In the Dec. 23 & Jan. 6 SN: Our top stories of 2017, grounded pterosaur hatchlings, protectors of the Dead Sea Scrolls, a counterintuitive metamaterial, neutron star sizing, arrow of time reversed, E. coli in flour and more.
IT’SELECTRIC A new type of energy source made with hydrogel disks (shown) works a lot like the power-producing organs inside electric eels.
Thomas Schroeder and Anirvan Guha
LISTENING IN A computer code picked out six new types of dolphin clicks from several months’ worth of underwater sound recordings.
AI SPY A new type of artificial neural network has its virtual neurons (like the one illustrated above) organized into clusters called capsules. This helps the network more easily identify objects from new angles than its traditional counterparts.