first ordered Bell 47s in 1948 under the designation H-13. These would later receive the name Sioux. The Bell-built H-13 B is seen airborne in this April 29, 1951 photo. The helicopter is equipped with a 173 horsepower engine, cruises at 85 miles per hour, climbs 900 feet in a minute and has a service ceiling of 11,500 feet. (Photo by AP Photo)