Have some fun(nel) on a tunnel or sun(nel) walk! Join us for a 30-minute volunteer-led walk either through MIT’s famous tunnel system or around Killian Court. As the weather gets warmer, walk leaders may choose to take the group outside. Is the weather warm and you missed the start? Find the group on Killian Court and join in!Sun(nel) Walk Leaders will identify themselves by holding a white flag at the meeting location.Location details: Meet in the atrium by the staircase. [See image below]Prize Drawing: Attend a walk and scan a QR code from the walk leaders to be entered into a drawing for a getfit canvas boat tote bag at the end of the getfit challenge. The more walks you attend, the more entries you get. Winner will be drawn and notified at the end of April. Winner does not need to be a getfit participant.Disclaimer: Tunnel walks are led by volunteers. In the rare occasion when a volunteer isn’t able to make it, we will do our best to notify participants. In the event we are unable to notify participants and a walk leader does not show up, we encourage you to walk as much as you feel comfortable doing so. We recommend checking this calendar just before you head out.Getfit is a 12-week fitness challenge for the entire MIT community. These tunnel walks are open to the entire MIT community and you do not need to be a current getfit participant to join.

MIT Free English Class is for international students, sholars, spouses. Twenty seven years ago we created a community to welcome the nations to MIT and assist with language and friendship. Join our Tuesday/Thursday conversation classes around tables inside W11-190.

Join us for a rejuvenating 30-minute meditation session led by an experienced Buddhist monk.This weekly session is open to the MIT community and offers a peaceful break to manage stress, ease frustration, and enhance focus. By practicing mindfulness meditation, you'll not only boost your compassion, energy, and productivity but also connect with like-minded peers who share a passion for mental wellness. Sessions feature light meditation guidance and time for silent practice.Whether you're new to meditation or an experienced practitioner, this session provides a supportive space to cultivate inner peace and resilience. Don't miss this opportunity to recharge and foster a mindful community.

"The Impacts of Employee Recognition Programs on Workers and Firms: The Role of Managerial Discretion vs. Worker Voting" | Namrata Kala (MIT Sloan)

Speaker: Qiwei Yu (Princeton)Title: Nonequilibrium Physics of Biological Functions: Bacterial Chromosome Segregation and Chemotaxis Signaling as ExamplesAbstract:Living systems operate far from equilibrium. Continuous dissipation of free energy is required to fulfill a wide range of biological functions—from error correction and environmental sensing to collective behaviors. The close connection between dissipation and function raises two physics questions: (1) How can we quantify dissipation in a complex biological system, especially when only mesoscopic degrees of freedom are accessible? (2) What is the mechanism by which nonequilibrium dynamics is harnessed to execute specific functions?This talk will cover our progress on both fronts. To address the first question, we developed a renormalization-group-type analysis in coarse-grained nonequilibrium systems, which revealed a scaling law for energy dissipation. I will then focus primarily on the second question and present our recent work on two nonequilibrium processes in Escherichia coli: how nonequilibrium polysome dynamics couples chromosome segregation to cell growth, and how dissipative interactions in the chemosensory array enhance signaling speed, sensitivity, and robustness. These examples illustrate the importance of nonequilibrium processes in living systems.

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