Taginfant

Word Birth

The question of how children acquire language has long intrigued parents and scholars. MIT cognitive scientist Deb Roy recently found a novel way to study what he calls “word birth.” He wired his home with cameras and microphones, and...

grasshopper effect

grasshopper effect  n.— «Every human in the world carries in his or her body traces of POPs, which circulate globally through a process known as the “grasshopper effect” and include such chemicals as dioxins, furans, DDT and PCBs, which...