Fission Fusion
Fission Fusion - Related Videos
02:50
Nuclear Fission
0 Views •
2020
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...
06:14
Assessment of Mitochondrial Fission/Fusion Dynamics in Kidney Proximal Tubular Cells
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2025
This article describes the use of confocal microscopy and ImageJ to assess mitochondrial fission/fusion dynamics via Dendra2 photo-switching fluorescence.
07:47
Microscopy of Fission Yeast Sexual Lifecycle
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Cited by 38 •
2016
We provide a reproducible basic method for the long-term microscopy of the fission yeast sexual lifecycle. With minor adjustments described, the presented protocol allows research focus on different steps of the reproductive process.
02:45
Nuclear Fusion
0 Views •
2020
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...
11:19
Spatiotemporal Analysis of Cytokinetic Events in Fission Yeast
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Cited by 6 •
2017
The fission yeast, Schizosaccharomyces pombe is an excellent model system to study cytokinesis, the final stage in cell division. Here we describe a microscopy approach to analyze different cytokinetic events in live fission yeast cells.
FAQs
In fission, absorption of a neutron can cause a heavy nucleus to split and release additional neutrons. Those newly produced neutrons may be absorbed by other nuclei, allowing the sequence to continue as a chain reaction. This behavior is central to understanding how nuclear energy systems are analyzed and how reactor design relates to nuclear chemistry.
Light nuclei carry positive charge, so they repel one another as they approach. Fusion requires extreme temperature and pressure to help overcome this electrostatic barrier. Once the nuclei come sufficiently close, the strong nuclear force can bind them. These competing forces explain why fusion depends on substantially different conditions from those associated with fission.
Both processes change nuclear composition, so they help scientists examine how isotopes and elements can be transformed. Their products and resulting nuclei provide context for understanding isotope formation and radioactive decay pathways. In chemistry, this nuclear perspective extends analysis beyond molecular changes to the stability and behavior of atomic nuclei.
Fission can develop a chain reaction because neutron absorption may produce further neutrons, whereas fusion depends on creating conditions that bring positively charged light nuclei close enough for binding. This contrast links the two energy-releasing processes to different controlling factors: neutron multiplication for fission and extreme temperature and pressure for fusion.
Reactor design depends on understanding the nuclear behavior that controls energy release. For fission, the possibility of a neutron-sustained chain reaction is a central consideration. Fusion research instead focuses on the extreme temperature and pressure needed for nuclei to overcome electrostatic repulsion. These principles provide the scientific basis for comparing nuclear energy systems.
Fission and fusion provide a framework for interpreting changes in isotopes and elemental composition, which is important in radiochemical analysis. Their connection to isotope formation and radioactive decay pathways also supports nuclear medicine. In both areas, understanding nuclear transformations helps relate observed radioactive behavior to changes occurring within atomic nuclei.
Fission and fusion release substantial energy through changes in atomic nuclei, making both relevant to investigations of lower-carbon energy systems. Their scientific comparison clarifies different routes to energy generation: fission can involve a neutron-supported chain reaction, while fusion requires extreme conditions for light nuclei to bind. This distinction guides ongoing research and evaluation.