For a mere $3 million, you can have your very own supersonic car. It’s called The Spirit of America Sonic Arrow. This 1996 custom vehicle was built to reach up to 900 MPH and comes with spare parts, design schematics, tractor trailer rig, and more. Basically, the project is shutting down and the owners want to liquidate the entire operation.

Link via DVICE | Photo: Project 100

It’s been over six decades since Chuck Yaeger broke the sound barrier, but photos of fighter jets hitting Mach 1 has always fascinated us. Here’s a new photo of an Air Force F-22 Raptor  aircraft breaking the sound barrier while performing aerial maneuvers in the Gulf of Alaska:

The phenomenon is not well studied. Scientists refer to it as a vapor cone, shock collar, or shock egg, and it’s thought to be created by what’s called a Prandtl-Glauert singularity.

Here’s what scientists think happens:

A layer of water droplets gets trapped between two high-pressure surfaces of air. In humid conditions, condensation can gather in the trough between two crests of the sound waves produced by the jet. This effect does not necessarily coincide with the breaking of the sound barrier, although it can.

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From the Upcoming ueue, submitted by Geekazoid.