Putting your lights out creates a false sense of security and actually BENEFITS the German bomber pilots because it helps maintain their night vision. Instead, the science says you should move all your lamps to the roof and dazzle them as they go overhead

If you're not a qualified ARP warden, STOP BUYING BLACKOUT CURTAINS. We go through *years* of training and our window coverings must pass a 'fit test' to prove they're effective. On your house with odd-sized windows and no experience? Your 'blackout curtain' is an expensive prop

At the Admiralty on Horseguards in a bunker full of air defence specialists and not ONE person is covering a light. Many are leaning out of the firing ports and shining torches into the sky. If 800 air force officers aren’t covered up, you don’t need to either! #ARPTwitter

The Luftwaffe Skeptics group now believe that keeping lights on overnight will build fatigue among German military personnel and project Hitler's unconditional surrender by November