One problem with engineering education today is a lack of experimental teaching. Oh sure you may have a project or two, but it’s not the focus of the program because it’s hard to standa…

On August 25th, 1966, an Apollo Command Module was launched aboard a Saturn IB rocket in mission AS-202. This mission was intended to immediately precede the ill-fated Apollo 1 mission, the AS-202 …

Coilguns used to be the weapons of science fiction. Nowadays, whenever we see someone build one in their workspace it always serves as an inspiring reminder that the future is now. YouTuber [Cody'sLab...

If you enjoy building radio projects you may have noticed something slightly worrying over the last few years in your component supply. Variable capacitors are no longer as plentiful as they used t…

Some of us need a bit of help to get up in the mornings. This can come in the form of a sunrise lamp, which simulates the light of the sunrise to fool our poor sleep-deprived brains into waking up …

[Jack Qiao] wanted an autonomous robot that could be handy around an ever-changing shop. He didn’t want a robot he’d have to baby sit. If he said, ‘bring me the 100 ohm resistors&…

Lithium-Ion batteries are finicky little beasts. They can’t be overcharged, overdischarged, overheated, or even looked at funny without bursting into flames. Inside any laptop battery pack, a…

We put a lot of trust into some amazingly cheap components, sometimes that trust is very undeserved. Long gone are the days when every electronic component was a beautifully constructed precision lab ...

A while back, [cnlohr] needed a USB keyboard and mouse. His box ‘o junk didn’t hold this particular treasure, and instead of hopping on Amazon like a normal geek or venturing into the o…

Drones come in all shapes and size, and [Kedar Nimbalkar] was wondering if the guts of a tiny Cheerson CX-10 nano-drone could take off with a larger body, leading to an interesting brain transplant…

Time and tide wait for no man. Chaucer may be right, but a man (or woman) wearing a watch can get ahead of time before it sneaks up on them. People aren't ever satisfied with just the time though. T...

When your climbing gym throws a "glow in the dark" party, how can you stand out? For [Martijn], the answer was obvious. He made a jacket adorned with 32 WS2812 addressable LEDs whose color is addres...

[Scott Baker] wanted to take on a new retrocomputing project. He decided to build an RC2104. Lucky for us, he documented everything along the way. In addition to the main board, [Scott] built bus moni...

We love our Game Boy and RetroPie mods here at Hackaday because the Raspberry Pi Zero has made it easier than ever to carry a pocket full of classic games. [Ed Mandy] continues this great tradition…

[Jovan] is very excited about the possibilities presented by Visible Light Communication, or VLC. It's exciting and new. His opening paragraphs is filled with so many networking acronyms that VLC cou...

[Nurdrage] puts out a lot of neat videos, mostly about home chemistry. For the home chemist it is occasionally desirable to pull a vacuum. For example, a potentially dangerous chemical can be boile…

In a lot of ways, portable toilets are superior to standard indoor-plumbing-style toilets. This is mostly due to the fact that they have a status indicator on the door. It's a shame that no indoor bat...

We have a love/hate relationship with LiIon batteries. They pack all this power in such a small and light package. But for running 3.3 V devices, they’re cumbersome. They need to be stepped d…

Sometimes it’s worth doing something in an inefficient way. For example, it might be worth it in order to learn something new, or just to use a particular part. [Deater] did just that with th…

[DastardlyLabs] saw a video about converting a PS/2 keyboard to Bluetooth and realized he didn’t have any PS/2 keyboards anymore. So he pulled the same trick with a USB keyboard. Along the wa…

There are many obstacles in the way to turning carbon nanotubes into something useful. Materials engineers at the University of Wisconsin-Madison have now brought carbon nanotubes (CNTs) one step clos...