evidence: Facebook convinced time travel is real after ‘cellphone’ spotted in WWII pic [...] Sleuths on Facebook have spotted an odd-looking fellow in a black-and-white 1940s photograph where he appears to be using a device way too high-tech for the decade. [...] But this man isn’t in army fatigues. Instead, he stands out for wearing a lightly colored trench coat while holding his hand close to his ear as a modern-day cellphone user would.