The adult massasauga, also known as the swamp rattler, is a stout-bodied snake with a broad head. It measures 18-40 inches (45-100 cm) in length. Average length is 27.5 inches (70 cm).assasauga rattlesnakes range from central New York and southern Ontario west to the prairies of Iowa and Missouri. The eastern massasauga is strongly associated with wetlands across most of its range. Wet prairie is the preferred habitat in the west, bogs and swamps in the east.
Zeptometer is a length measurement unit. A zeptometer (zm) is a derived metric measurement unit of length. The metric unit prefix zepto means one sextillionth, or one (1) with twenty (20) nulls in front of it, i.e. 0.000,000,000,000,000,000,001 or 1Ã10 -21. That makes one zeptometer equal to one sextillionth of a meter.
A sling psychrometer is a common instrument used by meteorologists to determine the relative humidity. This instrument is swung around while being held. There are also a variety of other humidity sensors which work automatically to measure the water content and relative humidity of the atmosphere. wind vane is used as part of the anemometer to determine the wind's direction. As the wind flows over the windmill, the speed and direction of the wind can be measured with this instrument. Some scientific anemometers use the speed of sound to measure the wind speed more precisely in three dimensions.