A fuel cell is an electrochemical energy conversion device; it turns chemical energy into electrical energy. Jonathan and Chris discuss fuel cells in detail from their origins to why they're not practical for general use yet in this episode.

Apple holds its iPhone 13 event today and we guess at what the company will reveal. We also learn how a federal judge made a call that subsequently led to Apple losing 85 billion dollars in value. Plus news about Facebook, Google, electric vehicles and woolly mammoths.

Mir was the first modular space station in orbit. It was simultaneously a scientific and engineering triumph and a chaotic mess. We look at the good, the bad and the on fire in this episode.

What goes on at the most famous secret base in the world? Ben Bowlin joins the show to talk about Area 51, aka Groom Lake.

Facebook and Ray-Ban introduce new smart glasses. Twitter creates Communities. And the Australian High Court makes a really bad decision about Facebook.

We've talked about space suits. Now it's time to talk about space stations! From the first Salyut space station to the incredible story of Skylab, we look at early space stations in this episode.

There's a lot of tech news about the role of tech in surveillance. It's not particularly happy news. We also talk about how Android users are watching more TikTok videos than YouTube videos. And I feel old.

Can technology end war? Several people thought so at one time or another. We look at five examples of idealists who thought tech would end warfare.

Just when you thought it was safe to watch a Blu-ray. We look at more tech that's necessary for a great home theater system. From AV Receivers to the cables you'll need to hook everything together, we get to the bottom of what makes home theater work.

After numerous protests, Reddit shut down a subreddit dedicated to the spread of COVID-19 misinformation. Will it follow up on similar problematic subreddits? And in other news, India cracks down on VPNs, the feds still depend on facial recognition tech and Amazon and SpaceX are in a space fight.

Hacker extraordinaire Shannon Morse joins the show to talk about how you can protect your data when browsing the Internet. Is public WiFi off limits? Are VPNs reliable? What about Tor?

While the US debates whether Apple and Google's in-app purchasing systems are anticompetitive, South Korea jumps ahead and bans the companies from preventing app developers from using other purchasing systems. Also, China cuts down on video game time for kids and we have a launch date for Windows 11.

We follow up with a bit more about what you need to know when selecting a screen for your home theater, plus all the options for sound. What's the difference between 5.1, 5.1.2 and 7.1? We explain!

TechStuff salutes an incredibly influential (and yet relatively unknown) tech genius: Claude Shannon. What did he do?

Content platform OnlyFans reverses a policy change after protests and criticism hit the company. Too many government agencies around the world rely on facial recognition software. The EU wants to track cryptocurrency transactions and more!

Maybe you want a new television, or maybe you want to set up a whole home theatre. This episode dives into the world of UHD experiences, from resolution to contrast ratio to HDR and beyond.

We learn how a tech startup is trying to help the people of Kabul (and how the startup's founder is protecting her employees). Apple pushes back a return to the office. And a hacker generously returns the 600 million dollars they stole in cryptocurrency.

How did space suits evolve over the course of the Space Shuttle program, and what has been going on since? And why are spacesuits being blamed for a delay in the Artemis Program?

How was full motion video used in early computer and console games? And why is it so hilariously bad?