4 ms·

It's one balloon, Michael. What could it cost, 10 dollars?

• phil21 8mo ago
  A large Mylar party balloon with helium? Yeah probably about that depending on where you are and the balloon type and size.
  • deleted 8mo ago
    [deleted]
  • SideburnsOfDoom 8mo ago
    Yep. It seems like for this application you'd want a larger one, a few feet across, with a nice shiny metal foil coating for the radar to bounce off. So, not a $1 balloon.