# Summary of IRC Log from #hplusroadmap (Nov 23, 2013)

• A discussion about vacuum chamber construction took place, with user juri_ exploring how to build a chamber capable of achieving 10^-4 torr using steel laminate compressed with bolts and vacuum grease, while seeking solutions for wiring and gas nozzle penetrations.

• Users discussed bandwidth pricing in the US, with jrayhawk_ noting that Cogent offers some of the cheapest bandwidth at slightly under $5/Mbps, in response to someone mentioning "$160/mo for 12 TB on 800 Mbps" service.

• A conversation about Bitcoin mixing techniques occurred, discussing how splitting coins repeatedly during mixing helps ensure that no more than 0.1% of someone's "dirty" history remains, with client-side statistical analysis allowing nodes to determine which coins are appropriate for their use.

• Users shared and discussed scientific papers through paperbot, including papers on metal nitrides deposition, silicon nitride LPCVD, and a Nature paper, demonstrating the channel's focus on technical research.

• The conversation touched on "GitHub for science" platforms, with kanzure noting that many such services lack actual git repositories, and recommending ShareLatex for version control of scientific documents.

• Users briefly discussed Disqus as a commenting system, with kanzure criticizing its heavy reliance on JavaScript while acknowledging its ability to export comments as XML for migration to other systems.