### fusion | body part:

Membrane fusion
* has to occur for endocytosis and exocytosis to be effective.
* is also central to enveloped virus infection of cells.

Cold fusion
* is fusion
  - nuclear reaction
  - one of the hardest things to explain
* is the Holy Grail of energy
  - opposite of nuclear fission, without that messy radioactivity afterwards

Confederation
* are group actions
  - unions
* involves the union of two or more sovereign states.
  - one of the largest providers of adult and children swim programs

Helium fusion
* begins, with a great amount of energy released.
* ceases for lack of fuel.

Jazz fusion
* mixes jazz with rock.
  * mixes jazz with rock. Some jazz fusion also uses funk, rhythm and blues and world music.

### fusion:

Nuclear fusion
* Most nuclear fusion occurs in cores
  - produces energy
* begins instead with atoms of the lightest element, hydrogen, abundant in water.
* does produce radioactive waste.
* gives off a huge amount of heat.
* has the advantage of producing very little radioactive waste or other pollution.
* is also a possible source of energy in the distant future
  - an atomic reaction that fuels stars
  - another method to produce nuclear energy
  - more powerful than chemical reactions such as fire
  - the benign twin of nuclear fission
* is the process of making heavier atoms by combining lighter atoms
  - that makes the sun burn
  - welding together of atomic nuclei
  - what makes stars glow
  - when two atoms merge to form a new one
* means combines atomic nuclei to make a larger nucleus.
* occurs all the time in the interior regions of stars.
  - hydrogen bombs
  - the stars
  - which causes the star to glow
  - within the sun and the stars
* offers the promise of unlimited energy to mankind.
* process during which light atoms fuse to form heavier ones.
* produces a lot of energy
  - electricity without any radiation, pollution, waste, or danger to people
  - energy by combining light atomic nuclei together to make heavier nuclei
  - more energy than nuclear fission
* remains a promising solution of the energy problem
  - out of reach
* requires extremely high temperatures and densities.
* stops at iron
  - with the creation of iron
* takes place at the time of zygote formation, and meiosis follows immediately
  - in a shell around the compressing core
  - when two hydrogen atoms join together to form a larger helium atom
* very powerful source of energy.
+ Brown dwarf: Types of stars
  * Nuclear fusion is what makes stars glow. Brown dwarfs are not massive enough to do this, so they are not regular stars. On the other hand, they are not regular giant planets, because they do glow.
+ Fusion power: Nuclear energy
  * Nuclear fusion is when two atoms merge to form a new one. This reaction generates energy. The idea behind a 'fusion reactor' is to build a power plant that uses this process to produce electricity, in much the same way a nuclear power plant does. Nuclear power plants use nuclear fission to produce energy. It is also the same type of process the Sun uses to generate heat.
+ Hydrogen, Uses of Hydrogen, Hydrogen as fuel (fusion): Nonmetals
  * Nuclear fusion is a very powerful source of energy. It relies on forcing atoms together to make helium and energy, exactly as happens in a star like the Sun, or in a hydrogen bomb. This needs a large amount of energy to get started, and is not easy to do yet. A big advantage over nuclear fission, which is used in nuclear power stations, is that no waste is produced, and no toxic fuel like uranium is needed.
+ Sun, In Astronomy: Stars :: Solar System
  * In the center of the Sun, great heat and pressure combine hydrogen gas into helium gas which produces very large amounts of energy. This is called 'nuclear fusion'. Nuclear fusion is more powerful than chemical reactions such as fire.