Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Energy Conservation and Bernoulli's Equation

Energy Conservation and Bernoulli's Equation

Applying the conservation of energy principle or the work-energy theorem to an incompressible, inviscid fluid in laminar, steady, irrotational flow leads to Bernoulli's equation. It states that the sum of the fluid pressure, potential, and kinetic energy per unit volume is constant along a streamline.
All the terms in the equation have the dimension of energy per unit volume. The kinetic energy per unit volume is called the kinetic energy density, and the potential energy per unit volume is...

Energy Basics

Energy Basics

Chemical reactions, such as those that occur when you light a match, involve changes in energy as well as matter.

What is Energy?

What is Energy?

The universe is composed of matter in different forms, and all forms of matter contain energy. The different forms of energy on Earth originate from the Sun — the ultimate energy source. Plants capture light energy from the Sun, and, via the process of photosynthesis, convert it into chemical energy. This stored energy from plants can be harnessed in many ways. For example, eating plant products as food provides energy for our body to function, and burning wood or coal (fossilized plants)...

Conservation of Energy: Application

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...

Energy Budgets and Reproductive Strategies

Energy Budgets and Reproductive Strategies

Organisms must balance energy intake with the energy required for growth, maintenance, and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species reproduce only once in their lifetime, often investing most available resources into that single reproductive event. Iteroparous species, by contrast, reproduce multiple times over their lifetimes, typically allocating fewer resources to any single...

Conservation of Energy

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Virions and respiratory droplets in air: Diffusion, drift, and contact with the epithelium.

Bio Systems·2020

Same author

[Nanotechnology can improve diagnostics].

Lakartidningen·2017

Same author

Nanofabricated Catalyst Particles for the Investigation of Catalytic Carbon Oxidation by Oxygen Spillover.

Langmuir : the ACS journal of surfaces and colloids·2017

Same author

Reusable hydroxyapatite nanocrystal sensors for protein adsorption.

Science and technology of advanced materials·2016

Same author

Influence of Divalent Cations on Deformation and Rupture of Adsorbed Lipid Vesicles.

Langmuir : the ACS journal of surfaces and colloids·2016

Same author

Graphene Oxide and Lipid Membranes: Size-Dependent Interactions.

Langmuir : the ACS journal of surfaces and colloids·2016

Same journal

Meadows, memories, and missing layers: Transdisciplinary seagrass mapping towards restorative marine spatial planning.

Ambio·2026

Same journal

Brazil's science-policy effort to monitor native vegetation restoration.

Ambio·2026

Same journal

Greening the military: A systematic review of sustainability implementation and strategic implications.

Ambio·2026

Same journal

Stratigraphic evidence of organic carbon depletion in an intensely trawled muddy seabed.

Ambio·2026

Same journal

Subjective energy poverty and attitudes on climate change mitigation measures: Empirical and ethical considerations.

Ambio·2026

Same journal

Publisher Correction: Key underwater habitat types of the northern Baltic Sea: An assessment of biodiversity and ecosystem functions.

Ambio·2026

See all related articles

Search research articles

Related Experiment Videos

Panel discussion on energy efficiency.

Brian Heap¹, Bengt Kasemo

¹European Academies Science Advisory Board, University of Cambridge, UK. rbh22@cam.ac.uk

|September 30, 2010

Summary

This summary is machine-generated.

Implementing energy efficiency and saving measures is key for a sustainable energy system. These strategies, especially in transport and agriculture, offer significant potential across all governance levels.

Related Experiment Videos

Area of Science:

Energy Policy
Sustainable Development
Environmental Science

Background:

The session focused on energy efficiency as a critical component of sustainable energy systems.
A panel discussion involving four experts explored various facets of energy efficiency implementation.

Purpose of the Study:

To identify the most effective short-term measures for contributing to a sustainable energy system.
To explore strategies for improving and encouraging energy efficiency at multiple governance levels.
To discuss the potential of different sectors, such as transport and agriculture, for energy efficiency gains.

Main Methods:

The study was based on a panel discussion format, synthesizing expert opinions and insights.
Analysis of energy consumption patterns and potential savings in key sectors.
Discussion of policy instruments, including pricing and systemic measures.

Main Results:

Short-term energy efficiency and saving measures are the most effective immediate contribution to sustainability.
The transport sector shows the largest near-future potential for increased energy efficiency.
Agriculture and food sectors also present significant energy consumption and efficiency improvement opportunities.
Energy audits for end-users can increase awareness and promote energy-saving actions.
While Jevons paradox is a concern, many examples demonstrate that efficiency gains do not necessarily lead to increased overall consumption.

Conclusions:

Energy efficiency measures should be implemented at municipal, national, and super-national levels.
Pricing mechanisms are effective but require integration with broader systemic measures.
Improving energy efficiency presents market and societal opportunities beyond mere constraints and regulations.
Addressing global population dynamics is a complex but relevant factor in energy system planning.