A girl practices martial arts during a training at a school in Syrian opposition-held village of al-Jeineh, Syria on April 11, 2021. (Photo by Khalil Ashawi/Reuters)

A girl dismantles a Kalashnikov rifle during a training lesson focused on the “Defence of Ukraine” at the military-patriotic center for schoolchildren in Lviv on May 17, 2023, amid the Russian invasion of Ukraine. (Photo by Yuriy Dyachyshyn/AFP Photo)

Santas trained by Ministry Of Fun's Santa School attend a taste test of Iceland's Luxury Mince Pies in London on November 24, 2024. (Photo by Jack Hall/PA Media Assignments)

Lucas Moraes (BRA) and Armand Monleon (ESP) of team Toyota Gazoo Racing trains during the shakedown prior Rally Dakar 2025 in Bisha, Saudi Arabia on January 02, 2025. (Photo by Marcelo Maragni/Red Bull)

Tech. Sgt. Milo Hinson, 3rd Combat Camera Squadron, uses a flashlight while shooting a Berretta 9mm during the night-fire portion of Advance Weapons, Tactics and Techniques training in San Antonio. During night-fire training, airmen learn how to tactically illuminate targets with flashlights and practice using night vision goggles. (Photo by Staff Sgt. Jonathan Snyder/U.S. Air Force). 2011

Look at the image for long enough and you can make the train change direction simply by thinking about it. Freaky.

Afghan air force 2nd Lt. Niloofar Rhmani walks the flight line at Shindand Air Base, Afghanistan, prior to her graduation from undergraduate pilot training, on May 13, 2013. Rhmani made history on May 14, when she became the first female to successfully complete undergraduate pilot training and earn the status of pilot in more than 30 years. She will continue her service as she joins the Kabul Air Wing as a Cessna 208 pilot. (Photo by Senior Airman Scott Saldukas/USAF)

A soldier poses with a Hythe Mk III Gun Camera during training activities at Ellington Field, Houston, Texas in April of 1918. The Mk III, built to match the size, handling, and weight of a Lewis Gun, was used to train aerial gunners, recording a photograph when the trigger was pulled, for later review, when an instructor could coach trainees on better aiming strategies. (Photo by Harry Kidd/WWI Army Signal Corps Photograph Collection via The Atlantic)