Physicists at the University of Colorado Boulder have demonstrated a new kind of vacuum ultraviolet laser that is 100 to ...

80 years ago, ENIAC was presented to the world. Not the first, but the most important computer of its time. Today is World Computer Day. It is celebrated annually on February 15th, the anniversary of ...

Before transistors and microchips, engineers had limited options for building computing machines. Light bulbs, known as vacuum tubes, were the only components fast and reliable enough to perform ...

As a service to our readers, we're providing the LTspice files used in Dr. Dyer's article on simulation of the 12AX7 and the K2-W vacuum-tube op amp. 1. The model for the K2-W is established as a ...

Older table-top AC-DC radios used a classic line-up of tubes. Think 12SA7, 12SK7,12SQ7, 35Z5GT, and 50L6GT. As I grew into my teens, I got interested in how these radios worked and soon discovered ...

Add Yahoo as a preferred source to see more of our stories on Google. John Bardeen, Walter Brattain and William Shockley had submitted the patent application for a "three-electrode circuit element ...

A conveyor belt of atoms arranged in orderly rows could resolve a major stumbling block towards developing a large-scale quantum computer. Quantum-computing technology that makes qubits from atoms ...

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 ...

The thermionic tube has gone by many names throughout the timeline of its life. It’s also known as and referred to as a vacuum tube, vacuum diode, Fleming valve, and kenotron. Sir John Ambrose Fleming ...

ALAMEDA, Calif., April 2, 2025 /PRNewswire/ -- Penumbra, Inc (PEN). (NYSE: PEN), the world's leading thrombectomy company, announced seven significant computer assisted vacuum thrombectomy (CAVT™) ...