Reminds me of the pneumatic tubes used in hospitals to send labs between units. You can tour the pneumatic tube system at Stanford- it's several miles long. h

Reminds me of the pneumatic tubes used in hospitals to send labs between units. You can tour the pneumatic tube system at Stanford- it's several miles long. https://www.atlasobscura.com/places/pneumatic-tubes-at-stanford-hospital https://www.atlasobscura.com/places/pneumatic-tubes-at-stanf...