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Do farts carry germs? Depends...
Bec Crew
Friday, 05 September 2014
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Do farts carry germs? It’s probably something you’ve never thought about, but now that you’ve heard the question, we bet you’re sort of curious. But be warned, this isn’t going to be pretty.
“It all started with an enquiry from a nurse,” said Dr Karl Kruszelnicki during his science show on the Triple J radio station in Brisbane, Australia. “She wanted to know whether she was contaminating the operating theatre she worked in by quietly farting in the sterile environment during operations, and I realised that I didn’t know. But I was determined to find out.”
According to the Seriously, Science blog at Discover Magazine, Kruszelnicki investigated the question by getting in contact with Canberra-based microbiologist, Luke Tennent, who helped him design and carry out an experiment. The aim was to discover whether or not the wind emitted from a human was filled with germs or just simply smelt bad.
Kruszelnicki explained what happened next:
“[Tennent] 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. Then he observed what happened. Overnight, the second Petri dish sprouted visible lumps of two types of bacteria that are usually found only in the gut and on the skin. But the flatus [gas] which had passed through clothing caused no bacteria to sprout, which suggests that clothing acts as a filter.”
Kruszelnicki and Tennent noticed two types of bacteria in the second Petri dish - in the centre were the bacteria caused by the subject’s fart gas, they said, and a ring of different bacteria around the edge of the Petri dish "was caused by the sheer velocity of the fart, which blew skin bacteria from the cheeks and blasted it onto the dish”, reports Seriously, Science.
The good news? The bacteria that grew was not in any way harmful. The other good news? Scientific evidence for why you should never, ever get naked and fart near your food. You're welcome.
做屁携带病菌？依赖...
BEC船员
周五，2014年9月5日
分享上打印邮件分享
放屁携带病菌？这可能是你从来没有想过，但现在你已经听说过这个问题，我们打赌你是那种好奇。但要注意，这不会是漂亮。
“这一切都始于从护士的询问，”医生卡尔Kruszelnicki说，在他的科学节目在澳大利亚布里斯班的三倍J电台。 “她想知道她是否被污染了手术室，她曾在由操作过程中悄悄地放屁，在无菌的环境中，我意识到，我不知道。但我下定决心要找出答案。“
根据认真，科学的博客探索杂志，Kruszelnicki通过获取在堪培拉为基础的微生物学家，卢克嫩特，谁帮他设计并进行实验的接触调查的问题。其目的是探索从人发出的风是否充满了细菌，或只是单纯的闻到坏。
Kruszelnicki解释接下来发生的事情：
“[嫩特]问一个同事直接破门风到两个培养皿从5厘米，先和衣一段距离，然后用
除去
他的裤子了。然后，他看到发生了什么。过夜，第二培养皿中发芽的两种细菌，通常是发现仅在肠道中，并在皮肤上的可见的团块。但排气[气]这已通过服装传递没有造成细菌的萌芽，这表明服装作为一个过滤器。“
Kruszelnicki和嫩特发现两种细菌在第二个培养皿 - 在该中心是造成这个问题的屁气的细菌，他们说，和周围的培养皿“边缘不同细菌的环是由纯粹的速度造成的放屁，这自爆皮肤上的细菌，从
屁股面颊和抨击它放到培养皿“，报道说真的，科学。
好消息？将长出的菌是不以任何方式对人体有害。另一个好消息？科学证明为什么你应该永远不
赤裸裸的
放屁
靠近你的食物。别客气。
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发表于 2014-9-7 20:29
