By Jonathan O’Callaghan from NYT Science https://ift.tt/cS8ridg via IFTTT
How hummingbirds hum
New measurement technique unravels what gives hummingbird wings their characteristic sound
More at https://www.nsf.gov/discoveries/disc_summ.jsp?cntn_id=302363&WT.mc_id=USNSF_1
This is a Research News item.
Read more at nsf.gov
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