Through Tuesday, July 30th, we will upgrade this website.  No 15:00 UTC Daily Colloquia until that time. Our Ann Arbor offices will remain open but this website will be a little janky from time to time.  We will return to our normally scheduled open-door sessions at that time.  We will provide accessible content related to summer recreation and athletic competition through the weekend; some of it coordinated with standardization issues relevant to the Summer Olympics.