Great Scott! If my calculations are correct, when this baby hits 88 miles per hour, you’re gonna see some serious shit. — Doc Brown On this day, forty years ago, …read more (https://hackaday.com/2025/07/03/back-to-the-future-40-years-old-looks-like-the-past/)

I Gotta Print More Cowbell
https://hackaday.com/2025/07/03/i-gotta-print-more-cowbell/

Since the earliest days of affordable, home 3D printers, the technology behind them has been continuously improving. From lowering costs, improving print quality, increasing size and detail, and diversifying the …read more (https://hackaday.com/2025/07/03/i-gotta-print-more-cowbell/)

Last Chance: 2025 Hackaday Supercon Still Wants You!
https://hackaday.com/2025/07/03/last-chance-2025-hackaday-supercon-still-wants-you/

Good news, procrastinators! Today was going to be the last day to throw your hat in the ring for a slot to talk at Supercon in November, but we’re extending …read more (https://hackaday.com/2025/07/03/last-chance-2025-hackaday-supercon-still-wants-you/)

OpenMIDIStomper Makes Sure Your Gear Does What Your Foot Says
https://hackaday.com/2025/07/03/openmidistomper-makes-sure-your-gear-does-what-your-foot-says/

If you’re a solo musician, you probably have lots of gear you’d like to control, but you don’t have enough hands. You can enlist your feet, but your gear might …read more (https://hackaday.com/2025/07/03/openmidistomper-makes-sure-your-gear-does-what-your-foot-says/)

A Miniature Ostwald Reactor to Make Nitric Acid
https://hackaday.com/2025/07/03/a-miniature-ostwald-reactor-to-make-nitric-acid/

Modern fertilizer manufacturing uses the Haber-Bosch and Ostwald processes to fix aerial nitrogen as ammonia, then oxidize the ammonia to nitric acid. Having already created a Haber-Bosch reactor for ammonia …read more (https://hackaday.com/2025/07/03/a-miniature-ostwald-reactor-to-make-nitric-acid/)

Smart Mjolnir Makes Questionable Judgement Call On Your Worthiness
https://hackaday.com/2025/07/03/smart-mjolnir-makes-questionable-judgement-call-on-your-worthiness/

Mjolnir, also known as Thor’s hammer, is a discerning thing, at least if you believe the modern Marvel canon. [alemanjir] decided to build a semi-functional replica that makes judgement calls …read more (https://hackaday.com/2025/07/03/smart-mjolnir-makes-questionable-judgement-call-on-your-worthiness/)

AI Might Kill Us All (With Carbon Emissions)
https://hackaday.com/2025/07/03/ai-might-kill-us-all-with-carbon-emissions/

Sets of cooling towers in data center building.
" data-medium-file="https://hackaday.com/wp-content/uploads/2022/06/watercoolingdata_feat.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/06/watercoolingdata_feat.jpg?w=800">So-called artificial intelligence (AI) is all the rage right now between your grandma asking ChatGPT how to code in Python or influencers making videos without having to hire extras, but …read more (https://hackaday.com/2025/07/03/ai-might-kill-us-all-with-carbon-emissions/)

Pez Blaster Shoots Candy Dangerously Fast
https://hackaday.com/2025/07/03/pez-blaster-shoots-candy-dangerously-fast/