The Obama camp was thrown by Sarah Palin's appointment, says Ryan Lizza in a New Yorker podcast, but chief strategist David Alexrod told the Obama staff not to worry, the Republicans had spoilt their story, they couldn't attack the Democrats anymore about inexperience.
Swarm of nanorobots can remove tiny plastic fragments from water
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In just 2 hours, small metal robots can capture most nanoscopic plastic
particles from a sample of water
2 hours ago
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