A rushing movement, aimed at achieving a particular result? A chaotic inclination of moving particles? A gust of wind, a conscious obedience to a vector? Inert or aspiring?
Here are some stories you won't read elsewhere in the motorsport press...
It was a good week out on track for Ferrari but the same cannot be said of Marussia...
It must be F1 testing, the sound of the first "sandbagging" has been heard in the paddock already and we've only had four days of it...
More of the F1 news stories not making headlines elsewhere in the motorsport press - for a very good reason...
Elfin microphone jockey Jenny Gow led the R5 Live coverage in 2014 - when the network could be arsed to put them on air we got some great stuff...