writes "Pick a a type of storage device (hard drive, thumb drive, RAM memory chip, CD, DVD, BRD, whatever), and set every bit possible to 1, within the limits of how the device works. Would it weigh more than it would if you set all the bits to 0? Obviously if there's a difference, it wouldn't be large even if the storage device could hold terabytes. I'm not sure it would even be measurable. But in theory is there a difference, however small?"