Q: What is the difference between relative humidity and the dew point? —Rick Brewer, Smyrna
A: The dew point is the temperature needed to make the air saturated, so the higher the number, the more water content is in the air, Channel 2 Action News meteorologist David Chandley told Q&A on the News in an email. “A dew point in the summer of 70 or above would indicate very humid air,” he wrote. “A dew point in the teens would indicate very dry air.” Relative humidity is the amount of water vapor in the air, which is expressed as a percentage of the maximum amount that the air could hold at the given temperature, Chandley wrote. “This number will change with the rise of temperature,” he wrote. “That is why, typically, the relative humidity is often higher in the morning and evening than in the afternoon.”
Q: How did Sugarloaf Parkway get its name, and when and why did Discover Mills become Sugarloaf Mills? — Lance DeLoach, Thomaston
A: Sugarloaf Parkway comes from the Rollins family farm in Duluth, which was called Sugarloaf Farms, according to the Gwinnett Historical Society. The Rollins family owns Orkin Pest Control and other companies. A sugarloaf was a rounded cone of sugar, which is how it was sold in the 19th century. The name of Discover Mills was changed to Sugarloaf Mills in October, when the 10-year-old naming sponsorship between the mall and Discover Card ended.
Andy Johnston wrote this column. Do you have a question about the news? We’ll try to get the answer. Call 404-222-2002 or email email@example.com (include name, phone and city).