Wednesday, May 23, 2007

Rocket sled?

I honestly do not know exactly what this is. I suspect it is a rocket launched sled used to crash test an object. If that is the case, I suppose the main explosion would either be some charge used to send it on the way, or the sonic overpressure as it broke mach. I suspect that the other sounds are hits on the rail and the crash at the end. But I really don't know, this is just my guess. Anyone here with more information please comment your ideas or what you know.

Wednesday, May 9, 2007

Methane Engine

"NASA contractors Alliant Techsystems and XCOR Aerospace are developing a rocket engine powered by liquid methane. Earlier this year the companies conducted a series of successful test firings of their 7,500 pound-thrust LOX/methane engine . Such technology could one day allow for the exploration of deep space, as methane can be found or made on many worlds throughout our solar system."