In fact, it has only been rising. And while the average cost of a jewelry store diamond engagement ring has been rising to now upwards of $5,800 to $6,000 in 2015, so has the median age of first marriage and as a result, the financial security of the potential purchasers.
Unlike relative humidity, dew point measurement is independent of temperature. However, when measuring dew point, pressure conditions must be taken into account. Beware of Temperature Differences When mounting a humidity probe into a process, avoid temperature drops along the probe body.
1 Relative humidity is a measure of the amount of water in the air compared with the amount of water the air can hold at the temperature it happens to be when you measure it. First, the warmer air is, the more water vapor it can hold.. 2  Dew point is a measure of how much water vapor is actually in the air. 3  Relative humidity is a measure of the amount of water in the air compared with the amount of water the air can hold at the temperature it happens to be when you measure it.