The Mysterious Cough, Caught on Film


	The Mysterious Cough, Caught on Film

Silkweaver

10-28-2008 8:17 PM

792 views

tags:

imaging, health, cough, photography

2 Comments |

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10-29-2008 4:29 PM

carrerinyes

Fascinating! Remember what your Mom always told you about putting your hand up to your mouth when you cough

10-30-2008 1:42 AM

Deepti

interesting...

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/7b8dbfb3-3156-4134-bff8-9a024eb31a20/E91B6C73-2592-4B97-86B0-2AABA1CE9D84/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.nytimes.com/2008/10/28/science/28cough.html?_r=2&hp&oref=slogin&oref=slogin" href="http://www.nytimes.com/2008/10/28/science/28cough.html?_r=2&hp&oref=slogin&oref=slogin" style="font-size: 11px;">www.nytimes.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/10/28/science/28cough.html?_r=2&hp&oref=slogin&oref=slogin">In Roald Dahl’s novel “The B.F.G.,” the title character, a big friendly giant, captures dreams in glass jars. At <A title="More articles about Pennsylvania State University" href="http://topics.nytimes.com/top/reference/timestopics/organizations/p/pennsylvania_state_university/index.html?inline=nyt-org" linkindex="34">Pennsylvania State University</A>, a professor of engineering has captured something less whimsical but no less ephemeral — a <A title="In-depth reference and news articles about Cough." href="http://health.nytimes.com/health/guides/symptoms/cough/overview.html?inline=nyt-classifier" linkindex="35" set="yes">cough</A> — on film. </blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/10/28/science/28cough.html?_r=2&hp&oref=slogin&oref=slogin"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/www.nytimes.com/img/414B878B-8983-46DC-944A-42CE0A4B87D5" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/10/28/science/28cough.html?_r=2&hp&oref=slogin&oref=slogin">The image, published online Oct. 9 by The New England Journal of Medicine, was created by schlieren photography, which “takes an invisible phenomenon and turns it into a visible picture</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/10/28/science/28cough.html?_r=2&hp&oref=slogin&oref=slogin">Schlieren is German for “streaks”; in this case it refers to regions of different densities in a gas or a liquid, which can be photographed as shadows using a special technique.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/10/28/science/28cough.html?_r=2&hp&oref=slogin&oref=slogin">Though coughs spread tuberculosis, SARS, <A title="In-depth reference and news articles about The flu." href="http://health.nytimes.com/health/guides/disease/the-flu/overview.html?inline=nyt-classifier" linkindex="41">influenza</A> and other diseases, surprisingly little is known about them. “We don’t have a good understanding of the air flow,” Dr. Settles said.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.nytimes.com/2008/10/28/science/28cough.html?_r=2&hp&oref=slogin&oref=slogin">The expelled air, traveling at 18 miles per hour, mixed with cooler  surrounding air and produced “temperature differences that bend light rays by different amounts</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/E91B6C73-2592-4B97-86B0-2AABA1CE9D84/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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