第一篇 回顾与展望 - the Educator Login page!

time. The Little Doctor could never be used on a planet. Still, I wish I'd had one during the Second Invasion.""How does it work?""I don't know, not well enough to build one. At the focal point of two beams, it sets up a field in whichmolecules can't hold together anymore. Electrons can't be shared. How much physics do you know, at thatlevel?""We spend most of our time on astrophysics, but I know enough to get the idea.""The field spreads out in a sphere, but it gets weaker the farther it spreads. Except that where it actually runsinto a lot of molecules, it gets stronger and starts over. The bigger the ship, the stronger the new field.""So each time the field hits a ship, it sends out a new sphere--""And if their ships are too close together, it can set up a chain that wipes them all out. Then the field dies down,the molecules come back together, and where you had a ship, you now have a lump of dirt with a lot of ironmolecules in it. No radioactivity, no mess. Just dirt. We may be able to trap them close together on the firstbattle, but they learn fast. They'll keep their distance from each other.""So Dr. Device isn't a missile -- I can't shoot around corners."That's right. Missiles wouldn't do any good now. We learned a lot from them in the First Invasion, but theyalso learned from us -- how to set up the Ecstatic Shield, for instance.""The Little Doctor penetrates the shield?""As if it weren't there. You can't see through the shield to aim and focus the beams, but since the generator ofthe Ecstatic Shield is always in the exact center, it isn't hard to figure it out."第 285 页 共 340 页http://www.en8848.com.cn/ 原 版 英 语 阅 读 网