Previous research indicated that 4-month-old infants perceive the unity of a center-occluded object when its visible ends share a common lateral translation in space. The present work investigated the ...

Murray Leinster’s short story Things Pass By, published in 1945, includes what may be the first description of 3D printers: But this constructor is both efficient and flexible. I feed magnetronic ...

South Sudan has started holding a trial for First Vice President Riek Machar, who has been sacked by his decades-long rival, President Salva Kiir, and charged with murder, treason and crimes against ...

Once the stuff of science fiction, 3D printers are now mainstream tools for creation and innovation. These devices, which transform digital blueprints into physical objects, have dramatically evolved ...

Man's place in nature -- Lower palaeolithic cultures and their survivals -- advanced Palaeolithic and Mesolithic cultures -- The invention of farming and the rise of Mesopotamian civilization -- ...

"This booklet is issued by the Post Office Department in response to many requests from individuals ... for the facts relating to the proposed change in the method of adjusting railway mail pay" ...