Ship-to-ship personnel transfer gangway with full motion compensation in rough waters
u/toolgifs — 13 hours ago
r/EngineeringPorn
Big brake of the day
Today's big brake topic - the Orion spacecraft's heat shield :)
A single use brake that will only just survive a single stop from 23,864 mph, at sustained decelerations of 3.5g.
https://www.nasa.gov/blogs/missions/2026/04/09/artemis-ii-flight-day-9-crew-prepares-to-come-home/
Last time on Artemis I, the heat shield suffered more material loss than planned (second pic).
u/dyqik — 24 hours ago
The Soviet GAZ-14 truck, a 1936 model, consumed 80 kilograms of firewood per 100 Kilometer
u/Suspicious-Slip248 — 10 hours ago
A Hoberman sphere mechanism is a kinetic structure, typically made of angulated bars and revolute joints, that expands and contracts in a single degree of freedom.
u/GloomyCity9841 — 11 hours ago
Seeing a Vertical tube honing machine for the first time
i have seen horizontal tube honing, this was my first look at a vertical machine. The vertical setup helps maintain alignment in long, heavy tubes. It also occupies less floor space in the workshop. Plus the honing oil flow is different from the machine I saw previously. It also occupies less floor space in the workshop. Horizontal machines seem ideal for shorter and general applications. The vertical machine looks like helps maintain alignment in long, heavy tubes.
u/Sharp_Worker_5924 — 1 day ago
Week