- A group was reported to be using a discontinued Epson inkjet printer with piezoelectric print heads for an unspecified bio-printing or micro-fluidics application.  
- Links were shared to two open-hardware 3-D printer designs: a CoreXY-style machine documented at http://audiots.wordpress.com/2013/05/26/going-back-no-corexy-for-a-while/ and the large-volume “WolfHBot” HBOT printer at http://wolfmanjm.github.io/wolfhbot/.  
- A member outlined a low-cost citizen-science project to measure ambient hydrogen-sulfide (H₂S) levels using a $20–30 electrochemical sensor, a microcontroller, and local calibration, motivated by official air-quality reports that ignore sulfur compounds despite a noticeable odor near oil-storage pipelines.  
- Lightning data from the real-time Blitzortung network (http://www.blitzortung.org/Webpages/index.php?lang=en) was highlighted as an example of open environmental sensing.  
- A Python import-path debugging discussion revealed subtle module-resolution issues when moving import statements within a project, prompting suggestions to use importlib, pdb, or gdb for diagnosis.  
- The bash construct “<(" … ")" was identified as “process substitution,” with practical examples such as diff <(cmd1) <(cmd2) and advice on enabling it in Makefiles via SHELL := /bin/bash.  
- A recently disclosed OpenVZ container-escape vulnerability was noted, with most low-end VPS providers already patching and rebooting nodes; users were advised to verify fixes with their hosts.  
- A brief film critique compared “Transcendence,” “Limitless,” and the upcoming “Lucy,” focusing on Hollywood portrayals of intelligence amplification and non-destructive mind uploading.  
- Paperbot delivered pay-walled research papers on demand, including a Journal of Cognitive Neuroscience article on spontaneous neural fluctuations predicting attentional decisions and an ACS Biomaterials paper requested via DOI 10.1021/bm5002203.