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Related Concept Videos

Conservation of Energy00:54

Conservation of Energy

The terms 'conserved quantity' and 'conservation law' have specific scientific meanings in physics, which differ from the meanings associated with their everyday use. For example, in everyday usage, water could be conserved by not using it, by using less of it, or by re-using it. However, in scientific terms, a conserved quantity of a system stays constant, changes by a definite amount that is transferred to other systems, and is converted into other forms of that quantity. In the scientific...
Conservation of Energy: Application01:12

Conservation of Energy: Application

When solving problems using the energy conservation law, the object (system) to be studied should first be identified. Often, in applications of energy conservation, we study more than one body at the same time. Second, identify all forces acting on the object and determine whether each force doing work is conservative. If a non-conservative force (e.g., friction) is doing work, then mechanical energy is not conserved. The system must then be analyzed with non-conservative work. Third, for...
Conservation of Mechanical Energy01:05

Conservation of Mechanical Energy

The mechanical energy E of a system is the sum of its potential energy U and the kinetic energy K of the objects within it. What happens to this mechanical energy when only conservative forces cause energy transfers within the system—that is, when frictional and drag forces do not act on the objects in the system? Also assume that the system is isolated from its environment; in other words no external force from an object outside the system causes energy changes inside the system.
When a...
Conservative Forces01:14

Conservative Forces

According to the law of conservation of energy, any transition between kinetic and potential energy conserves the total energy of the system. Hence, the work done by a conservative force is completely reversible. It is path independent, which means that we can start and stop at any two points in the transition, and the total energy of the system (kinetic plus potential energy at these points) will remain conserved. This is characteristic of a conservative force. Some important examples of...
Conservative Forces01:03

Conservative Forces

Conservative forces are an essential concept in the field of mechanical engineering. Understanding the properties and characteristics of these forces is crucial to the design and analysis of mechanical systems.
Conservative forces are forces that are dependent only on the initial and final positions of an object and that are independent of the path that the object takes between these positions. These forces conserve energy, which means that the work done by the force is independent of the path...
Conservation of Momentum: Introduction01:16

Conservation of Momentum: Introduction

The total momentum of a system consisting of N interacting objects is constant in time or is conserved. A system must meet two requirements for its momentum to be conserved:

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Related Experiment Videos

Conservation through the economics lens.

Joshua Farley1

  • 1Department of Community Development and Applied Economics, University of Vermont, Burlington, VT 05405, USA. Joshua.farley@uvm.edu

Environmental Management
|February 19, 2009
PubMed
Summary

Economics offers valuable insights for conservation by identifying degradation drivers, providing a "when-to-stop" rule for economic growth, and guiding resource allocation. Integrating economic principles enhances transdisciplinary conservation efforts.

Area of Science:

  • Environmental Economics
  • Conservation Science
  • Ecological Economics

Background:

  • Conservation is a complex, transdisciplinary challenge.
  • Environmental degradation is often driven by economic factors.
  • Neoclassical economics offers a limited framework for conservation.

Purpose of the Study:

  • To examine the benefits of applying an economics lens to conservation.
  • To highlight how economic understanding can improve conservation strategies.
  • To advocate for transdisciplinary approaches integrating economics.

Main Methods:

  • Analysis of economic drivers of environmental degradation.
  • Application of economic principles (e.g., marginal benefits/costs) to conservation.
  • Review of resource allocation principles for conservation.

Related Experiment Videos

Main Results:

  • Understanding economic drivers aids in reducing environmental degradation.
  • Economics provides a framework for determining optimal conservation points (when-to-stop growth).
  • Economic principles can guide efficient and just resource allocation for conservation.

Conclusions:

  • An economics lens offers three key benefits for conservation: identifying drivers, establishing conservation thresholds, and optimizing resource allocation.
  • Transdisciplinary approaches, like ecological economics, are crucial for synthesizing insights.
  • Overcoming the limitations of neoclassical economics is vital for effective conservation.