Dear Physics Community,

Things to look at:

• Brain pickings
• From Pioneer Works run by Janna Levin.  Jana worked with Alan Guth while at MIT, I think, and then got into the Pioneer Works.  Everything she does is interesting and The Broadcast is no exception. She also wrote a book about LIGO, “Black Hole Blues”.

Advisories

Advisory about summer programs from Rafael

Physics Department

Contact tracing – Gov. Baker started, going old school by using people and phones.  Eventually, we’ll probably use our phones in some clever way, but right now, I’m betting on a phone tree.

HEPA filters – I’m starting to think about the air quality problem in closed rooms.  Aerosols hang around for tens of minutes and are not well controlled by masks.  The temptation is to open the windows, crank up the airflow and just get the stuff out, but turbulent flow around objects can cause aerosols to collect.  Not surprisingly, the pros have thought about how to do this, so I am going to digest this report before making a further nuisance of myself.

Los Endos

Repost – Nergis sent this last week, but I posted it with a bad link.

Peter

Peter