Executive Summary. Item 136, paragraph B.12., Chapter 665, 2015 Virginia Acts of Assembly directs the. Superintendent of Public Instruction to provide a report on the status of teacher. salaries, by local school division, to the Governor and the Chairmen of the Senate. Finance and House Appropriations Committees.
Now, in the case of the swallow, the Strouhal number is actually less than the average so it doesnât work right out of the box. For all the details, see: Estimating the Airspeed Velocity of an Unladen Swallow. In the end, itâs concluded that the airspeed velocity of a (European) unladen swallow is about 24 miles per hour or 11 meters per second.
Compare that to baby robins, which fledge when they are 14-16 days old and weigh over 50 grams! Swallows don't nest in trees. A swallow builds its nest on a barn rafter, bridge overhang, or other structure well off the ground. If a baby swallow doesn't make a strong first flight, it will crash on the ground. In order to survive this first flight, a swallow fledgling must have strong wings. That's why it starts exercising, flapping its little wings hard, by the time it's 9 days old.