On this week’s Tech Nation, Moira speaks with Dava Sobel, author of “Longitude” and her new book: “The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars.” Then on BioTech Nation, Tom Kottler, the CEO of Healthprize Technologies, talks about strategies to get patients to take their prescribed medications. And Dr. Arnold Lippa, the Chief Scientific Officer of RespireRX reveals their multiple approaches to the respiratory problems relating to the overuse of opioids.