high stroke frequency and peciluar reciprocal flapping motion of insects

[seval]

the small size,high stroke frequency and peciluar reciprocal flapping motion of insects have combined to thwart simple 'back-of-the-envelope' explanations of flight aerodynamics.

seval tarafından gönderildi

the small size,high stroke frequency and peciluar reciprocal flapping motion of insects have combined to thwart simple 'back-of-the-envelope' explanations of flight aerodynamics.

"In the hard sciences, back-of-the-envelope calculation is often associated with physicist Enrico Fermi,[1] who was well known for emphasizing ways that complex scientific equations could be approximated within an order of magnitude using simple calculations. He went on to develop a series of sample calculations which are called "Fermi Questions" or "Back-of-the-Envelope Calculations" and used to solve Fermi problems.[2][3]

Another related anecdote involves the wife of Albert Einstein visiting a star observatory. She asked the reason for the fancy, complicated equipment. The observatory director answered that by them they "unveil the secrets of the universe". She answered: "Well, my husband reveals the secret of the universe with a pencil and a used envelope". http://en.wikipedia.org/wiki/Back-of-the-envelope_calculation"

Sineklerin küçük boyutlu, yüksek frekanslı ve tuhaf karşılıklı kanat çırpma hareketleri; uçus aerodinamiklerinin "basit" açıklamalarının önünde engel oluşturan şeyler arasındadır.