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Why do your glasses fog when go from the cold outside to a warm house?
When you are outside in the cold your glasses become cold. Because the air within buildings tends to be more humid than the air outdoors when the outdoor temperature is low, upon entering the house the water vapour in the air changes state from gas to liquid on the cold surface of your glasses. This results in your glasses fogging.
Why would a pair of eyeglasses fog up when brought from a cold place to a warm place?
The fogging occurs because the cold temperature causes water vapor in the air to condense on the colder surface of the glasses. When you move the glasses to a warmer place, the condensation turns into visible water droplets, creating the foggy effect.
How does insulation keep things cold?
Insulation helps keep things cold by reducing the transfer of heat. It traps cold air inside a space and prevents warm air from entering, creating a barrier that slows down the process of heat exchange, thus maintaining a cooler temperature for longer periods of time.
Is Warm air heavier or cold air?
Cold air is heavier than warm air because cold air has higher density. This is because the molecules in cold air are closer together, leading to a greater mass per unit volume compared to warm air.
What is the lightest warm water or cold water?
Lightest warm water is steam, while the lightest cold water is ice.
Why do your glasses fog when go from the cold outside to a warm house?
When you are outside in the cold your glasses become cold. Because the air within buildings tends to be more humid than the air outdoors when the outdoor temperature is low, upon entering the house the water vapour in the air changes state from gas to liquid on the cold surface of your glasses. This results in your glasses fogging.
What purpose does loft boards serve?
Loft boards are pieces of foam board which can be installed in an attic. Loft boards provide insulation to keep warm from escaping and cold air from entering a building.
My glasses fog up mostly when I get nervous HELP?
Your face gets hot when your nervous which leads to fogging up your glasses like when your out on a cold day and then come into a warm house your glasses cloud up.
Why do people who were glasses often see condensation on their lenses when they walk from a cold outdoor environment into a warm house?
condensation
How do penguin keep them self warm?
They eat a lot so their body gets a thick layer of fat that blocks the cold from entering.
What are the differences between a warm roof and a cold roof, and which one is more suitable for my building?
A warm roof has insulation above the roof deck, keeping the structure warm, while a cold roof has insulation below the roof deck, allowing the roof to stay cold. The choice between a warm roof and a cold roof depends on factors like climate, building design, and budget. In general, a warm roof is more suitable for buildings in colder climates to prevent heat loss, while a cold roof may be more appropriate for buildings in warmer climates to prevent condensation issues. Consulting with a roofing professional can help determine the best option for your specific building.
What is exchange mechanism?
Penguins have a counter current heat exchange mechanism. The warm blood entering their flippers flows past cold blood leaving. This warms the cold blood and cools the warm blood thus reducing heat loss from the flippers.
What is current mechanism?
Penguins have a counter current heat exchange mechanism. The warm blood entering their flippers flows past cold blood leaving. This warms the cold blood and cools the warm blood thus reducing heat loss from the flippers.
Why does a pair of glasses fog up after a shower?
First thing your glasses have to be cold. Second you have to be in a warm/hot area. Glasses "fog up" because when the warm/hot water vapor gets near the cold glasses, it turns into the "fog" you see on glasses.
Name of thing along bottom of door to keep cold air out?
Door sweep. It is a strip of material attached to the bottom of a door to prevent cold air from entering and warm air from escaping.
How does the counter-current heat exchange mechanism helps penguins cope with extreme cold?
The warm blood entering the flippers warms up the cold blood leaving, to stop it cooling the body ...
Is a catfish warm or cold blooded?
are catfish cold blooded or warm blooded
