# Summary of IRC Log from January 22, 2017

• A discussion about large-scale space structures took place, specifically referencing "Self-deployed extremely large low mass space structures" which proposes using 10,000 kilometer diameter bubbles with metal vapor deposition for constructing large space structures.

• Kanzure shared information about a patent for "Microgravity fabrication and metalization of large, lightweight polymeric bubbles and films for space system applications," suggesting potential applications for space habitats.

• The concept of "crashportation" was discussed, where large lightweight foam structures could be deployed in front of spacecraft to absorb impact forces when encountering asteroids or planets, potentially spreading forces over several seconds.

• A NASA NIAC (NASA Innovative Advanced Concepts) project called "SpiderFab" was mentioned, which involves architecture for on-orbit construction of kilometer-scale apertures.

• A 100-person Mars transfer vehicle concept using torpor-inducing habitats was shared, representing an innovative approach to long-duration space travel.

• A user reported observations about a 405nm handheld laser pen having a peak at approximately 1200nm (3x wavelength), discussing potential calibration challenges with silicon detectors.

• Information was shared about security vulnerabilities in Linux systems, with links to exploit databases that document numerous reported exploits.

• A reference was made to "A History of Life-Extensionism in the Twentieth Century," though it was noted this was only a historical overview rather than an examination of theories and evidence.