A rose air-freighted out of Kenya at night and sold under the Aalsmeer clock at dawn can be packed, loaded on a truck and ready for sale in a Paris flower shop by that afternoon.
In the case of a freely rising air bubble, good agreement was obtained with the theoretical drag coefficient values of Ryskin and Leal.
If a sufficiently large volume of air rises, an updraft (a strong current of rising air) will be produced.
Using a finite element analysis method, Sun et al. (2004) reported an embankment settlement of 25 cm from 2002 to 2030 with an assumption of rising air temperature of 0.02 °C year−1.
Each of these five glaciers flows outward into the sea, so that a combination of both rising air temperatures and ocean temperatures likely play a part in their ongoing retreat.
Much like a dust devil or whirlwind, the rapidly rising air above a wildfire can accelerate and turn the local vorticity into a tight vertical vortex, now composed of fire instead of dust.
The track of this upper-level vortex was nearly ideal for creating a surge of rapidly rising air.
The theory incorporates mass transfer by Brownian diffusion, microhydrodynamics of particles in the vicinity of a slip surface of rising air bubbles, and colloidal interactions that come into effect at small separation distances.
