lucadebiase: RT @sciencebase via @MuckRack Why nails scratching a chalkboard gives you the jitters - http://j.mp/3XewC1 RT @danlevitin (via @TerrySmall )
lucadebiase: RT @sciencebase via @MuckRack Why nails scratching a chalkboard gives you the jitters - http://j.mp/3XewC1 RT @danlevitin (via @TerrySmall )
