The instrument is an early version of a training device popularized by optometrists.
An excerpt from "The Future of the Mind" by theoretical physicist Michio Kaku.
This excerpt from "It's Complicated" explores how advances in technology afford teens new ways of communicating secretively.
Dogs are helping improve our understanding of various human maladies and how we might treat them.
Science Friday® is produced by the Science Friday Initiative, a 501(c)(3) nonprofit organization.
Science Friday® and SciFri® are registered service marks of Science Friday, Inc. Site design by Pentagram; engineering by Mediapolis.