Portal:Technology/Did you know/1

... that DNA digital data storage has been called "apocalypse-proof" by one of its creators due to its longevity under certain conditions and its resistance to obsolescence?
... that rayon fibers used to make clothes come from trees pulped using the sulfite process?
... that the first SS class blimp (pictured) entered service on 18 March 1915, fewer than three weeks after work began on it?
... that Charles Stross's science-fiction novel Singularity Sky inspired a proposal to undermine the Taliban by giving every Afghan a free mobile phone?
... that from 1955 to 1973, the United States conducted a scientific initiative aimed at producing gravity-manipulation technology?