Breakthroughs of the Years

Since 1996, Science magazine has named a single " Breakthrough of the Year " as well as several runners-up. This year's is the growth of renewable energy , especially solar. But what about the past thirty years, can we see any themes or a bigger picture? Here is a quick look at the categories, as roughly laid out by me: Life sciences: 17 Human health: 8 HIV (understanding, treatment as prevention,…