Hacker News on 13 July 2009

• Twenty questions about the GPL
• Visualization of L1, L2, Ram and Disk latencies [gif]
• Have you ever been successful in changing your personality?
• Couldn't sleep. Wrote some code to displays live feed of latest twitpics.
• Rsync.net Warrant Canary
• Persistent Myths in Feminist Scholarship
• Blue and Green color illusion
• Night owls have more mental stamina than those who awaken at the crack of dawn
• Calorie restrictive eating for longer life? The story we didn’t hear in the news
• 'This is what an IED looks like. I took this photo near Kandahar.'