As pedestrians head down Halsted Street in the Fulton Market district, a spiral structure in the middle of the Mews Pedway invites them to walk toward its center. At a glance, the coil seems to have ...
Loren Burnett, the CEO of Prometheus Materials in Longmont, thinks it's time to reconsider the concrete block. His company's proposed alternative is a "bio-cement" first developed at the University of ...