Revolving Doors
99% Invisible
00:00
How to Stake Out a Building in Downtown Oakland
Avery Truffleman, an intern at 99 PI HQ in Oakland, took to the streets of downtown Oakland. Avery and Sam recorded how many times revolving doors were used over a 30-minute period. The results: 71%. That's up 43 points from where he started at 28%. And when someone did use a revolving door, it was notable.
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Transcript
