• A $1,000 open-source microlithography system was outlined that repurposes an inverted microscope and 405 nm laser diode to achieve ~1 µm features, with a Blu-ray optical-head variant reaching 500 nm; participants debated stepper-motor mechanics, LCD maskless lithography trade-offs, and cited a 2010 Itoga paper on blurring pixel edges to eliminate inter-pixel dead-zone noise.

• Live coverage of the 2015 Rejuvenation Biotechnology (SENS) conference was shared via Medium, including links to Helen Blau’s aged-muscle stem-cell research and Liam Grover’s regenerative biomaterials, alongside emerging longevity-funding platforms Lifespan.io and a large anonymous donation to FightAging.org.

• A speculative concept proposed growing “battle-bots” from soldiers’ induced-pluripotent stem cells, pairing lab-grown brain organoids with robotic bodies to achieve finer dexterity and reduced collateral damage compared to conventional weapons.

• An acoustic cryptanalysis experiment on an Epson piezo inkjet printer was presented: recordings of audible emissions during black-stripe printing (44 kHz WAV + FFT plots) were analyzed to determine whether 8 kHz drive signals and multi-nozzle firing patterns leak printable content.

• A $950 Zeiss EM-109 transmission-electron microscope listed on eBay (Sherman, TX) was flagged as a potential ultra-low-cost TEM for hobbyist nanofabrication, despite its “won’t hold vacuum” caveat, while participants curated open-source fabrication carts for micro-milling, microfluidics, and Blu-ray laser micromachining.