Category Archives: chemistry hacks

A Safer, Self-Healing Polymer Battery

Lithium-ion batteries are notorious for spontaneously combusting, with seemingly so many ways that it can be triggered. While they are a compact and relatively affordable rechargeable battery for hobbyists, damage to the batteries can be dangerous and lead to fires.

Several engineers from the University of Illinois have developed a …read more

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Posted in batteries, chemistry hacks, Lithium-ion battery, polymers, research, science | Leave a comment

Engineering Your Way to Better Sourdough (and Other Fermented Goods)

Trent Fehl is an engineer who has worked for such illustrious outfits as SpaceX and Waymo. When he got into baking, he brought those engineering skills home to solve a classic problem in the kitchen: keeping a sourdough starter within the ideal, somewhat oppressive range of acceptable temperatures needed for …read more

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Posted in 2019 Hackaday Superconference, chemistry hacks, cons, cooking hacks, fermentation, kombucha, peltier, peltier unit, sourdough, sourdough starter, wild yeast, yeast | Leave a comment

A Car That Runs On Homemade Chemical Reactions

The race for chemical engineering is quite literally on. Every year, the American Institute of Chemical Engineers (AlChE) brings together hundreds of university students to face-off to design the fastest car using techniques they’ve learned from chemical engineering courses.

The Chem-E-Car competition races cars which are only powered by chemical …read more

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Posted in chemical engineering, chemical reactions, chemistry hacks, university | Leave a comment

The Strain of Flu Shot Logistics

Did you get a flu shot this year? How about last year? In a world of next-day delivery and instant downloads, making the yearly pilgrimage to the doctor or the minute clinic feels like an outdated concept. Even if you get your shots free at the office, it’s still a …read more

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Posted in cdc, chemistry hacks, egg, fda, flu, flu shots, Hackaday Columns, influenza, Interest, Jonas Salk, logistics, Medical hacks, Original Art, virus | Leave a comment

Lessons in Li-Ion Safety

If you came here from an internet search because your battery just blew up and you don’t know how to put out the fire, then use a regular fire extinguisher if it’s plugged in to an outlet, or a fire extinguisher or water if it is not plugged in. Get …read more

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Posted in battery, battery charging, battery monitor, battery pack, Chemistry, chemistry hacks, Engineering, Featured, fire safety, Interest, lithium, lithium battery, lithium cell, Lithium-ion battery, safety, workshop safety | Leave a comment

The Blessings And Destruction Wrought By Lead Over Millennia

Everyone one of us is likely aware of what lead — as in the metal — is. Having a somewhat dull, metallic gray appearance, it occupies atomic number 82 in the periodic table and is among the most dense materials known to humankind. Lead’s low melting point and malleability even …read more

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Posted in chemistry hacks, Featured, galena, lead, lead poisoning, lead safety, Medical hacks, Original Art, safety, science | Leave a comment

Better Battery Management Through Chemistry

The lead-acid rechargeable battery is a not-quite-modern marvel. Super reliable and easy to use, charging it is just a matter of applying a fixed voltage to it and waiting a while; eventually the battery is charged and stays topped off, and that’s it. Their ease is countered by their size, …read more

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Posted in battery, battery analysis, battery life, battery technology, chemistry hacks, Engineering, Featured, lipo, lipo battery, lithium, lithium battery, lithium cell, lithium ion, lithium polymer, Lithium-ion battery, Original Art, science | Leave a comment

This Biofuel Cell Harvests Energy From Your Sweat

Researchers from l’Université Grenoble Alpes and the University of San Diego recently developed and patented a flexible device that’s able to produce electrical energy from human sweat. The lactate/O2 biofuel cell has been demonstrated to light an LED, leading to further development in the area of harvesting energy through wearables. …read more

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Posted in biofuel, carbon nanotube, chemistry hacks, energy, research, wearable hacks, Wearables | Leave a comment

The Thermochromic Display You Didn’t Know You Needed

We love unique ways of displaying data here at Hackaday, and this ingenious thermochromic display created by [Moritz v. Sivers] more than fits the bill. Using sheets of color changing liquid crystals and careful temperature control of the plates they’re mounted on, he’s built a giant seven-segment display that can …read more

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Posted in chemistry hacks, environmental sensor, liquid crystal, peltier unit, science, thermochromic | Leave a comment

Kitty Litter and Broken Light Bulbs Power This Homebrew Gas Chromatogram

We’re always on the lookout for unexpected budget builds here at Hackaday, and stumbling across a low-cost, DIY version of an instrument that sells for tens of thousands of dollars is always a treat. And so when we saw a tip for a homebrew gas chromatogram in the tips line …read more

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Posted in bentonite, chemistry hacks, gas chromatography, GC, helium, kitty litter, misc hacks, sample, sparge, volatile | Leave a comment