https://www.selleckchem.com/GSK-3.html
The creation of unmanned, artistic hot air balloons in Brazil represents an insurgent technology-developed independently by technicians at the margins of society in conflict with formal technological systems. Brazil has a long tradition of launching hot air balloons at Catholic festivals. In the mid twentieth century, balloons became a secular art form beyond saints' days. As the secular practice grew, balloonists created increasingly larger aircraft, requiring complex technical expertise. By the 1970s and 1980s, teams were making technically and
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