Labs (c) Yury V. Zaytsev (yury at shurup.com) and Art Vorobiev (art at shurup.com), 2006. 

Use with care. The last image in the Zeeman effect report is completely messed up, so draw it on your own. The X axes in the 
Frank-Hertz's experiment need to be rescaled by a quotient of 5 (I suppose?). The report on the Photoeffect seems to be 
just OK. Anyway, be very attentive. The reports are provided for educational purpose only and we can't be held liable for 
any direct or inderect damage they might cause.