英国医学杂志假期特辑上的研究：放屁会不会带出细菌? Do farts carry germs? Well, it depends on whether you are wearing pants.
实验方法：堪培拉(Canberra)某研究机构的微生物学家做的一项研究---对着培养皿放屁，还分了穿着裤子和脱了裤子的对照组。。。结果显示脱了裤子放屁会释放细菌而穿着裤子不会，但进一步分析显示这些细菌并不会造成危害---酸奶里也有这些细菌。
好吧，这不是火箭科学。不过话说回来，不知是不是？
He asked a colleague to break wind directly onto two Petri dishes from a distance of 5 centimetres, first fully clothed, then with his trousers down. .....
Our deduction is that the enteric zone in the second Petri dish was caused by the flatus itself, and the splatter ring around that was caused by the sheer velocity of the fart, which blew skin bacteria from the cheeks and blasted it onto the dish. It seems, therefore, that flatus can cause infection if the emitter is naked, but not if he or she is clothed. But the results of the experiment should not be considered alarming, because neither type of bacterium is harmful. In fact, they’re similar to the ‘friendly’ bacteria found in yoghurt.
Our final conclusion? Don’t fart naked near food. All right, it’s not rocket science. But then again, maybe it is?
Infrared Camera catches fart in Airport(机场红外摄像视频)
