Misc: What is the name for the study of liquid flow?

Questions

Critical photolithographic dimensions in 1995 are measured in these units?

EEPROM memory devices rely on this tunneling mechanism for cell erase:?

Element recently (1995) disclosed by IBM to catalyze certain metal contacts:?

Optical technique commonly used to measure thin film thickness, and RI:?

------- & Righter (former US owners of Scrabble rights)?