Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Electromagnetic Fields01:30

Electromagnetic Fields

2.3K
Electric fields generated by static charges, often referred to as electrostatic fields, are characteristically different from electric fields created by time-varying magnetic fields. While the former is a conservative field, implying that no net work is done on a test charge if it goes around in a complete loop in the field, the latter is, by definition, not a conservative field; net work is done, and it is proportional to the rate of change of magnetic flux.
However, the observation of...
2.3K
Energy Carried By Electromagnetic Waves01:22

Energy Carried By Electromagnetic Waves

3.2K
Anyone who has used a microwave oven knows there is energy in electromagnetic waves. Sometimes, this energy is obvious, such as in the summer sun's warmth. At other times, it is subtle, such as the unfelt energy of gamma rays, which can destroy living cells. Electromagnetic waves bring energy into a system through their electric and magnetic fields. These fields can exert forces and move charges in the system and, thus, do work on them. However, there is energy in an electromagnetic wave,...
3.2K
Energy In A Magnetic Field01:24

Energy In A Magnetic Field

2.4K
If a magnetic field is sustained, there must be a current in a closed circuit or loop, implying some energy has been spent in creating the field. If this energy is not dissipated via the circuit's resistance, it is stored in the field.
Take an ideal inductor with zero resistance. Although it's practically impossible, assume that the coil's resistance is so small that it is practically negligible. The loss of the field's energy to dissipate thermal energy (or heat) is thus...
2.4K
Plane Electromagnetic Waves II01:29

Plane Electromagnetic Waves II

3.7K
Consider a plane wavefront traveling in position x-direction with a constant speed. This wavefront can be utilized to obtain the relationship between electric and magnetic fields with the help of Faraday's law.
3.7K
Dual Nature of Electromagnetic (EM) Radiation01:10

Dual Nature of Electromagnetic (EM) Radiation

2.5K
Electromagnetic (EM) radiation consists of electric and magnetic field components oscillating in planes perpendicular to each other and mutually perpendicular to radiation propagation through space. EM radiation can be classified as a wave, characterized by the properties of waves such as wavelength (denoted as λ) and frequency (represented by ν).
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the...
2.5K
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

4.4K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
4.4K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Direct observations of cross-scale energy transfer driven by multiple-ion interactions in space plasmas.

Nature communications·2025
Same author

Interstellar Mapping And Acceleration Probe: The NASA IMAP Mission.

Space science reviews·2025
Same author

Charged Particle Cross-Field Transport due to Geometric Jumps of Adiabatic Invariant.

Physical review letters·2025
Same author

Detection of ultrafast electron energization by whistler-mode chorus waves in the magnetosphere of Earth.

Scientific reports·2025
Same author

The variable source of the plasma sheet during a geomagnetic storm.

Nature communications·2023
Same author

Energetic Electron Precipitation Driven by Electromagnetic Ion Cyclotron Waves from ELFIN's Low Altitude Perspective.

Space science reviews·2023

Video Experimental Relacionado

Updated: Sep 25, 2025

A 100 KW Class Applied-field Magnetoplasmadynamic Thruster
11:47

A 100 KW Class Applied-field Magnetoplasmadynamic Thruster

Published on: December 22, 2018

9.2K

Conversión de energía electromagnética en frentes de reconexión.

V Angelopoulos1, A Runov, X-Z Zhou

  • 1Department of Earth, Planetary and Space Sciences and Institute of Geophysics and Planetary Physics, University of California Los Angeles, Los Angeles, CA 90095-1567, USA. vassilis@ucla.edu

Science (New York, N.Y.)
|September 28, 2013
PubMed
Resumen
Este resumen es generado por máquina.

Los científicos descubrieron dónde ocurre la conversión de energía en la cola magnética de la Tierra. Este proceso, crucial para las auroras y los cinturones de radiación, ocurre en frentes de flujo magnético, convirtiendo la energía del viento solar en energía de partículas.

Más Videos Relacionados

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

12.8K
Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
11:30

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

Published on: March 6, 2017

11.8K

Videos de Experimentos Relacionados

Last Updated: Sep 25, 2025

A 100 KW Class Applied-field Magnetoplasmadynamic Thruster
11:47

A 100 KW Class Applied-field Magnetoplasmadynamic Thruster

Published on: December 22, 2018

9.2K
Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

12.8K
Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
11:30

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity

Published on: March 6, 2017

11.8K

Área de la Ciencia:

  • Física del espacio Física del espacio
  • Física del plasma es la física del plasma.
  • La geofísica es la geofísica.

Sus antecedentes:

  • La cola magnética de la Tierra almacena la energía del viento solar.
  • La conversión de energía en la cola magnética alimenta las auroras y los cinturones de radiación.
  • La ubicación exacta de esta conversión de energía era previamente desconocida.

Objetivo del estudio:

  • Identificar la ubicación y el mecanismo de conversión de energía electromagnética en la cola magnética de la Tierra.
  • Para entender cómo la energía del viento solar se transforma en energía de partículas.

Principales métodos:

  • Utilizó observaciones coordinadas de ocho naves espaciales.
  • Se analizaron datos de intervalos de actividad geomagnética.
  • Frentes de flujo magnético investigados y corrientes eléctricas asociadas.

Principales resultados:

  • La conversión de energía ocurre dentro de los frentes del flujo magnético recientemente reconectado.
  • Esta conversión ocurre predominantemente en la escala de longitud inercial de 1 a 10 electrones.
  • Las láminas de corriente eléctrica intensa (decenas a cientos de nA/m2) están asociadas con este proceso.
  • Los frentes de flujo de flujo de salida de reconexión convierten aproximadamente de 10 a 100 GW/R_Tierra de potencia.

Conclusiones:

  • El estudio señala los frentes de flujo de flujo de salida de reconexión como los sitios primarios de conversión de energía de cola magnética.
  • Este mecanismo de conversión es consistente con el transporte de flujo magnético local y la reducción de flujo de cola magnética global.
  • Los hallazgos aclaran un proceso clave que impulsa los fenómenos meteorológicos espaciales.