The left jacket lapel of a custom suit jacket or sport coat today, more often than not, has what looks like a large buttonhole near the top of the lapel, below the collar. What confuses fashion neophytes is the lack of a button on the opposing lapel, even on the rear side.
The Beaufort scale is a scale for measuring wind speeds. It is based on observation rather than accurate measurement. It is the most widely used system to measure wind speed today. The scale was developed in 1805 by Sir Francis Beaufort.There are twelve levels, plus 0 for no wind. From 1946 to 1970, there were also beaufort levels 13 to 17.he Beaufort scale is a scale for measuring wind speeds. It is based on observation rather than accurate measurement. It is the most widely used system to measure wind speed today. The scale was developed in 1805 by Sir Francis Beaufort.
Wind speed on the 1946 Beaufort scale is based on the empirical relationship: v = 0.836 B 3/2 m/s Where v is the equivalent wind speed at 10 metres above the sea surface and B is Beaufort scale number. For example, B = 9.5 is related to 24.5 m/s which is equal to the lower limit of 10 Beaufort. Using this formula the highest winds in hurricanes would be 23 in the scale.