One of his more interesting builds is his series on building rocket engines out of PVC pipe written in conjunction with [Chuck Knight]. For the propellent grains, the PVC rocket didn’t use the ...

The blast pipe also increased the draught to the fire by concentrating exhaust steam at the base of the chimney. This meant that the boiler generated more power (steam), so the Rocket was able to ...

Monday's launch was called off at the last minute because of a dysfunctional valve on one of the refueling pipes, according ...

Minutes before it was scheduled to launch Monday, the first commercial mission of Europe's new heavy-lift rocket Ariane 6 was called off due to an "anomaly" on the ground.