Tiny ozone generator could find use in water-purifying appliances

Although ozone is often used to disinfect water in settings such as treatment plants, the required equipment is typically too large for use in small appliances like water coolers. A new miniaturized ozone generator, however, may be about to change that… Continue reading Tiny ozone generator could find use in water-purifying appliances

New electrolyzer could make hydrogen and oxygen out of salty Mars water

Weight is a premium on space launches, so the less we have to take with us, the better. Now, engineers at Washington University in St. Louis have developed a new electrolysis device that may be able to convert very salty Martian water into breathable o… Continue reading New electrolyzer could make hydrogen and oxygen out of salty Mars water

Autonomous robot scientist can choose its own experiments

Robots are learning to do the jobs of human factory workers, bus drivers, burger flippers, butlers, and healthcare workers, among many others – and now, they may be coming for scientists as well. Engineers at the University of Liverpool have developed … Continue reading Autonomous robot scientist can choose its own experiments

“Artificial leaf” device turns water and sunlight into hydrogen fuel

Researchers from Rice University have built a simple new solar-powered device that can create hydrogen for fuel by splitting water. The system is very similar to other “artificial leaf” designs, but the team says it’s self-sufficient and relatively che… Continue reading “Artificial leaf” device turns water and sunlight into hydrogen fuel

DIY Electrolysis Tank: Removing Rust While You Sleep

Anyone who’s done a bit of metalworking will know how quickly your stockpile will pick up a coating of rust with even just a bit of humidity. While welding requires only a bit of wire brushing at the joint areas, cleaning a large frame for paint is a completely different …read more

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Extreme Refurbishing: Amiga Edition

The last Amiga personal computer rolled off the assembly line in 1996, well over 20 years ago. Of course, they had their real heyday in the late 80s, so obviously if you have any around now they’ll be in need of a little bit of attention. [Drygol] recently received what …read more

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Hydrogen Powered Nerf Blaster Is Dangerously Awesome

Nerf blasters have been around for decades now, exciting children and concerning parents alike. Most are powered by springs or compressed air, and are the ideal holiday toy for putting delicate family heirlooms at risk. Not content to settle for the usual foam-flinging sidearm, [Peter Sripol] decided to take things up a notch.

The build starts with a MEGA CYCLONESHOCK blaster, which uses the larger red NERF darts as ammunition. Water tanks are rigged to the outside, fitted with stainless steel electrodes. The original spring & plunger firing  assembly is then removed, to make room for a firing chamber made …read more

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Electrolysis Tank Removes Rust

If you have something rusty, you can get a wire brush and a lot of elbow grease. Or you can let electricity do the work for you in an electrolysis tank. [Miller’s Planet] shows you how to build such a tank, but even better, he explains why it works in a very detailed way.

The tank uses a sodium carbonate electrolyte — just water and washing powder. In the reaction, free electrons from the electrolyte displace the oxygen from the rusted metal piece. A glass container, a steel rod, and a power supply make up the rest.

For an example, …read more

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[Cody] Builds a Chlorine Machine

In his continuing bid to have his YouTube channel demonetized, [Cody] has decided to share how he makes chlorine gas in his lab. Because nothing could go wrong with something that uses five pounds of liquid mercury and electricity to make chlorine, hydrogen, and lye.

We’ll be the first to admit that we don’t fully understand how the Chlorine Machine works. The electrochemistry end of it is pretty straightforward – it uses electrolysis to liberate the chlorine from a brine solution. One side of the electrochemical cell generates chlorine, and one side gives off hydrogen as a byproduct. We even …read more

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Hair Today, Gone Tomorrow, Via Electrolysis

We think of electrolysis as a way to split things like water into oxygen and hydrogen using electricity, but it has a second meaning which is to remove hair using electricity. An electrologist inserts very thin needles into each hair follicle and uses a burst of electricity to permanently remove the hair. [Abbxrdy] didn’t want to buy a cheap unit because they don’t work well and didn’t want to spend on a professional setup, so designing and building ensued.

You’ll have to read through the comments to find some build details and the schematic. The device uses commercial electrolysis needles …read more

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