A place to geek out about engineering, fabrication, and design. All disciplines are welcome. Ask questions, share knowledge, show off projects you're proud of, and share interesting things you find.
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The community icon is ISO 7000-1641.
The current community banner image is from Lee Attwood on Unsplash.
Shadowgraphs of fluid disturbances around high-velocity vehicles demonstrate how a blunt-bodied vehicle produces a shockwave in front of the vehicle, which allows it to stay cooler during reentry. 1960.
Source: https://rarehistoricalphotos.com/nasa-wind-tunnels-photos/
This is cool as hell