Because of the pandemic, our show is currently pre-recorded, so the #SciFri team have not able to take our audience's calls. We miss having listeners' voices on our radio program. We still want to hear from folks on our VoxPop app, but we're also experimenting with something new—we’re inviting our listeners to join us live for select recordings for #ScienceFriday on the radio! The event was recorded on Monday, November 16, 2020. The segment airs on the radio and our podcast on Friday, November 20, 2020. If you'd like to join future live zoom call-ins to get your questions on the air with us, sign up for updates at sciencefriday.com/livestream. --- Ira Flatow interviews podcaster and author Roman Mars from 99% Invisible to talk about the science behind how we design our built spaces.