We are all used to the op-amp, as a little black box from which we can derive an astonishingly useful range of circuit functions. But of course within it lurks a transistor circuit on a chip, and understanding the operation of that circuit can give us insights into the op-amp itself. It’s a subject [IMSAI…

A new hydroxychloroquine study — “the largest to date” — was published Thursday in the prestigious New England Journal of Medicine. It concluded that Covid-19 patients taking the drug “do not fare better than those not receiving the drug,” reports Time: Dr. Neil Schluger, chief of the division of pulmonary, allergy and critical care medicine…

We tested water filter pitchers from Brita, Pur, ZeroWater and others to find the best way to get clean, fresh water fast at home. …read more Source:: CNet

Tech conferences, movies, music fests, political rallies and sports events have all been affected by the COVID-19 pandemic. …read more Source:: CNet

Picking a new graphics AMD or Nvidia card can be overwhelming. We’ll help you get started with everything you need to know. …read more Source:: CNet

The Boston Herald writes that a “video vigilante faces numerous charges after being arrested outside Massachusetts General Hospital where police say he was recording the emergency ramp at the height of the coronavirus pandemic.” schwit1 shares their report: John L. McCullough, 41, was charged with trespassing, disturbing the peace and threats to do bodily harm…

An anonymous reader quotes a report from Ars Technica: Crawling along the world’s river bottoms, the larvae of the caddis fly suffer a perpetual housing crisis. To protect themselves from predators, they gather up sand grains and other sediment and paste them all together with silk, forming a cone that holds their worm-like bodies. As…

DevOps — which syncs, organizes and automates the pace of software releases — ‘is by default built for remote operations’ such as that required for the COVID-19 crisis. However, DevOps skills have been hard to find. …read more Source:: ZDNet

Hacker group “ShinyHunters” is selling the data of 10 companies on a dark web cybercrime marketplace. …read more Source:: ZDNet

Get ready to get creative for the special mom in your life. …read more Source:: CNet