英文科普动画STEM动画《阿木科普时间》18. Why can we see our

发布时间：2025-09-15 05:17:15  浏览量：3

why can we see our breath in the cold？so that we can make weird shapes.

no.

our lungs help us to exchange gases.

they are always moist and warm.

now when we breathe inhale oxygen rich air and exhale carbon dioxide rich air.

however as the lungs are warm and moist.

the exhale air is warm and has more moisture in the form of water.

vapor really in cold months.

when this warm and moist exhaled air comes in contact with the cool air.

the moisture in the exhaled air condenses to form tiny water.

droplets.

thus we can see these tiny water.

droplets as cloud or fog in our breath.