This screencast, we see how the shape of a stain defines the angle of impact. In general terms the more circular the stain, the more perpendicular will be the angle at which it struck the surface. The more elliptical the shape of the stain, the more acute the angle will be. With practice and experience, the analyst can recognize the general angle of impact based solely on the shape of the stain.

In this learning object the student will learn how to measure a stain and calculate angles of impact. Determining the angle of impact for bloodstains takes advantage of the trigonometric functions (Sine function).

A mathematical relationship exists between the width and length of an elliptical bloodstain which allows for the calculation of the angle of the impact for the original spherical drop of blood.

Given well formed stains we can accurately measure the width and length by simply dividing the stain along it’s major and minor axis. The opposite halves would be generally equal to each other which aids in establishing the impact angle.

In this screencast, the student will learn that regardless of the surface onto which a blood droplet is falling, the angle or velocity at which it does so, or the volume of the droplet, there are four distinct phases involved in the reaction of a moving droplet with impact against a surface.

Temp version with colors adjusted for Section 508 compliance

In this animated object, learners examine what happens to lead and cycle times when the batch size is reduced.

Learners examine radial and concentric fractures in glass to determine the sequence of the impacts.

In this learning activity you'll relate statistics on aging in America to the functions and dysfunctions created by these demographic changes.

In this learning activity you'll analyze the impact of various factors in their lives. They are then transformed by a new identity. They analyze the potential impact of this new identity and compare it to their initial lives.

In this learning activity, we’ll explore the impact of electric shock on the human body.

In this learning activity you'll reflect on possible behavior choices and their impact on communication.

In this learning activity you'll calculate exchange rates to determine the impact of prices of exports and imports.

Chytrids, as members of this group are known, are found everywhere. In this animated learning object, students examine the role of chytrids and their impact on the environment.

This learning object offers a brief summary of the impact of nanotechnology on automobile tires. Learners look at the future of cars, especially the safety and future of automobile tires.

Imagine you're a college student volunteering in a lab that includes animal research and you're trying to decide if this would be a good experience. Play through this module to understand the regulations for animal well-being and how they impact animal welfare. Prove you're an Animal Welfare Whiz!

In this learning activity, learners will reflect on the meaning and impact of stereotypes in both personal relationships and work environments. Identifying behaviors, attitudes, and feelings associated with stereotypes are addressed in this activity.

In this interactive learning activity, learners explore factors that contribute to the aging process. Learners calculate their age based on biological, psychological, and social experiences. Further reflection allows the learner to consider options and assess issues that impact the aging process.

In manufacturing, controlling the production process is critical. Part of this control is knowing when to make adjustments and when to let the line run. Step onto the production line in our manufacturing plant and learn what process variation is and how it impacts your bottom line.

In this learning activity you'll be introduced to the communication model and how it impacts your work as an IT professional.

Visualizes direction and amount of glass particles travel when impacted by a force.

Visualizes direction and quantity of glass particles as the glass is impacted by a force.