Beta-plus (Î² +) radiation is the emission of positrons, which are the antimatter form of electrons. When a positron slows to speeds similar to those of electrons in the material, the positron will annihilate an electron, releasing two gamma photons of 511 keV in the process.
The Congressional Budget Office puts the cut-off lower, at $347,000 in 2007, or $252,000 after subtracting federal taxes and adding back transfers. Measured by net worth, rather than income, the top 1% started at $6.9m in 2009, according to the Federal Reserve, down 23% from 2007.
What is the average US income and other income figures. Fiscal cliff talks only useful in context of incomes. Only 20.8% of Americans have a household income of $100,000 or more. And since this is household income that often comes from 2 salaries. 50 percent of US wage earners made less than or equal to the median wage, estimate to be $26,965. 66 percent of US wage earners made less than or equal to $41,211.36.