Keep in mind 40% of the human race still lives on two dollars a day or less, in dire poverty, and the vast majority have no electricity. Without access to electricity they remain "powerless," literally and figuratively. All other economic development is impossible in its absence.展开全文 原微博
40% of the human race still lives on 2 dollars a day or less, in dire poverty, and the vast majority have no electricity. Without access to electricity they remain "powerless," literally and figuratively. All other economic development is impossible in its absence.展开全文 原微博
I used to say I'm a future Nobel Prize winner. But gradually I've realized that, winning the price itself is not the profoundest thing. Instead, it is that the ideas, the spirits, the processes to achieving it, and the inspiration behind it make giant contribution to this world.展开全文 原微博
True. R136a1 is the most massive star known. It is an estimated 265 solar mass. VY Canis Majoris is the largest known star, a red hypergiant that is approximately 1,420 ± 120 solar radiius. But it only has an average density of 5 to 10 mg/m3, and estimated 30-40 solar masses.展开全文
