If you’re reading this article, chances are you regularly use Notepad, Visual Studio, or Sublime to write code and edit text. Here’s why you should use Emacs instead.

Emacs is a command line text editor that you can use to accomplish practically any development-related task. If you’re not already familiar…


Are you running out of space on your computer, but don’t want to hurt machine learning performance with a slow drive? Thunderbolt 3 SSDs are the answer.

I have recently started training models in TensorFlow on some rather large datasets. My already-taxed internal SSD soon ran out of what little space it had left, prompting me to find another solution.

I had an old external SSD lying around, so I tried moving my 20 GB dataset onto…


Want to train machine learning models on your Mac’s integrated AMD GPU or an external graphics card? Look no further than PlaidML.

Anyone who has tried to train a neural network with TensorFlow on macOS knows that the process kind of sucks. TensorFlow can only leverage the CPU on Macs, as GPU-accelerated training requires an Nvidia chipset (there is a fork of TensorFlow that can use GPUs on macOS, but it’s still…


Flying around you at this very moment are thousands of man-made radio signals. With a $20 USB dongle, you can visualize and decode a large number of them.

I’m sure you’re aware of humanity’s reliance on radio waves for practically every communications task. After all, how could it get much…


Misguided caution about the health effects of cellphones and their networks is hindering progress

I am a student at Harvard College studying electrical engineering and am in no way affiliated with telecommunications companies or lobbyist groups seeking to expedite the rollout of 5G or activist groups seeking to halt its rollout.

We are on the verge of a communications revolution. The global rollout of…


Meet Mars 2020 — NASA’s newest robotic explorer headed to the Red Planet.

The Mars 2020 rover is the latest in a long series of vehicles that wheel around the red planet. Mars 2020 inherits much of the same design as NASA’s previous Mars Rover, Curiosity (officially known as Mars…


But they’re already polluting the sky

You may have seen one of the countless articles peppering news feeds about satellite constellation-based internet connectivity such as Starlink by SpaceX or OneWeb. A few companies have deployed their first satellites, and many more, such as Amazon, have filed applications with the FCC and the International Telecommunications Union (ITU)…


We live in an age of unprecedented access to information. While this generally is helpful, it also poses a threat by way of the distribution of misinformation. It’s easier than ever for an individual or even large companies to make up some bogus scientific claims for monetary gain. …


The Artemis Program is not some startup’s pipe dream or the landing of a minor moon probe; this is the real deal. Humanity is going back to the Moon, and to stay this time.

NASA’s 21st-century Moon initiative is not new. Work on Space Launch System (SLS), the rocket that…


The hobbyist wireless communications space is becoming increasingly crowded with different radios and protocols — this guide will help you choose the right one for your next project!

TL;DR

If you’re just looking for a recommendation without any information, read this section. I go into much more detail below.

  • I need…

Alex Wulff

I'm a Harvard student, maker, and radio enthusiast. Check out my book on radio communications at amzn.to/341cywA and my website at www.AlexWulff.com

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store