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Related Concept Videos

Light as Energy01:35

Light as Energy

The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit less...
Electric Flux01:15

Electric Flux

The concept of flux describes how much of something goes through a given area. More formally, it is the dot product of a vector field within an area. For a better understanding, consider an open rectangular surface with a small area that is placed in a uniform electric field. The larger the area, the more field lines go through it and, hence, the greater the flux; similarly, the stronger the electric field (represented by a greater density of lines), the greater the flux. On the other hand, if...
Magnetic Flux01:18

Magnetic Flux

The magnetic flux measures the number of magnetic field lines passing through a given surface area. The SI unit for magnetic flux is the weber (Wb). Magnetic flux is a scalar quantity. It depends on three factors: the strength of the magnetic field B, the area through which the field lines pass, and the relative orientation of the field with the surface area.
Suppose a surface is divided into elements of area dA. For each element, the component of the magnetic field that is normal to the...
Flame Photometry: Overview01:02

Flame Photometry: Overview

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...
Flame Photometry: Lab01:16

Flame Photometry: Lab

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...
P-N junction01:11

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...

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Related Experiment Video

Updated: May 11, 2026

In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for Cu(In,Ga)Se2 Solar Cells
09:19

In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for Cu(In,Ga)Se2 Solar Cells

Published on: October 3, 2018

Solar flair.

John S Manuel

    Environmental Health Perspectives
    |February 8, 2003
    PubMed
    Summary
    This summary is machine-generated.

    Solar energy adoption is rising for homes and institutions, driven by design advances and incentives. Daylighting in classrooms and photovoltaic systems are key trends, highlighted by the U.S. Department of Energy

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    Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics
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    Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
    14:57

    Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

    Published on: January 30, 2019

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    Last Updated: May 11, 2026

    In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for Cu(In,Ga)Se2 Solar Cells
    09:19

    In Situ Monitoring of the Accelerated Performance Degradation of Solar Cells and Modules: A Case Study for Cu(In,Ga)Se2 Solar Cells

    Published on: October 3, 2018

    Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics
    09:00

    Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass (ADG) Fresnel Lens for Concentrating Photovoltaics

    Published on: October 27, 2017

    Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
    14:57

    Structural Design and Manufacturing of a Cruiser Class Solar Vehicle

    Published on: January 30, 2019

    Area of Science:

    • Renewable Energy Systems
    • Sustainable Building Design
    • Educational Facility Innovation

    Background:

    • Increasing interest in solar energy solutions for residential and institutional applications.
    • Government incentives and design innovations are key drivers for solar adoption.
    • Passive solar design, specifically daylighting, shows promise for improving student performance in educational settings.

    Discussion:

    • Photovoltaic (PV) systems are gaining traction, particularly in regions with high electricity costs and grid instability.
    • The U.S. Department of Energy's Solar Decathlon showcases advancements in solar-powered home design.
    • The event promotes awareness and adoption of solar technologies among future professionals and the public.

    Key Insights:

    • Daylighting in classrooms is linked to enhanced student performance, making it attractive for school districts.
    • Photovoltaic systems offer a viable energy solution, especially in areas like California with high electricity rates.
    • Collaborative events like the Solar Decathlon accelerate the dissemination of solar energy knowledge and technology.

    Outlook:

    • Continued growth in solar energy adoption is expected due to ongoing technological advancements and supportive policies.
    • Further research into the benefits of daylighting and integration of photovoltaic systems in educational facilities is warranted.
    • The success of initiatives like the Solar Decathlon suggests a positive future for solar energy innovation and implementation.