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.
On the flip side, the bottom 50% who earn 12.75% of total earnings only pay 2.7% in total taxes. But, as we learned above, most of the bottom 50% are elderly or poor. Just how protesters wrongly group together the top 1%, who make over $380,000 with the ultra rich, who make millions of dollars a year, is baffling.ith an average per capita income of ~$48,000, America ranks in the Top 10 in the world. The other nine include Qatar ($88,300), Luxembourg ($80,000), Singapore ($57,230), Norway ($52,230), Brunei ($47,500), Hong Kong ($45,000), Switzerland ($41,800), Netherlands ($40,800), Australia ($39,632), and Austria ($39,100).