The basic dynamics of high speeds in one frame of reference is proposed as an approach to relativity. Students could use the methods of generalizing used with Snells law and thermal expansions. (DS)

Presents an activity in which students make their own cartoons and discover how to create the illusion of motion. (NB)

Separating theoretical knowledge from practical knowledge and from direct engagement with dance is limiting and distorts nature of dance. The challenge is to demonstrate how rationality of subject works, show progress from intention to action in creating and performing dances, articulate purposes of making and performing a work, identify…

As part of the discussion about Newton's work in a history of mathematics course, one of the presentations calculated the amount of energy necessary to send a projectile into deep space. Afterwards, the students asked for a recalculation with two changes: First the launch under study consisted of a single stage, but the students desired to…

This article presents a formal theory of robot perception as a form of abduction. The theory pins down the process whereby low-level sensor data is transformed into a symbolic representation of the external world, drawing together aspects such as incompleteness, top-down information flow, active perception, attention, and sensor fusion in a…

If the point of suspension of a multiple pendulum is suitably oscillated then the pendulum can remain in motion in an upside-down position. Since such pendulums can model flexible materials, this inverted motion is sometimes referred to as an 'Indian rope trick'. Despite the complexity of the governing differential equations, this rope trick can…

A novel paradigm investigates the ability to understand an agent's intended goal in children with autism (N = 25), typically developing children (N = 46), and adults (N = 16+12) by watching a non-human agent's kinematic properties alone. Computer animations depict a circle at the bottom of a U-shaped valley rolling up and down its slopes and…

Neutrophils are white blood cells specialized for scavenging cellular debris and consuming infectious microorganisms in a process called "phagocytosis." What seems to make neutrophils especially voracious is the presence of antibodies (or opsonins) coating the surface of foreign cells. Recently, Dewitt and Hallett (2002) examined the role of…

This experiment investigated 12-month-old infants' ability to link an event's beginning to its probable ending. Following Csibra, Biro, Koos, and Gergely (2003), infants were habituated to a simple chasing event involving animated balls, and at test saw 2 possible endings: either 1 ball caught the other or failed to do so. Two controls were added…

The objective of this study is to present "The Spiral Model for the Development of Coordination" (SMDC), a learning model that reflects the complexity and possibilities embodied in the learning of movement notation Eshkol-Wachman (EWMN), an Israeli invention. This model constituted the infrastructure for a comprehensive study that examined the…