Raph likes to guilt-trip me about not helping him with his homework.  Like I should grade his lab reports and what not after having cleaned the house, done the laundry, cooked dinner and taken care of Makili all day.  But occasionally I give in and try to help.  Last weekend he wanted help writing questions for his final.  He told me I could either read and article about the sun or paintball, and then I'd have to write questions.  I don't care too much for paintball, so I chose the sun.  It was the most annoying article ever and I quit on the second page after reading this paragraph about the nuclear fusion that takes place in the core of the sun:
The fusion cycle beings when two protons, or hydrogen nuclei collide to form a nucleus of deuterium (2H).  This fusion is accompanied by the conversion of a minute amount of mass into energy -  a lot of energy.  In fact, it is enough energy to cause one of the protons to be converted into a neutron, releasing energy in the form of a positron (*) and a neutrino (v).  The positron annhiliates an electron, and two gamma rays (y) are created (this is omitted from the figure for clarity).  The deuterium combines with another proton, forming a helium-3 nuceus (3He), releasing a gamma ray in the process.  Then two 3He nuclei fuse together to form a normal helium nucleus (4He), ejecting two protons, which start the process over again.
Seriously!  He makes his poor students read this garbage.  Come on.   You're a positron.
 
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