Fiber-Infused Ink Allows 3D-Printed Heart Muscle To Beat
https://hackaday.com/2023/07/29/fiber-infused-ink-allows-3d-printed-heart-muscle-to-beat/

3D-printed heart muscle beating through fiber-infused ink. (Credit: Suji Choi et al., 2023)
" data-medium-file="https://hackaday.com/wp-content/uploads/2023/07/3d_print_heart_ventricle_beating.gif?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2023/07/3d_print_heart_ventricle_beating.gif?w=600">What makes a body’s organs into what they are is more than just a grouping of specialized cells. They also need to be oriented and attached to each other and …read more (https://hackaday.com/2023/07/29/fiber-infused-ink-allows-3d-printed-heart-muscle-to-beat/)

A Modern Replacement for the ZX Spectrum’s Odd Tape Storage System
https://hackaday.com/2023/07/29/a-modern-replacement-for-the-zx-spectrums-odd-tape-storage-system/

Unless you were lucky enough to be able to afford a floppy disk drive, you probably used cassette tapes to store programs and data if you used pretty much any …read more (https://hackaday.com/2023/07/29/a-modern-replacement-for-the-zx-spectrums-odd-tape-storage-system/)

Self-Hosted Chatbot Focuses on Privacy
https://hackaday.com/2023/07/30/self-hosted-chatbot-focuses-on-privacy/

Large language models (LLMs) have been all the rage lately, assisting from all kinds of tasks from programming to devising Excel formulas to shortcutting school work. They’re also relatively easy …read more (https://hackaday.com/2023/07/30/self-hosted-chatbot-focuses-on-privacy/)

Vacuum Chamber Gets Automation
https://hackaday.com/2023/07/30/vacuum-chamber-gets-automation/

[Nick] does a lot of custom work with vacuum tubes. So much so that he builds his own vacuum tubes of various shapes, sizes, and functions right on his own …read more (https://hackaday.com/2023/07/30/vacuum-chamber-gets-automation/)

Harvesting Mechanical Energy from Falling Rain
https://hackaday.com/2023/07/30/harvesting-mechanical-energy-from-falling-rain/

Collecting energy from various small mechanical processes has always been something that’s been technically possible, but never done on a large scale due to issues with cost and scalability. It’s …read more (https://hackaday.com/2023/07/30/harvesting-mechanical-energy-from-falling-rain/)

The British Government Is Coming For Your Privacy
https://hackaday.com/2023/07/30/the-british-government-is-coming-for-your-privacy/

The list of bad legislation relating to the topic of encryption and privacy is long and inglorious. Usually, these legislative stinkers only affect those unfortunate enough to live in the …read more (https://hackaday.com/2023/07/30/the-british-government-is-coming-for-your-privacy/)

Turning a Window Air Conditioning Unit Into Whole-House AC
https://hackaday.com/2023/07/30/turning-a-window-air-conditioning-unit-into-whole-house-ac/

Although air conditioning units are generally subdivided into a number of categories, including window, split and whole house/building units, they still work the same, with the compressor, condenser and expansion …read more (https://hackaday.com/2023/07/30/turning-a-window-air-conditioning-unit-into-whole-house-ac/)