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Winners of 2018 Ig Nobel Prizes unveiled(1/6)

2018-09-14 15:40:09 Ecns.cn Editor :Mo Hong'e

$Research curator at Harvard Art Museums, Francesca Brewer (left) , reacts after cleaning a painting with saliva during the Ig Nobel award ceremonies at Harvard University in Cambridge, Mass., Thursday, Sept. 13, 2018. A team from Portugal who did not attend, won the award for chemistry for measuring the degree to which human saliva is a good cleaning agent for dirty surfaces. The annual prize series honors 10 comical but practical scientific studies \$

Research curator at Harvard Art Museums, Francesca Brewer (left) , reacts after cleaning a painting with saliva during the Ig Nobel award ceremonies at Harvard University in Cambridge, Mass., Thursday, Sept. 13, 2018. A team from Portugal who did not attend, won the award for chemistry for measuring the degree to which human saliva is a good cleaning agent for dirty surfaces. The annual prize series honors 10 comical but practical scientific studies "that first make people laugh, and then make them think." The prize is run by Annals of Improbable Research (AIR), an international scientific humor magazine. (Photo/Agencies)

$Akira Horiuchi, right of Japan, who won the Ig Nobel in medical education demonstrates his self colonoscopy technic during award ceremonies at Harvard University in Cambridge, Mass., Thursday, Sept. 13, 2018. The annual prize series honors 10 comical but practical scientific studies \$

Akira Horiuchi, right of Japan, who won the Ig Nobel in medical education demonstrates his self colonoscopy technic during award ceremonies at Harvard University in Cambridge, Mass., Thursday, Sept. 13, 2018. The annual prize series honors 10 comical but practical scientific studies "that first make people laugh, and then make them think." The prize is run by Annals of Improbable Research (AIR), an international scientific humor magazine (Photo/Agencies)

David Wartinger, left, accepts his Ig Nobel award from Nobel laureate Wolfgang Ketterle (physics, 2001) during ceremonies at Harvard University in Cambridge, Mass., Thursday, Sept. 13, 2018. Wartinger won for for using roller coaster rides to try to hasten the passage of kidney stones. (Photo/Agencies)

$Thea Blackler speaks after receiving the Ig Nobel award in literature during ceremonies at Harvard University in Cambridge, Mass., Thursday, Sept. 13, 2018. Blackler and her team won for finding that people who buy high tech products really can\'t be bothered with the instruction manual. (Photo/Agencies)$

Thea Blackler speaks after receiving the Ig Nobel award in literature during ceremonies at Harvard University in Cambridge, Mass., Thursday, Sept. 13, 2018. Blackler and her team won for finding that people who buy high tech products really can't be bothered with the instruction manual. (Photo/Agencies)

Hanyu Liang, right, and her team receive the Ig Nobel award for economics during ceremonies at Harvard University in Cambridge, Mass., Thursday, Sept. 13, 2018. The team won for investigating whether it is effective for employees to use Voodoo dolls to retaliate against abusive bosses. (Photo/Agencies)

Maria Ferrante, right, and Jan Hadland perform in the Broken Heart Opera during Ig Nobel award ceremonies at Harvard University in Cambridge, Mass., Thursday, Sept. 13, 2018. (Photo/Agencies)