A breathalyzer or breathalyser (a portmanteau of breath and analyzer/analyser) is a device for estimating blood alcohol content (BAC) from a breath sample. Breathalyzer is the brand name for the instrument that tests the alcohol level developed by inventor Robert Frank Borkenstein. It was registered as a trademark on May 13, 1954, but many people use the term to refer to any generic device for estimating blood alcohol content.
The deadline to file your federal taxes is coming up, and this year Americans will spend more than 7 billion hours preparing their taxes and will hand over more than four trillion dollars to federal, state and local governments.
1 About 20 million people filed their tax returns from their home computers last year. 2  It has become increasingly popular, and then you wait for a paper check. 3  If you file electronically right now but wait for the paper refund check, you get that by the end of February, about three weeks.