An armed police officer attends an explosive ordnance disposal training on April 12, 2022 in Nanning, Guangxi Zhuang Autonomous Region of China. (Photo by Yu Haiyang/VCG via Getty Images)

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)

A smokejumper leaps from an airplane during a training flight above Winthrop, Washington, U.S., June 30, 2016. On a 100-degree day in early June, eight experienced firefighters did sit-ups in a semicircle training to parachute into a wildfire. Better known as “rookie candidates”, they were determined to make it through the five-week program at North Cascades Smokejumper Base in Winthrop, Washington, where the first experimental jumps occurred in 1939. (Photo by David Ryder/Reuters)

A student attending a winter military camp reacts during a training session in Ansan, south of Seoul January 3, 2013. Hundreds of students between 11 and 17 years old attend winter boot camp training courses every year. The winter courses range from 4 to 14 days at the Blue Dragon Camp run by retired marines, which also offers summer boot camp for students. (Photo by Kim Hong-Ji/Reuters)

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)