Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Atomic Fluorescence Spectroscopy01:29

Atomic Fluorescence Spectroscopy

1.1K
Atomic fluorescence spectroscopy (AFS) is an analytical technique that involves the electronic transitions of atoms in a flame, furnace, or plasma being excited by electromagnetic (EM) radiation. When these atoms absorb energy, they become excited and subsequently release energy as they return to their original state. This emitted light, or "fluorescence," is observed at a right angle to the incident beam. Both absorption and emission processes transpire at distinct wavelengths, which...
1.1K
Flame Photometry: Overview01:02

Flame Photometry: Overview

1.8K
Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
1.8K
Flame Photometry: Lab01:16

Flame Photometry: Lab

1.2K
In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...
1.2K
Total Internal Reflection Fluorescence Microscopy01:05

Total Internal Reflection Fluorescence Microscopy

13.7K
Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
13.7K
Reflection of Waves01:07

Reflection of Waves

4.8K
When a wave travels from one medium to another, it gets reflected at the boundary of the second medium. A common example of this is when a person yells at a distance from a cliff and hears the echo of their voice. The sound waves (longitudinal waves) traveling in the air are reflected from the bounding cliff. Similarly, flipping one end of a string whose other end is tied to a wall causes a pulse (transverse wave) to travel through the string, which gets reflected upon reaching the wall. In...
4.8K
Precipitation Reactions03:10

Precipitation Reactions

67.9K
In a precipitation reaction, aqueous solutions of soluble salts react to give an insoluble ionic compound – the precipitate. The reaction occurs when oppositely charged ions in solution overcome their attraction for water and bind to each other, forming a precipitate that separates out from the solution. Since such reactions involve the exchange of ions between ionic compounds in aqueous solution, they are also referred to as double displacement, double replacement, exchange reactions, or...
67.9K

You might also read

Related Articles

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

Sort by
Same author

Neutral and ionized hydrides in star-forming regions. Observations with Herschel/HIFI.

The journal of physical chemistry. A·2013
See all related articles

Related Experiment Video

Updated: Mar 21, 2026

Test Samples for Optimizing STORM Super-Resolution Microscopy
16:52

Test Samples for Optimizing STORM Super-Resolution Microscopy

Published on: September 6, 2013

31.7K

Flare Observations.

Arnold O Benz1

  • 1Institute of Astronomy, ETH, CH-8092 Zurich, Switzerland.

Living Reviews in Solar Physics
|May 20, 2016
PubMed
Summary
This summary is machine-generated.

Recent solar flare observations reveal surprising details about energy release and particle acceleration. Despite advances, the exact mechanisms converting energy into non-thermal particles during solar flares remain a key area of research.

More Related Videos

Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs
07:51

Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs

Published on: August 27, 2019

7.4K
Observation and Analysis of Blinking Surface-enhanced Raman Scattering
05:52

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Published on: January 11, 2018

7.8K

Related Experiment Videos

Last Updated: Mar 21, 2026

Test Samples for Optimizing STORM Super-Resolution Microscopy
16:52

Test Samples for Optimizing STORM Super-Resolution Microscopy

Published on: September 6, 2013

31.7K
Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs
07:51

Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs

Published on: August 27, 2019

7.4K
Observation and Analysis of Blinking Surface-enhanced Raman Scattering
05:52

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Published on: January 11, 2018

7.8K

Area of Science:

  • Solar physics
  • Astrophysics
  • Plasma physics

Background:

  • Solar flares are energetic phenomena observed across the electromagnetic spectrum.
  • Recent advancements in space missions (RHESSI, Yohkoh, TRACE, SOHO) have provided unprecedented observational data.
  • Understanding solar flares is crucial for space weather prediction and understanding coronal dynamics.

Approach:

  • Review of recent observational data in EUV, X-rays, white light, and radio waves.
  • Integration of observational findings with theoretical models.
  • Analysis of energy partition, release sites, and particle acceleration mechanisms.

Key Points:

  • Coronal sources precede hard X-ray emission; major acceleration sites may be independent of Coronal Mass Ejections (CMEs).
  • Electrons and ions might be accelerated at different locations, with at least three distinct magnetic topologies observed.
  • Flare characteristics vary significantly between small and large events, challenging unified models.

Conclusions:

  • Magnetic reconnection is the widely accepted trigger for solar flares, but the conversion of energy into non-thermal particles remains debated.
  • Flare processes contribute to coronal magnetic field restructuring and heating.
  • Solar flares continue to present complex challenges and unsolved questions in astrophysics despite extensive study.