mavii

Editor’s Note: This essay series is written by Mercy Street's medical, historical and technical advisor, Stanley B. Burns, MD of The Burns Archive. Before war in the twentieth century ...

Through his TV work and writing, Professor David Olusoga OBE has sought to make history inclusive, expansive and diverse. In his new role at The University of Manchester, he hopes to continue his mission, shedding a light on how history is viewed through ...

The current financial crisis is ferocious, but history shows the way to avoid another Great Depression Economic history is back in vogue. In the first half of 2008, surging prices of oil and other commodities revived unhappy memories of the stagflation of ...

If you are a Hackaday reader, you probably know what a Fresnel lens is. You find them in everything from overhead projectors to VR headsets. While it seems commonplace now, the Fresnel lens was an ...

Seven decades have passed since the end of World War Two. But the history of that era is still a constant source of tension between Japan and China, as researchers from Kyoto University recently ...

The technical definition of a telephoto lens is one with a focal length greater (or longer) than 50mm (on the 35mm/full frame forma), but the telephoto range is more generally accepted to begin at around 85mm which would be classified as a ‘short ...

Progressives lenses approach eyesight in this same way, affording the wearer the ability to adjust between different focal points and ultimately shift their perspective. Embracing adaptability ...

In correlation with the exhibition, Preservation Buffalo presents Lenses Speaker Series at The Buffalo History Museum, which will feature a number of respected speakers who are involved with ...

If you need a lens for a project, chances are pretty good that you pick up a catalog or look up an optics vendor online and just order something. Practical, no doubt, but pretty unsporting ...

From the site of the nation's largest slave revolt, the Banner sisters continue a legacy of environmental and cultural resistance.

It was apparently safe, with few deaths. The Medical and Surgical History of the War of the Rebellion (MSHWR), an extraordinary six-volume work, summarized medical and surgical care in the war.