Month: June 2014

$40b Missile Defense unreliable

Despite years of tinkering and vows to fix technical shortcomings, the system’s performance has gotten worse, not better, since testing began in 1999. Of the 8 tests held since GMD became operational in 2004, 5 have been failures.

awkward for international relations, given that this missile defense system was supposed to keep others in check, both rogue and not.

Halophytes

you don’t need desalination for agriculture if you go for plants that can tolerate salt water. there are 1000s of them.

More than 97% of the water on Earth is saline. Wouldn’t it be cruel if nature had locked up the vast bulk of the planet’s vital fluids in a form that no plant could drink? Well, as it happens nature is not quite that cruel. Of the 400K flowering plant species around the world, 2600 do drink seawater. They are halophytes, meaning ‘salt-plant’, and they might just be the answer to a question surprisingly few governments have yet asked: namely, how can we put our planet’s practically infinite volumes of saltwater to good use?

33% Turing test

If a computer is mistaken for a human more than 30% of the time during a series of 5 minute keyboard conversations it passes the test. Eugene managed to convince 33% of the human judges that it was human.

30% seems a low bar (why not > 50%?) but this is still an interesting historical footnote.