The first photograph that demonstrates the Earth’s curvature was taken on Dec. 30, 1930, by U.S. Army Capt. Albert Stevens while he was flying at an altitude of 21,000 feet.

If I solve for the y-value of the circle (in quadrant 1), I get: The difference between y 1 and y 2 will give the vertical deviation between a straight laser and the curved Earth. But wait! This ...

Scientists say radar technology accounts for Earth’s curvature Radar technology utilizes radio waves to detect and track objects in the atmosphere. Radar technology has a broad range of uses ...

Indeed, one could see even further if it wasn’t for the curvature of the Earth. Enter one Samuel Birley Rowbotham, a 19th-century inventor and quack doctor who went by the name “Parallax.” ...

Next time a flat-earth conspiracy theorist confronts you, you'll be prepared. Here are 10 ways to prove that the Earth is round.

Physics students from the University of Leicester have captured breathtaking images of the Earth's stratosphere using a high altitude weather balloon. The unmanned balloon and sensor payload ...

And Earth's curvature is clearly apparent from high altitudes, as Capt. Albert Stevens of the U.S. Army Air Corps showed in the 1930s. In December 1930, for example, ...

For the first time, we can measure the curvature at Earth's surface, as well as how that curvature changes with altitude. Christopher Vitale of Networkologies and the Pratt Institute.

ON the occasion of his ascent to the stratosphere above Dakota in November 1935, Capt. A. W. Stevens took a number of photographs of great interest. The National Geographic Society, which ...

Dutch photographer and filmmaker Gerco de Ruijter has released a short film called Grid Corrections, which documents how straight street grids are bent to fit the curvature of the Earth.

The curvature of the Earth is visible in this 2014 photo, which ESA astronaut Samantha Cristoforetti snapped from the International Space Station. Source: NASA/Samantha Cristoforetti Key Takeaways: ...

A March 9 Facebook post (direct link, archive link) features an image of the Earth taken from outer space. “The first ‘photo’ of the curvature was published on April Fools Day,” reads the ...