Significats de amateur rocketry en anglès

Large, Dangerous Rocket Ships is among the world's biggest amateur rocketry events.

If you think the amateur UAV guys are nuts, you should see the amateur rocketry guys.

John Wickman, president of CP Technologies, an amateur rocketry supplier, said his company's sales have dropped by about 50 percent since the act passed.

The institute will host nightly public lectures this week on subjects ranging from amateur rocketry to the northern lights, septic tanks and bird watching.