As we explore new areas we intend to learn stuff. One of the most important things we can learn is how to do what we're doing safely. So as we think through various activities, we develop safety rules and keep after each other to follow them.

• astronomy laser pointer
• don't use safety features as slack
• goggles
• launch controller
• NOT a pipe bomb
• shrapnel shield
• sufficiently far from all flammable material
• think through all the failure modes you can think of