生态城市中的环境艺术可行性

干净、健康的生态城市是当前全球环保意识逐步增强的趋势下人们所普遍期望的生存空间；环境艺术则是满足人们在视觉欣赏、心理愉悦等精神层面的需求。本文就环境艺术的特定概念及其在生态城市中的几种可行性进行简单介绍，通过结合国际上一些案例，让我们更好地了解到环境艺术如何在生态城市空间中得以充分展现。     

Die Technik der Glasherstellung in der Antike

Scientific analysis of glass, excavations, and written evidence in Greek and Roman literature provide reliable information on the manufacture of glass in antiquity. In the second millenium BC, when other vitreous materials had already been known for 3000 years, hollow glass was produced in Egypt. From the early sandcore technique the manifold methods of glassmaking by casting in molds, blowing in molds, and free blowing then rapidly evolved. These techniques achieved their highest perfection in the Roman period when elaborate techniques for surface decoration were developed, but not rediscovered until recently.