Life, August 9, 1948
Researchers have long suspected humans aren’t the only species capable of calculating mathematical functions — a new study appears to confirm that suspicion.
Neurobiologist Margaret Livingstone leads a research team that has successfully trained three rhesus macaques to identify symbols representing the numbers zero to 25 and perform calculations to receive rewards.
"We found that they could combine symbolically represented magnitudes, and they transferred this ability to a novel symbol set, indicating that they were performing a calculation, not just memorizing the value of each combination."
Photo Credit: Margaret S. Livingstone
Atomic age. In top photo Dr. Sidney Levitsky (right), National Heart Institute surgeon, and Michael Bremigan, NHI technician, are shown with Brunhilde, the four-year-old fox hound that received the world’s first atomic-powered heart pacemaker on May 26. Dr. Levitsky implanted the plutonium-powered device which underwent extensive testing by AEC. The pacemaker is designed to provide reliable power for 10 years and generates electricity from a total of 0.135 thermal watt of isotopic power. Picture above shows the relative size of the nuclear-powered cardiac pacemaker and heart lead (electrode). The heart lead is normally in contact with the left ventricle and receives the pacing pulses to the heart generated by the pacemaker.
New Energy Sources Power Heart Devices: Batteries, energy transmission, biological fuel cells, nuclear power plants supplant older energy sources
In a cruel and brutally destructive practice, fishermen in Peru are killing dolphins to use as shark bait. “The shark meat is predominantly consumed within Peru, but the fins we’re told are being exported to the Far East for use as shark fin soup,” explains Pulitzer Center grantee Jim Wickens, who documents the slaughter in a documentary for Link TV.
The practice is illegal, but Jim estimates that some 10,000 dolphins are killed each year.
|—||Gabriel García Márquez, One Hundred Years of Solitude|
I made veggie burgers for the first time. No picture of the final product because they stuck to the pan like someone soldered them there. Tasty though.
Montaigne on animals:
We are perfectly able to realize how superior they are to us in most of their works and how weak our artistic skills are when it comes to imitating them. Our works are coarser, and yet we are aware of the faculties we use to construct them: our souls use…