The owner of a cocktail bar in the UK has turned to physics in an attempt to force his customers to actually talk to other instead of just staring at social media all night.
Steve Tyler, who owns the Gin Tub in East Sussex, has built his very ownFaraday cage around the establishment to block mobile phone signals from entering the building.
It's a pretty ingenious (but controversial) move that involves installing metal mesh in the walls and ceiling of the bar to essentially filter out electromagnetic signals before they enter the building.
This effect was first discovered back in 1836 by physicist Michael Faraday, and it works in a similar way to noise-cancelling headphones, which block out noise by emitting the opposite wavelengths of sound.