In the ’60s, rocket engine design and manufacturing company Rocketdyne had tried to make the J-2T Aerospike, a toroidal aerospike concept intended as an improvement over the Rocketdyne J-2 engine for ...
Building a Lego set is the perfect new year project — and luckily, there's tons of different options to choose from. If you're a Disney, Marvel or Star Wars fan, you can snag a ...