aDepartment of Urology, Peking University First Hospital, Beijing, China bInstitute of Urology, Peking University, Beijing, China cNational Urological Cancer Center, Beijing, China dDepartment of ...

World War II was marked by intense, lengthy, bombing campaigns such as the Blitz, the German offensive against the city of London. Famously, one British response was the blackout, a defensive campaign ...

Git isn’t hard to learn. Moreover, with a Git GUI such as Atlassian’s Sourcetree, and a SaaS code repository such as Bitbucket, mastery of the industry’s most powerful version control tools is within ...

Windows 11 is available for download worldwide. Microsoft has released it as a free upgrade, which means you do not need to pay to upgrade your computer to Windows 11. It is available for free ...

A sextant is an instrument used for measuring the angle between two visible objects. Both horizontal and vertical angles can be measured using a sextant. It contains two mirrors which are arranged in ...

A sextant is the antique version of a GPS. And in his basement workshop, Ridge White is one of the few people in the world still servicing and repairing the instruments. “Sarah,” a replica of an ...

When Physicist K. G. Jansky of Bell laboratories discovered in 1932 that he could pick up radio waves from objects in space, he founded the exciting science of radio astronomy. As the sailors of ...

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The demolition of a landmark Cork city pub to make way for what will be one of the country’s tallest residential buildings has prompted calls for a new debate about protecting the city’s heritage.

The Airbus A330 that I fly across the Atlantic to any of several European cities is equipped with onboard navigation computers that tell us in the cockpit exactly where we are at any time. But when ...

In May 1928, Navy Lieutenant Commander Philip V.H. Weems took Charles Lindbergh on a series of flights to teach him a new way to navigate. Clockwise from left: Lindbergh’s sun lines of position, ...

150-year-old sextant was passed down through generations of the Henning family A historical sextant, telescope and almanac were recently donated to the Museum The Cayman Islands National Museum ...