Can you judge the measure of a scientist by the desk they work on? National Public Radioâ€™s Science Friday has a series of short interviews with prominent scientists giving tours of their work spaces. See a painting of Michio Kaku with a lightsaber. Wonder if Neil deGrasse Tyson is any less sexy for his Starry Night kitch collection. And sit for a few minutes and enjoy Oliver Sacks’s rock collection. (Brian Greene seems too busy moving between dimensions to have much of anything on his desk.) Lighthearted and occasionally poignant, these are great little things to watch in between tasks.