Every week on the Cool Tools Show podcast, Kevin Kelly and I interview an interesting person, and ask them about four of their favorite tools. Our guest this week is Ben Krasnow. Ben works at Google[x], Google's semi-secret technology development facility, where he creates advanced prototypes. Ben previously developed virtual reality hardware at Valve. After work, he spends time on various projects that usually involve circuit design, machining, and chemistry. Ben makes things that usually require a lot of money and sophisticated equipment: an electron scanning microscope, silica aerogel, and freeze-dried astronaut ice cream (I've tasted it, and it's spectacular). You can follow Ben's projects on his youtube channel, Applied Science.