Smoke rises upwards no matter what orientation its source may be,That source is usually a fire, warm air rises, particles in that air are carried up by convection currentsIf cooled,smoke becomes denser than air and free falls, behaving like a liquid

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Smoke rises upwards no matter what orientation its source may be,
That source is usually a fire, warm air rises, particles in that air are carried up by convection currents
If cooled,smoke becomes denser than air and free falls, behaving like a liquid
时政
( twitter.com )

1年前由 Science girl 提交

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Smoke rises upwards no matter what orientation its source may be, That source is usually a fire, warm air rises, particles in that air are carried up by convection currents If cooled,smoke becomes denser than air and free falls, behaving like a liquid 时政 ( twitter.com )

时政

When smoke rises straight up from a chimney, forming a thin, unbroken thread, it is often the result of very calm and stable atmospheric conditions, with little or no wind. 有趣 ( twitter.com)

有趣

Doing it upwards on some stairs is crazy 有趣 ( twitter.com)

有趣

Due to strong winds, this waterfall is flowing upwards 时政 ( twitter.com)

时政

A very unusual sight. Mt. Rainier casting its shadow upwards onto the clouds. 有趣 ( twitter.com)

有趣

Waipuhia waterfall, which cannot be poured due to the strong wind and flows upwards, Hawaii. 有趣 ( twitter.com)

有趣

When you need to smoke 有趣 ( twitter.com)

有趣

Just a little bit of smoke …. 时政 ( twitter.com)

时政

Iridescence of smoke in a sunbeam 时政 ( twitter.com)

时政

First dog wanted all the smoke 有趣 ( twitter.com)

有趣

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Smoke rises upwards no matter what orientation its source may be,
That source is usually a fire, warm air rises, particles in that air are carried up by convection currents
If cooled,smoke becomes denser than air and free falls, behaving like a liquid
时政
( twitter.com )

When smoke rises straight up from a chimney, forming a thin, unbroken thread, it is often the result of very calm and stable atmospheric conditions, with little or no wind.
有趣
( twitter.com)

Doing it upwards on some stairs is crazy
有趣
( twitter.com)

Due to strong winds, this waterfall is flowing upwards

时政
( twitter.com)

A very unusual sight.
Mt. Rainier casting its shadow upwards onto the clouds.
有趣
( twitter.com)

Waipuhia waterfall, which cannot be poured due to the strong wind and flows upwards, Hawaii.

有趣
( twitter.com)

When you need to smoke
有趣
( twitter.com)

Just a little bit of smoke ….
时政
( twitter.com)

Iridescence of smoke in a sunbeam
时政
( twitter.com)

First dog wanted all the smoke
有趣
( twitter.com)