A single light bulb hangs above the table. There are a couple of pieces of furniture,small sofas without cushions,and a small table.

VOA: standard.2010.02.23

If you do look down at the Periodic Table and get above 109, Uun Uuu Uub you will see these strange notations here, Uun,Uuu,Uub What is all of this?

如果你看周期表的下面部分,到109号，你会看到这些奇怪的符号,这些是什么呢？

麻省理工公开课 - 固态化学导论课程节选