A very rare lead-lined naval signal book from the First World War has been bought by a museum after being found in an Oxfam bookshop. The General Signals Book, which is filled with confidential ...

The existence of the book is rare because signal books were usually ordered to be destroyed once they were no longer in use. A very rare lead-lined naval signal book from the First World War has ...

(Image credit: Courtesy of Steve Doty, NOAA NCDC (ret.)) Weather signal flags grew out of the use of the maritime signal flag, which was red, with a black square inside. Starting in 1871 ...

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...