# 'Teeny Ted' is worlds smallest book?

Reaching for your glasses won’t help you read this book. Teeny Ted from Turnip Town, written by Robert Chaplin, is written on tablets only 11×15 microns (1/1000 of a millimeter) wide. That means that you will need an electron microscope to read it. Though it was created back in 2007, this is the first I have heard of it.

To make the book, a focused ion beam machine was used to carve the pages into tablets of single-crystal silicon. It’s a pretty impressive feat to print an entire book in less than 7000 square microns, however I wonder how much physical space it would take to store it in digital form on a modern flash drive. Anyone know the calculation? [via international exhibition of calligraphy]

### 2 Responses to 'Teeny Ted' is worlds smallest book?

1. It seems like modern NAND Flash has a bit size of 0.01 ÂµmÂ².

Lets assume that there is 70 characters on each “table” – this would give us 70 chars * 30 tables * 8 bits per byte of information = 16800 bits.

The area of the book in a modern flash memory would then be 168 ÂµmÂ² or about 40 times smaller than this book, but you of course can’t read it with an electron microscope as flash

• Similarly on a hard disk, assuming a modest areal density of 500 Gigabits per square inch, the same 16800 bits occupy an area of only about 2 ÂµmÂ², assuming the bits are written as simple 1s and 0s. With an encoding scheme, this would increase by a factor of 2 or so.

And you could potentially read that with a good magnetic force microscope.