Just as you can’t just call any whisky ‘Scotch’ or any wine ‘Champagne’, you can’t just call any ‘ol storm a blizzard. No, dear reader. The blizzard is the storm all storms aspire to be. Unlike a ‘severe’ storm, a ‘blizzard’ is decidedly hardcore. To earn the official title of ‘blizzard’, a storm must have three things: Severe snow […]
This two part series is written by my student Samira Daruki. Modern graph data sets are too large to fit in the memory. And so the streaming model is one of the more popular and attractive ones for analyzing massive graphs: in this model, for an input graph $G = (V, E)$ with $n$ vertices and $m$ edges, the edges arrive in an arbitrary order in a stream and the algorithm can only use $O(n)$ space. The algorithm is allowed to have several passes over the stream but usually the ideal case is
The first radar images of asteroid 2004 BL86, which made its closest approach today at 8:19 a.m. PST - a distance of only 745,000 miles (3.1 times the distance from Earth to the moon) - reveal that it even has its own small moon.The closeness did not take anyone by surprise. Asteroid 2004 BL86 was discovered on Jan. 30, 2004, by the Lincoln Near-Earth Asteroid Research (LINEAR) survey in White Sands, New Mexico and its trajectory is well understood. Monday's flyby was the closest approach the
The northeast of the United States is in the midst of a blizzard
, which could bring a potentially historic amount of snow to New York City. But earlier today, before temperatures drop and the snow covers everything, these large, star-shaped snowflakes were spotted all over the city.Read more...