engineered pinball

I see some ferromagnetic items in the pinball machine. What do you see? The most expensive thing ever engineered is the International Space Station (ISS). It cost $100 billion. The ISS was launched in 1998 and was created by five space agencies: NASA (United States), Roscosmos (Russia), JAXA (Japan), ESA (Europe), and CSA (Canada). The ISS, which can be seen without the aid of a telescope, enables experiments to be conducted in microgravity and zero-gravity.