All tagged ebook

Weighty words

If you own an eBook reader, you know it can save you a lot of shelf space: a 4GB model can hold around 3,500 books which would otherwise weigh around 2 tons. But is a 'full' eBook reader heavier than an empty one? Yes. Just. A billionth of a billionth of a gram heavier - about the weight of a DNA molecule.