# Key Points from IRC Log

• Discussion about wiki security and management, including methods to disable user accounts (usermod -L, chsh to /bin/false) and considerations for repository management, with suggestions to use separate repositories rather than branches for better security.

• Participants shared information about the Mars Curiosity rover landing, with links to NASA's live stream and celebration when the rover successfully touched down on Mars, including sharing of the first images tweeted by the rover's account.

• Kanzure imported content from the hplusroadmap mediawiki to a git-based wiki system, with discussion about which pages were worth preserving and which needed significant revision or removal.

• A conversation about 3D printing capabilities included confirmation that 3D printers can produce functional screw threads, with links to OpenSCAD screw libraries and other resources for creating threaded components.

• Discussion about finding cost-effective ballast materials for robotics projects, comparing options like concrete ($0.34/lb), lead shot ($1.47/lb), and other dense materials, with concrete being identified as particularly cost-effective.

• Criticism of NASA's "Eyes on the Solar System" application for using Unity and Java plugins rather than more accessible technologies, with participants sharing direct streaming links to bypass these requirements.

• A link was shared to a blog post criticizing Elsevier for charging to read "open access" content, highlighting ongoing issues in scientific publishing.