Energy from the microwave background radiation and from collisions among the atoms would have sufficed to flip electrons and induce the hydrogen to glow feebly. 从微波背景辐射以及原子碰撞而来的能量，已足够翻转电子，使得氢气微微发光。
He is a futurist with a track record and enough credibility for the National Academy of Engineering to publish his sunny forecast for solar energy. 他是个未来派，有背景，也足够可靠，能让国家工程学会对他那套乐天派的太阳能预言感冒。
