The amazing system that tested the most powerful rocket engine ever

A photo of the Rocketdyne F-1 rocket engine—"the most powerful single-nozzle liquid-fueled rocket engine ever flown"—being tested at the Marshall Space Flight Center, Alabama. Five of them powered the first stage of the Saturn V. Watch and listen to all of them being tested—in Dolby 5.1 sound. It's amazing. » 7/18/14 11:55am 7/18/14 11:55am

Truck transported on a ropeway going up a 5,400-foot mountain

Linthal 2015 is one of the most fascinating power projects going on in the world right now. When finished, this 2.35-billion-dollar pumped storage system will be able to generate as much power as a nuclear power plant—1,480 MW. The only problem is that there are no roads connecting the construction sites, so they have… » 5/15/14 2:23pm 5/15/14 2:23pm

The definitive collection of secret Nazi weapons

Underwater missiles that could have hit New York, jet-powered bombers that were nearly impossible to intercept, sub-orbital bombers, vertical launch rocket fighters, or infrared visors are just a few of many in this definitive collection of incredible Nazi weapons. Be happy that those bastards never got to mass… » 12/18/13 4:57pm 12/18/13 4:57pm