Americans will really do anything to avoid using the metric system.
@drmaddkap Traveling at approximately 600 times the airspeed velocity of an unladen swallow, according to my calculations (really)

@aburka @drmaddkap
<Monty Python>
What do you mean? An African or European swallow?
</Monty Python>

<pedant>
There are actually 89 species in the Hirundine family, 61 of which are called sparrows (the rest are martins and saw-wings)...
</pedant>