A new list of the most common words and phrases in the English language in 2013 was overwhelmingly negative. 404 â as in the error message that appears when a web page can't load â and toxic politics both earned top spots, with surveillance, drones and federal shutdown also appearing on the list, from Global Language Monitor.
3. 5 The Internal combustion engine (Otto Cycle) [vw, s & b: 9.13] The Otto cycle is a set of processes used by spark ignition internal combustion engines (2-stroke or 4-stroke cycles).
Does a Hole in the Heart Cause Strokes? Around 800,000 people a year in the US have a stroke, and of those, almost 200,000 are repeat strokes. Up to 40% of these strokes do not have a clear cause, and these are known as cryptogenic strokes. So what does PFO have to do with strokes? A PFO allows blood to go from the right side of the heart to the left.