The shock wave of a supersonic jet flying over the Mojave Desert in California is seen in an undated NASA schlieren image released August Researchers used NASA-developed image processi
Supersonic Shock Waves of a Aircraft In the wake of recent success with air-to-air schlieren photography using the speckle.
The same (blue) area is swept out in a fixed time period. The green arrow is velocity. The purple arrow directed towards the Sun is the acceleration. The other two purple arrows are acceleration components parallel and perpendicular to the velocity.
Tesla Powerwall - This is amazing. Not only is it relatively cheap to power your home, but they are open sourcing the documentation for other companies to build these solar power packs.
14 Things You’d See If You’d Only Looked Up Engineering magic that still is.
In this photograph taken during the second successful mission to land on the moon, Apollo 12 astronauts captured the mystical scene of an Earthrise.