Winner Petra Vlhova from Slovakia celebrates on the podium of the FIS women's World Cup slalom in Zagreb, the “Snow Queen Trophy 2022”, on January 4, 2022. (Photo by Antonio Bronic/Reuters)

An Armatix employee holds a “smart gun” by the company at the Armatix headquarters in Munich May 14, 2014. The gun is implanted with an electronic chip that allows it to be fired only if the shooter is wearing a watch that communicates with it through a radio signal. If the gun is moved more than 10 inches (25 cm) from the watch, it will not fire. A Maryland gun shop owner has dropped his plan to be the first in the United States to sell the so-called “smart gun” after a backlash that included death threats. (Photo by Michael Dalder/Reuters)

Gas-masked men of the British Machine Gun Corps with a Vickers machine gun during the first battle of the Somme, 1916. (Photo by General Photographic Agency/Getty Images)

The first solar-powered station designed to look like a tree provides users with a free Wi-Fi spot charging station, seating and cool drinking water.

US freestyler, gold medalist Mcrae Williams competes during the men' s SlopeStyle (SS) finals at the FIS Snowboard and Freestyle Ski World Championships 2017 in Sierra Nevada on March 19, 2017. (Photo by Albert Gea/Reuters)

Yanick Wasser of Switzerland jumps in the Mens Large Hill Individual competition during Day 2 of the FIS Ski Jumping World Cup at Lake Placid Olympic Jumping Complex on February 08, 2025 in Lake Placid, New York. (Photo by Al Bello/Getty Images)

France's Juliette Ducordeau (Front R) and fellow athletes react after crossing the finish line of the Women's Mass Start 10 km Free event at the FIS Tour de Ski stage on January 8, 2023 in Val di Fiemme. (Photo by Marco Bertorello/AFP Photo)

A German special anti-tank gun is ready to fire during the army maneuvers in Silesia, Poland, on September 22, 1928. (Photo by AP Photo)