Download this article in PDF format. In February 2019, my friend and mentor Jerry Dale Merryman passed away. He was most well-known for inventing the first digital handheld calculator known as ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Your photos deserve to exist as more than mere bits and bytes. Here's how to pick the right photo printer—whether for humble snapshots or big, bold art prints—and our top lab-tested picks. I’m the ...

A high-tech way to share and cherish memories, the best digital photo frames are a slideshow of your beloved family photos and videos. Unlike fancy smart speakers and displays, they don’t play movies, ...

Ready to move beyond drugstore prints? "Photo printers," as a class, encompass printers that can be very, very small—or very, very large—so how to make sense of them? Let us help. Models for consumers ...

Abstract: The modeling and parameter extraction of the anti-parallel GaAs Schottky diode for terahertz monolithic-integrated circuit (TMIC) design is proposed in this article. The main advantage is ...