Members of Moscow Scouts BSA Troops 333, 344, and 345 and Pack 323 toured the University of Idaho William F. Barr Entomological Museum on May 23. The boys and girls
Wednesday, 20 Jan 2021 11:51 AM MYT
This handout picture taken in June 2018 released on January 19, 2021 by the Lund University shows a Silver-washed fritillary butterfly close to the Lund University field station Stensoffa, outside Lund, in Southern Sweden. AFP pic
Subscribe to our Telegram channel for the latest updates on news you need to know.
PARIS, Jan 20 The whimsical, wafting flight of butterflies may not give the impression of top aerodynamic performance, but research published yesterday suggests their large flexible wings could be perfectly designed to give them a burst of jet propulsion.
Scientists at Lund University in Sweden set out to verify a decades-old theory that insects “clap” their wings together, squeezing out the air between with such force that it thrusts them forward.