The pistachio problem is solved: “A new gadget uses the distinctive pings made by bouncing nuts to sort the open shells from the uncrackable closed ones.” (New Scientist)

Q: So, has success changed you?

A: Yeah, it’s changed me. You know how when you’re eating pistachios and you find one that’s hard to get the shell open? Well, I don’t bother with them anymore.

— Bob Weir [thanks, Paul]