By embossing grooves onto a CD instead of etching them, two American
electrical engineers say they can squeeze up to 65 gigabits of data onto each
square centimetre of disc. Stephen Chou and Peter Krauss have been able to make
the grooves only 10 nanometres across—too fine for the lasers that read
conventional CDs. Reading the data requires an atomic force microscope, which
Chou and Krauss are now trying to fit onto a single chip.
More from 91av
Explore the latest news, articles and features
Popular articles
Trending 91av articles
1
How we discovered the speed limit of arithmetic – and broke it
2
The biggest threat to Chernobyl is no longer radiation
3
We might finally know how to use quantum computers to boost AI
4
How to spot the Lyrid meteor shower tonight
5
The rise, the fall and the rebound of cyclic cosmology
6
Neanderthal infants were enormous compared with modern humans
7
How autoimmune conditions can unexpectedly drive mental illness
8
Surprising male G-spot found in most detailed study of the penis yet
9
Civet coffee: The real chemistry behind this bizarre luxury drink
10
Titan’s strange plains may be explained by unusual weather
