Related Experiment Video
Updated: Mar 17, 2026
13:59
Reduced-gravity Environment Hardware Demonstrations of a Prototype Miniaturized Flow Cytometer and Companion Microfluidic Mixing Technology
Published on: November 13, 2014
14.2K
Freestyle Skiing: From 'Hotdogging' to Olympic Demonstration Event.
The Physician and Sportsmedicine
|July 15, 2016
Summary
Freestyle skiing evolved from dangerous aerials to a safer, certified sport. It debuted as a demonstration event at the 1988 Calgary Winter Olympics.
Area of Science:
- Sports Science
- Biomechanics
- Athletic Training
Background:
- Freestyle skiing historically involved high-risk aerial maneuvers.
- Significant advancements in training protocols and safety measures have occurred.
- The sport's evolution led to its inclusion in major athletic events.
Purpose of the Study:
- To document the transformation of freestyle skiing.
- To highlight changes in safety and certification standards.
- To contextualize its 1988 Olympic demonstration status.
Main Methods:
- Historical analysis of training methodologies.
- Review of safety regulations and certification processes.
- Examination of the sport's progression towards Olympic inclusion.
Main Results:
- Freestyle skiing has become a more structured and safer discipline.
- Standardized training and certification have reduced inherent risks.
- The sport gained recognition, leading to its Olympic demonstration.
Conclusions:
- The evolution of freestyle skiing showcases a successful integration of safety and performance.
- Changes in training and certification have made the sport more accessible and professional.
- Olympic inclusion marked a significant milestone in freestyle skiing's development.
Related Concept Videos
01:11Work Done Over an Inclined Plane
4.1K
The center-of-mass framework helps to easily describe the work done on rigid bodies. Since the internal forces in a rigid body do no work, they can be ignored, and the external forces can be considered in the work-energy theorem.
The work done by gravity to move a rigid body, or the work done by an opposing force to move a rigid body against gravity, can be calculated using the center-of-mass framework. It is the line integral of the force of gravity over the path, considered positive if...
The work done by gravity to move a rigid body, or the work done by an opposing force to move a rigid body against gravity, can be calculated using the center-of-mass framework. It is the line integral of the force of gravity over the path, considered positive if...
4.1K
01:07Free Body Diagrams: Examples
15.8K
Solving problems that involve forces is easy using free-body diagrams. A free-body diagram is a sketch showing all the external forces that are acting on an object or system. The object or system is represented by a single isolated point (or free body). Only those forces acting on it that originate outside of the object or system—the external forces—are shown. The forces are represented by vectors extending outward from the free body. Imagine a person sitting on a chair. Here, the...
15.8K
01:20Elevation of Intermediate Points on Vertical Curves
333
Vertical curves are essential in roadway design because they provide smooth transitions between varying roadway grades. Designing vertical curves involves calculating intermediate elevations and identifying the curve's highest or lowest point, which is essential for optimal roadway performance.Intermediate elevations on a vertical curve are determined using the tangent offset method. This method considers the initial elevation at the start of the curve, the grades, and the curve's geometry. The...
333
01:14Energy Diagrams - I
5.8K
The dynamics of a mechanical system can be easily understood by interpreting a potential energy diagram. Since energy is a scalar quantity, the interpretation of the dynamics of the system becomes even simpler.
Take the example of a skater on a parabolic ramp. The potential energy at different points along the ramp will be proportional to the height of the ramp, which varies quadratically with the horizontal position on the ramp. As the skater moves down the ramp from the highest position,...
Take the example of a skater on a parabolic ramp. The potential energy at different points along the ramp will be proportional to the height of the ramp, which varies quadratically with the horizontal position on the ramp. As the skater moves down the ramp from the highest position,...
5.8K
01:10Energy Diagrams - II
14.1K
Energy diagrams are important to understand the dynamics of a system. The topology of an energy diagram helps illustrate the equilibrium points of the system.
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
The point in the energy diagram at which the system’s potential energy is the lowest is known as the local minima. The system tends to stay in this position indefinitely unless acted upon by a net force. The slope of the potential energy diagram at the local minima is zero, indicating that zero net force is acting on the system. The...
14.1K
01:09Rolling Without Slipping
5.6K
People have observed the rolling motion without slipping ever since the invention of the wheel. For example, one can look at the interaction between a car's tires and the surface of the road. If the driver presses the accelerator to the floor so that the tires spin without the car moving forward, there must be kinetic friction between the wheels and the road's surface. If the driver slowly presses the accelerator, causing the car to move forward, the tires roll without slipping. It is...
5.6K