Microsoft has introduced some improvements to drawing capabilities in OneNote. Some of the major changes you will see is a new keyboard shortcut for drawing straight lines, and Pen & Ink improvements.

While writing the 3D imagery post we came across this oddity: If you draw a path in Google Earth, the line segments follow geodesics, which are parts of great circles. If you draw a polygon, the sides ...

IN Fig. 6, Q C is the extra link pivoted to the fixed point Q, the other pivot on it C, describing the circle OCR. The straight lines? ? and F M' are supposed to be perpendicular to M R Q M'. You have ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...