SPACETALKS
Rocketry and ROVSat the Boys RanchA nurturing and supportive communityCal Farley’s provides professional programs and services in a Christ-centered atmosphere to strengthen families and support the overall development of children.…
Eric’s 1913 Mercer Raceabout and Model Making
This page showcases Eric's model project and lists a set of tools that can help you start a project of your own.Eric, a member of the SacL5 Society, has taken…
SacL5 Website Traffic Report 4/18/26 – Visits: 29,400 (+917)
SacL5 Web Site Traffic Report - Mission Day: 2,382 698 (-208) visits last 30 days 9,832 (+486) visits last 12 months 29,400 (+917) visits since Oct 10, 2019 2,011
Boys Ranch Underwater ROV
Boys Ranch - "Sea Rider" - Underwater Remotely Operated Vehicle BR has many STEM and Engineering projects. Here we see a full build of an ROV with off the shelf…
Boys Ranch Rocketry
Boys Ranch rocketry program was featured on "Texas Country Reporter." During a trip to Boys Ranch, a videographer followed youth in the rocketry program as well as their mentor, Barré…
SacL5 Website Traffic Report 3/14/26 – Visits: 28,483 (+1163)
SacL5 Web Site Traffic Report - Mission Day: 2,347 1,026 906 (-120) visits last 30 days 8,592 9,346 (+754) visits last 12 months 28,483 (+1163) visits since Oct 10, 2019…
Space Radiation Shielding Practical Considerations
While space radiation is frequently cited as a primary constraint on human spaceflight, its risks can be mitigated more effectively than some current regulatory framing implies. This paper outlines practical…
660,000 Supercomputers in your pocket
WOW FACTOR Your iPhone vs. 1965 Supercomputing If you wanted in 1965 the computing power you now hold in your iPhone, you would have needed to spend the equivalent of:…
SacL5 Website Traffic Report 2/7/26 – Visits: 27,320 (+957)
SacL5 Web Site Traffic Report - Mission Day: 2,312 1,026 (-162) visits last 30 days 8,592 (+743) visits last 12 months 27,320 (+997) visits since Oct 10, 2019 2,011
Space Port with Orbital Tether
Orbital Tethers Catch and Release Shave precious delta-V off the cost to orbit Why Orbiting Tethers• Orbiting tethers: long tethers making one revolution per orbit, with the same end pointing…
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