Category: Sense Perception

Podcast: Radiolab: Outside Westgate

January 21, 2015

“In the wake of public tragedy there is a space between the official narrative and the stories of the people who experienced it. Today, we crawl inside that space and question the role of journalists in helping us move on from a traumatic event.

NPR’s East Africa correspondent Gregory Warner takes us back to the 2013 terrorist attacks on the Westgate Mall in Nairobi, Kenya. Warner reported on the attack as it happened, listening to eyewitness accounts, sorting out the facts, establishing the truth. But he’s been been wrestling with it ever since as his friends and neighbors try not only to put their lives back together, but also try to piece together what really happened that day.”

http://www.radiolab.org/story/outside-westgate/

I made a shorter version of this podcast to play in class:

For Air Crash Detectives, Seeing Isn’t Believing

January 21, 2015

“The investigators say there is no evidence in the wreckage or on the flight recorders of an in-flight fire or explosion. A plane breaking up in flight, as this one did, might in its last moments produce flashes of fire from engines ripping loose, but the idea that the plane caught fire is a trick of memory, they say.”

http://www.nytimes.com/2002/06/23/weekinreview/ideas-trends-for-air-crash-detectives-seeing-isn-t-believing.html

3D Printed Sculptures Look Alive When Spun Under A Strobe Light

January 21, 2015

016f6df88df5b9a1ba59f727889ee5e1“This series of 3D printed sculptures was designed in such a way that the appendages match Fibonacci’s Sequence, a mathematical sequence that manifests naturally in objects like sunflowers and pinecones. When the sculptures are spun at just the right frequency under a strobe light, a rather magical effect occurs: the sculptures seem to be animated or alive! The rotation speed is set to match with the strobe flashes such that every time the sculpture rotates 137.5º, there is one corresponding flash from the strobe light.”

http://artstyle.sfglobe.com/2015/01/14/3d-printed-sculptures-look-alive-when-spun-under-a-strobe-light/?src=share_fb_new_32233

3D compass cells found in the bat brain

January 21, 2015

“All mammals – including, probably, humans – have a global positioning system in their brains, which consists of at least three different cellular components. John O’Keefe, a neuroscientist at University College London, discovered the first component of the brain’s GPS in 1971. While recording nerve cell activity in the hippocampus of freely moving rats, he found neurons that fire only when the animals are in a specific area of their enclosure, and speculated that these ‘place’ cells play an important role in creating mental maps of the environment.”

http://www.theguardian.com/science/neurophilosophy/2014/dec/03/3d-compass-cells-bat-brain