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Related Concept Videos

Nuclear Power02:36

Nuclear Power

Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
Nuclear Fission02:50

Nuclear Fission

Many heavier elements with smaller binding energies per nucleon can decompose into more stable elements that have intermediate mass numbers and larger binding energies per nucleon—that is, mass numbers and binding energies per nucleon that are closer to the “peak” of the binding energy graph near 56. Sometimes neutrons are also produced. This decomposition of a large nucleus into smaller pieces is called fission. The breaking is rather random with the formation of a large number of different...
Biofuels01:25

Biofuels

The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
Nuclear Transmutation03:20

Nuclear Transmutation

Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed protons being...
Microbial Bioremediation of Uranium01:25

Microbial Bioremediation of Uranium

Microorganisms play a critical role in the transformation and immobilization of uranium in contaminated environments through four main pathways: bioreduction, biosorption, bioaccumulation, and biomineralization. These mechanisms reduce uranium’s toxicity and prevent its migration through groundwater systems, offering sustainable approaches for in situ bioremediation.Bioreduction of UraniumBioreduction is driven by anaerobic bacteria such as certain strains of Geobacter and Shewanella, which use...
Nuclear Fusion02:45

Nuclear Fusion

The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...

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Related Experiment Video

Updated: Jul 12, 2026

Non-radioactive in situ Hybridization Protocol Applicable for Norway Spruce and a Range of Plant Species
11:56

Non-radioactive in situ Hybridization Protocol Applicable for Norway Spruce and a Range of Plant Species

Published on: April 17, 2009

Sweden beyond oil: nuclear commitments and solar options.

M Lönnroth, T B Johansson, P Steen

    Science (New York, N.Y.)
    |May 9, 1980
    PubMed
    Summary

    This study explores nuclear and renewable energy as alternatives to imported oil in Sweden. It identifies key policy characteristics for maintaining both options amid current uncertainties.

    Area of Science:

    • Energy policy
    • Futures studies
    • Comparative energy systems analysis

    Background:

    • Sweden's reliance on imported oil necessitates exploring alternative energy sources.
    • Nuclear and renewable energy present viable but uncertain alternatives for future energy needs.
    • The "Energy and Society" project addresses these uncertainties within the Swedish context.

    Purpose of the Study:

    • To identify characteristics of an energy policy that keeps both nuclear and renewable energy options open for Sweden's future.
    • To analyze the technical, economic, and institutional aspects of nuclear and solar energy systems.
    • To inform strategic energy planning by understanding the similarities and differences between these alternatives.

    Main Methods:

    • Outlining a nuclear energy system for analysis.

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    Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment
    11:38

    Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

    Published on: December 3, 2019

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    Last Updated: Jul 12, 2026

    Non-radioactive in situ Hybridization Protocol Applicable for Norway Spruce and a Range of Plant Species
    11:56

    Non-radioactive in situ Hybridization Protocol Applicable for Norway Spruce and a Range of Plant Species

    Published on: April 17, 2009

    Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment
    11:38

    Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment

    Published on: December 3, 2019

  • Developing a solar energy system model for comparative study.
  • Conducting a technical, economic, and institutional assessment of both outlined systems.
  • Main Results:

    • Key characteristics for a flexible, long-term energy policy have been identified.
    • A comparative analysis framework for nuclear and solar energy systems was established.
    • Technical, economic, and institutional factors influencing the adoption of these alternatives were examined.

    Conclusions:

    • A forward-looking energy policy must accommodate uncertainties associated with both nuclear and renewable energy.
    • Understanding the distinct and shared attributes of these energy sources is crucial for effective policy development.
    • Further analysis of technical, economic, and institutional factors is essential for informed decision-making on Sweden's energy future.