Twitter announced via Tweet Thursday that it's launching its long awaited initial public offering. It will be the most high profile IPO since Facebook went public last year. But Twitter hopes to avoid the mishaps that's marred Facebook's stock market debut.
Something peculiar is happening to rivers and streams in large parts of the United States — the water's chemistry is changing. Scientists have found dozens of waterways that are becoming more alkaline. Alkaline is the opposite of acidic — think baking soda or Rolaids.
Research published in the current issue of Environmental Science and Technology shows this trend to be surprisingly widespread, with possibly harmful consequences.
What's especially odd about the finding is its cause: It seems that acid rain actually has been causing waterways to grow more alkaline.
To mark the Jewish holiday of Yom Kippur, the day of atonement, Jews fast from sundown to sundown. But before the sun sets, friends and family gather to enjoy one final meal. And for the Jews of Eastern Europe, that meal traditionally includes kreplach.