German field telegraph operators at work in Warsaw. (Photo by Hulton Archive/Getty Images). 1st October 1914

A recruitment drive during the First World War at Trafalgar Square, London. (Photo by Central Press/Getty Images)

The Lumix GX1 single lens reflex (SLR) camera with 14-42 mm powerzoom lens is displayed at the Panasonic booth at the 2012 International Consumer Electronics Show at the Las Vegas Convention Center January 10, 2012 in Las Vegas, Nevada. The new camera comes with an external viewfinder and flash and an ISO up to 12,800. The camera as shown sells for USD 949; the camera body alone is USD 799. (Photo by Ethan Miller/Getty Images)

Looking towards the Times Building on Times Square, the Paramount Building is on the right, and Seventh Avenue on the left crossing Broadway. (Photo by General Photographic Agency/Getty Images). Circa 1930

“Life-size humanoid robot BERTI (Bristol EluMotion Robotic Torso number 1 or RT-1) is a self contained, fully automated Robotic Torso, designed and built by Elumotion to provide a robotic platform based on human anatomy. RT-1 is a highly articulated manipulating platform and includes novel dexterous hands that allow emulation of human gesturing”. – Elumotion.com

Photo: BERTI the robot interacts with a Sony AIBO robot dog at The Science Museum's Antenna Gallery on February 17, 2009 in London. (Photo by Peter Macdiarmid/Getty Images)

“I See Sea” by Photographer Dmytriy Dokunov. The frozen Black Sea. Scene of action: Odessa, Ukraine; January, 2012. (Photo by Dmytriy Dokunov)

MAKS (Russian: МАКС, Russian: Международный авиационно-космический салон, International Aviation and Space Salon) is The International Air Show took place near Moscow, Russia on Zhukovskiy LII air field on 16-21 August 2011.

Indigenous women from the Kamayura tribe take part in a demonstration of Huka Huka fight at the first World Games for Indigenous Peoples in Palmas, Brazil, October 29, 2015. (Photo by Ueslei Marcelino/Reuters)