Topic: Fueling Nuclear Energy Regulations: Evidence from the Chernobyl Accident.

Speaker: Ryan ChenTitle: Co-rank 1 of Arithmetic Siegel--Weil

Ten minutes for your mind@2:50 every day at 2:50 pm in multiple time zones:Europa@2:50, EET, Athens, Helsinki (UTC+2) (7:50 am EST) https://us02web.zoom.us/j/88298032734Atlantica@2:50, EST, New York, Toronto (UTC-4) https://us02web.zoom.us/j/85349851047Pacifica@2:50, PST, Los Angeles, Vancouver (UTC=7) (5:50 pm EST) https://us02web.zoom.us/j/85743543699Almost everything works better again if you unplug it for a bit, including your mind. Stop by and unplug. Get the benefits of mindfulness without the fuss.@2:50 meets at the same time every single day for ten minutes of quiet together.No pre-requisite, no registration needed.Visit the website to view all @2:50 time zones each day.at250.org or at250.mit.edu

Come learn what's happening at MIT.nano and share your ideas!Since opening our doors in 2018, MIT.nano has grown from an impressive but empty building to an active laboratory supporting research from more than 250 MIT PI laboratories drawn from nearly 50 MIT departments, labs, and centers and welcoming hundreds of trained users into our spaces. On April 17, the MIT.nano staff will share with the MIT community what's been accomplished—and what comes next—including:Recent equipment installations;Equipment and design projects underway to integrate even more capabilities;MIT.nano programming and seminars;Your questions, ideas, and feedback.Join us afterward for an ice cream social in the MIT.nano East Lobby!SPACE IS LIMITED — PLEASE RSVPCan't join us in person? This event will also be webcast. Email your questions ahead of time to mitnano@mit.edu so we can be sure to answer them!

Speaker: Egor Shelukhin (University of Montreal)Title: Non-orderability and the contact Hofer metricAbstract: We discuss a recent joint work with Jakob Hedicke which relates contact non-orderability, the existence of positive contractible loops in the contactomoprhism group, and shortening in the contact Hofer metric. Together with considerations of contact open books, this shows that contact boundaries one-stabilizations of Weinstein manifolds, including the standard tight S1 x S2, are non-orderable.

Speaker: Tang-Kai LeeTitle: Uniqueness problems in mean curvature flow