you mean jet streams...or thermals?
Thermals are useful to birds because the hot air rises and the large wingspans of birds traps the rising air underneath causing them to rise and be able to glide.
A. Thermals A Conductor is a material which allows either heat or electricity to pass easily through it. A Catalyst is a material which speeds up a chemical reaction without being used up itself. An Enzyme is a biological catalyst, i.e. a catalyst which occurs in living things. Chemical Bond refers to the forces which hold atoms together in a molecule or material.
Same reason why gliders and hang gliders do. On sunny days, a large expanse of black will heat up. The air above it will get warmer and rise, creating an air current going up. (Pilots call these "thermals.") When a vehicle that's very lightweight hits a thermal, it will suddenly rise. I have noticed that even commercial airplanes have difficulty fighting the thermals to land on sunny summer days in the southern U.S.; smooth landings in those conditions are rare.
gg
Yes, thermals do occur as a result of hot and cold air movements.
Thermals
Hot air rises
wind, breezes, gales, zephyrs, thermals, down drafts !
The Thermals was created in 2002.
thermals are used when cold
A thermal is warm air rising off the ground that has been heated by the sun.
Storks have a hard time getting into the air due to their large size. Once they get into the air, they find warm columns of air called thermals. They use these to help them glide over long distances, reducing the amount they need to flap.
The huge thermals of hot air that rise above Parliament House.
yes,The higher the altitude the cooler it is, this decreases evaporation but also due to the moisture (cloud) cools as it climb on thermals it condenses and falls as rain or hangs in the air as mist and fog.Read more: What_effect_does_elevation_have_on_rainfall
Thermals exist because of uneven heating of the earth. Thermals form above mountains, near rivers and lakes, highways and even plowed fields where you have sun absorbing ground warmer than grass. It is more common on sunny days with cumulus clouds. This happens more in the summer.
heating of the air by the sun causes thermals and sea breezes to form