One practical realm in which this comes up: how long a webpage (seems to) take to load. How are programmers designing tricks to make this seem faster? Do animations help or not help? Check out the article in Wired.
I posted before about my scanning of a 3,000 year old mummy, Neskhons. Now, by analyzing the data in several different ranges of electron density, I've found something unexpected: inside the mummy's torso are 4 small funerary amulets.