Blog

Mirror, Mirror, Electron Mirror…

If you look into an electron mirror, you don’t expect to see your reflection. As [Anthony Francis-Jones] points out, what you do see is hard to explain. The key to an electron mirror is that the electric and magnetic fields are 90 degrees apart, and the electrons are 90 degrees from both. You need a

Read More
Google Is Sunsetting the Google Pay App

Google is shutting down the Google Pay app, as the standalone app has largely been replaced by Google Wallet. According to TechCrunch, Google Pay “will only be available in Singapore and India” after its shuts down in the United States. From the report: Users can continue to access the app’s most popular features right from

Read More
Is Google Chat safe and secure?

Google Chat may not be the sexiest messaging platform out there, but being built into Gmail and other elements of Google Workspace, it can be convenient for both office workers and others who want an alternative to services like Slack, WhatsApp, or Telegram. But how safe is it? Should you invest even more trust in

Read More
Op-Amp Drag Race Turns Out Poorly for 741

When it was first introduced in 1968, Fairchild’s 741 op-amp made quite a splash. And with good reason; it packed a bunch of components into a compact package, and the applications for it were nearly limitless. The chip became hugely popular, to the point where “741” is almost synonymous with “op-amp” in the minds of

Read More