This article contributes to recent efforts to add life and movement to rhetorical studies by focusing on the representation of movement in medical texts. More specifically, this study examines medical texts, illustrations, and photographs involving movement by Johann Casper Lavater, G. B. Duchenne de Bologne, Charles Darwin, and Etienne-Jules…

We report asymmetrical cortical responses (steady-state visual evoked potentials) to radial expansion and contraction in human infants and adults. Forty-four infants (22 3-month-olds and 22 4-month-olds) and nine adults viewed dynamic dot patterns which cyclically (2.1 Hz) alternate between radial expansion (or contraction) and random directional…

Video analysis of motion has been in use now for some time. However, some teachers may not have video equipment or may be looking for innovative ways to engage students with interesting applications at no cost. The recent advent of YouTube offers opportunities for students to measure kinematic properties of real-life events using their computers.…

Evidence exists that children's understanding can be facilitated through collaborative group work with peers, but little is known about the underlying processes. When processes are discussed, they are typically assumed to involve the assimilation of superior ideas that are constructed jointly. However, the assimilation of joint constructions…

When data with and without an optically active sample are acquired simultaneously while one manually rotates the analyser, the graph of the first signal versus the second one is an ellipse whose shape shows the phase shift between the two signals; this shift is twice the optical rotation. There is no need to measure the rotation of the analyser or…

A common example of real-world motion that can be modeled by a differential equation, and one easily understood by the student, is the simple pendulum. Simplifying assumptions are necessary for closed-form solutions to exist, and frequently there is little discussion of the impact if those assumptions are not met. This article presents a…

Aim: The aim of this study was to determine the effects of early childhood stunting (height for age 2SD or more below reference values) and interventions on fine motor abilities at 11 to 12 years, and the relationship between fine motor abilities and school achievement and intelligence. Method: A cohort of stunted children who had participated in…

Background: The emergence of a participatory culture, brought about mainly by the use of Web2.0 technology, is challenging us to reconsider aspects of teaching and learning. Adapting the learning-as-digital-game-building approach, this paper explores how new educational practices can help students build skills for the 21st century. Purpose: This…

We analyse the two-dimensional motions of the rockets for various types of rocket thrusts, the air friction and the gravitation by using a suitable representation of the rocket equation and the numerical calculation. The slope shapes of the rocket trajectories are discussed for the three types of rocket engines. Unlike the projectile motions, the…

For the case of objects thrown from an elevated position, students tend to believe an object thrown at an upward angle will always land farther away than one thrown horizontally at the same speed. That this is not always the case comes as a great surprise to many. By analysing the situation of a horizontally-thrown object outdistancing one thrown…

Numerous reports of elevated global motion thresholds across a variety of neurodevelopmental disorders have prompted researchers to suggest that abnormalities in global motion perception are a result of a general deficiency in the dorsal visual pathway. To test this hypothesis, we assessed the integrity of the dorsal visual pathway at lower…

A whiplash event is a relative motion between the head and torso that occurs in rear-end automobile collisions. In particular, the large inertia of the head results in a horizontal translation relative to the thorax. This paper describes a simulation of the motion of the head and neck during a rear-end (whiplash) collision. A head-neck model that…

In this age of the microcomputer-based lab (MBL), students are quite accustomed to looking at graphs of position, velocity, and acceleration versus time. A number of textbooks argue convincingly that the slope of the velocity graph gives the acceleration, the area under the velocity graph yields the displacement, and the area under the…

Recommendations for the teaching and performance of grand rond de jambe en l'air are presented. Incorporating both quantitative and qualitative data, information generated from biomechanic analysis is balanced with observation of the testing and questionnaire and interview data. The voices of the participants in the research contribute to an…

The typical elementary-school explanation of the difference between mass and weight goes something like the following: Mass is the amount of matter contained in an object. If you travel to the Moon, another planet, or anywhere far away from Earth, your mass doesn't change. Weight is how hard Earth pulls on you. When you travel to the Moon or…