2012-05-30 11:57:05 | | 环球科学
We’ve long understood black holes to be the points at which the universe as we know it comes to an end. Often billions of times more massive than the Sun, they lurk in the inner sanctum of almost every galaxy of stars in the universe. They’re myste...
What a Plant Knows
2012-05-30 11:47:27 | | 环球科学
How does a Venus flytrap know when to snap shut? Can it actually feel an insect’s tiny, spindly legs? And how do cherry blossoms know when to bloom? Can they actually remember the weather? ...