The reason your windows become steamed up or foggy is that water droplets condense out of the air onto the glass. The moisture in the air is not attracted to the glass specifically; rather, the moisture condenses on the coolest surfaces in the area. The windows are usually the coldest surface in a residential home or office building.Continue Reading
Temporarily steamed up windows are usually no cause for concern. Common activities that cause windows to become temporarily fogged include hot showers, boiling water in the kitchen and faulty dryer vents. All of these activities fill the air with excess moisture; once the air reaches the saturation point, the water condenses out of the air onto cool surfaces.
In cases where the windows of a home are always slightly foggy, problems that are more serious may be to blame. If there is a slow leak inside the walls of a home, the excess moisture may cause the windows to remain steamed. New homes are more likely than old homes to experience this phenomenon as older houses were not built to the same standards as modern homes. This means that old homes have more air flowing through the house, which reduces the internal humidity.Learn more about Weather & Tides
Hail forms as a result of water droplets being carried above the freezing level by updrafts from thunderstorms. If a hailstone falls toward warmer air at the bottom of a thunderstorm, it thaws. However, if it is caught in another updraft, it collects additional layers of ice, growing larger before falling to the ground as hail.Full Answer >
Rainbows occur when sunlight is refracted by water droplets. From the ground, a person only sees part of a rainbow. In reality, a rainbow is in the form of a complete circle rather than the arc most people are accustomed to.Full Answer >
Wind is the flow of air above the surface of the Earth in an approximate horizontal direction. Wind is named according to the direction it comes from, so a west wind blows from the west to the east.Full Answer >
Hygrometers measure the amount of moisture or humidity in the air, but there are a number of different types of hygrometers, and they display their results in different ways. Most hygrometers display their readings in the amount of water in a given volume of air, making the units milliliters per cubic centimeter. Alternatively, some hygrometers measure relative humidity, which is expressed as a percentage with no units.Full Answer >