Coronavirus by Ciro Santilli 40 Updated 2025-07-16
youtu.be/oCelMyMtRCk?t=167 mentions that they get their lipid layer from the Golgi complex of the host, where they replicate.
Retrovirus by Ciro Santilli 40 Updated 2025-07-16
Integrates its RNA genome into the host genome.
Sounds complicated! The advantage is likely as in HIV: once inside the cell, it can remain hidden far away from the cell surface, but still infections.
Vacuum engineering by Ciro Santilli 40 Updated 2025-07-16
Video 1.
Air-tight vs. Vacuum-tight by AlphaPhoenix (2020)
Source. Shows how to debug a leak in an ultra-high vacuum system. Like every other area of engineering, you basically bisect the machine! :-) By Brian Haidet, a PhD at University of California, Santa Barbara.

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