Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
Throughout recorded human history, birds have fascinated and inspired humans to dream of flying. The Greek myth of Daedalus and his son Icarus, who flew too close to the sun and fell to his death, first written by Diodorus (60-30 B.C.E.) and later poetically revised by Ovid (8 C.E.), evokes the dangers of hubris. Many indigenous peoples invoke spiritual qualities and protection ascribed to birds that were symbols of freedom and viewed as sacred messengers of the gods. As a student of bird flight, Leonardo da Vinci (1452-1519) was the first to document dynamic soaring by birds. And, subsequently, the flight of birds inspired human engineered pursuit of powered aircraft design, with the Wright Brothers being the first to design and achieve sustained flight at Kitty Hawk, NC, USA in 1903.
Download full-text PDF |
Source |
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http://dx.doi.org/10.1016/j.cub.2022.06.079 | DOI Listing |
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