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<ul id="subnavDrkarl"> <li><a href="/science/drkarl/greatmomentsinscience/"><span>Great Moments in Science</span></a></li> <li><a href="/science/drkarl/scienceontriplej"><span class="radio">Dr Karl on triplej</span></a></li> <li><a href="/science/drkarl/trek/"><span>Karl Trek</span></a></li> <li><a href="/tv/sleekgeeks/"><span>Sleek Geeks</span></a></li> <li><a href="/science/sleekgeeks/eureka/"><span>School's video prize</span></a></li> <li class="last"><a href="https://www.abc.net.au/news/karl-kruszelnicki/8462002"><span>Karl Who?</span></a></li> </ul> </li> <li class="navlink navQandA"><a href="/news/science/" class="genreRoot">Ask an Expert</a></li> <li class="navlink navBasics"><a href="/news/science/" class="genreRoot">Bernie's Basics</a></li> <li class="navlink navGames"><a href="/news/science/" class="genreRoot">Quizzes & Games</a> </li> <li class="navlink navTeachers"><a href="/science/surfingscientist/" class="genreRoot">Teaching Science</a> <ul id="subnavLearn"> <li><a 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<fieldset> <legend>Change topic:</legend> <select name="topic" id="topic"> <option value="latest" selected="selected">All topics</option> <option value="ancient">Ancient Worlds</option> <option value="human">Being Human</option> <option value="energy">Energy & Transport</option> <option value="enviro">Environment & Nature</option> <option value="health">Health & Medical</option> <option value="tech">Innovation & Technology</option> <option value="space">Space & Astronomy</option> </select><input value="Go" type="submit"> </fieldset> </form> <h1 class="chapterTitle noBorder drkarl"><span>Dr Karl</span></h1> <p class="dateStamp">Wednesday, 28 June 2017</p> <div class="bulletin" id="bulletin-"> <div class="inline"> <a href="https://www.abc.net.au/news/science/2017-07-04/dr-karl-did-life-begin-on-underwater-mountain-range/8658542"><img src="" alt="hydrothermal vent" title="" class="img600"></a> <div id="topHighlight"> <div class="highlightStory"> <h2><em class="slug"><a href="/science/drkarl/drkarl/">Great Moments in Science</a></em> <a href="https://www.abc.net.au/news/science/2017-07-04/dr-karl-did-life-begin-on-underwater-mountain-range/8658542">Dr Karl: Did life begin on an invisible mountain range?</a></h2> <p>Could life have evolved on the longest mountain range on Earth, that is so far under the water it's invisible to most of us? Dr Karl goes in search for the origins of life.</p> <div class="clear"></div> </div> </div> <div class="bulletinHighlights links"> <ul class="audioHighlightsLinks"</ul> </div> </div> <div class="clear"></div> </div> <div class="clear"></div>  <div class="sideBySideWrapper"> <div id="sSgreatmomentsinscience" class="sideBySide three"> <h3 class="subsiteHeading"><span class="txupdate xml"><a href="https://www.abc.net.au/science/subsites/greatmomentsinscience/latest/rss.xml" title="https://www.abc.net.au/science/subsites/greatmomentsinscience/latest/rss.xml" class="rss">RSS<span> (Latest Dr Karl's Great Moments In Science web feed)</span></a></span><a href="/science/drkarl/greatmomentsinscience/">Great Moments in Science</a></h3> <a href="https://www.abc.net.au/news/science/2017-05-12/dr-karl-poo-feces-mammal-12-seconds-science/8496988?topic=latest"><img src="https://www.abc.net.au/reslib/201705/r1698857_26377400.jpg" class="frontpage" alt="Elephants" title=""></a> <h4><a href="https://www.abc.net.au/news/science/2017-05-12/dr-karl-poo-feces-mammal-12-seconds-science/8496988">Sorry, not all animals take 12 seconds to poo</a></h4> <p>Headlines don't get much punchier than the recent, "All mammals poop in 12 seconds ...". Dr Karl goes behind the clickbait to reveal the truth.</p> </div> <div id="sSscienceontriplej" class="sideBySide three"> <h3 class="subsiteHeading"><span class="txupdate xml"><a href="https://www.abc.net.au/science/subsites/scienceontriplej/latest/rss.xml" title="https://www.abc.net.au/science/subsites/scienceontriplej/latest/rss.xml" class="rss">RSS<span> (Latest Dr Karl on triplej web feed)</span></a></span><a href="/science/drkarl/scienceontriplej/">Dr Karl on triplej</a></h3> <a href="https://www.abc.net.au/triplej/media/s4980669.htm?topic=latest"><img src="https://www.abc.net.au/reslib/201005/r569806_3509261.jpg" class="frontpage" alt="Dr Karl" title=""></a> <h4><a href="https://www.abc.net.au/triplej/media/s4980669.htm">Muscle memory, buttery sweat and our robot overlords</a></h4> <p>Where does the wind come from? Can we affect other peoples dreams? Why do some people smell like butter when they sweat?</p> </div> <div id="sSkarltrek" class="sideBySide three"> <h3 class="subsiteHeading"><span class="txupdate xml"><a href="https://www.abc.net.au/science/subsites/karltrek/latest/rss.xml" title="https://www.abc.net.au/science/subsites/karltrek/latest/rss.xml" class="rss">RSS<span> (Latest Karl Trek web feed)</span></a></span><a href="/science/drkarl/karltrek/">Karl Trek</a></h3> <a href="https://www.abc.net.au/science/drkarl/trek/?topic=latest"><img src="https://www.abc.net.au/reslib/201001/r501543_2654459.jpg" class="frontpage" alt="Karl Trek 2009" title="Ornate hand-made sign for pilgrims of the the 760 km Santiago de Compostela"></a> <h4><a href="https://www.abc.net.au/science/drkarl/trek/">Karl Trek 2009</a></h4> <p>Follow Dr Karl's six-week trek along the famous medieval Spanish 'El Camino' pilgrimage, a footpath from the French-Spanish border to Santiago de Compostela.</p> </div> <div class="clear"></div> </div> <a name="exploreMore"></a><h2><br>Explore more Dr Karl </h2><div id="pageNavTop"><div class="pagenav"><p> 1 <a href="?site=science&topic=latest&tag=drkarl&page=02">2</a> <a href="?site=science&topic=latest&tag=drkarl&page=03">3</a> <a href="?site=science&topic=latest&tag=drkarl&page=04">4</a> <a href="?site=science&topic=latest&tag=drkarl&page=05">5</a> <span class="pageNavNext" title="Next page"> <a href="?site=science&topic=latest&tag=drkarl&page=02">Next</a> </span> </p></div> </div> <h4 class="item003"> <a href="https://www.abc.net.au/news/science/2017-04-26/dr-karl-the-real-cost-of-air-pollution/8472666"><img src="https://www.abc.net.au/reslib/201704/r1692677_26250154.jpg" align="left" alt="">The real costs of air pollution</a> </h4> <p class="item003 itemList">Air pollution doesn't just look and smell bad, it kills. And it costs megabucks. Dr Karl unpacks the impact of the great VW emissions scam, and more. </span></p> <h4 class="item004"> <a href="https://www.abc.net.au/news/science/2017-04-18/dr-karl-why-isnt-cannibalism-more-common/8449450"><img src="https://www.abc.net.au/reslib/201704/r1689804_26191717.jpg" align="left" alt="">Why isn't cannibalism more common?</a> </h4> <p class="item004 itemList">Cannibalistic behaviour has been observed in many animal species - and, for most of history, in humans as well. What changed? </span></p> <h4 class="item005"> <a href="https://www.abc.net.au/news/science/2017-04-11/dr-karl-superfetation-can-you-get-pregnant-during-pregnancy/8430238"><img src="https://www.abc.net.au/reslib/201704/r1687793_26150832.jpg" align="left" alt="">Can you get pregnant during a pregnancy?</a> </h4> <p class="item005 itemList">It's a phenomenon known as superfetation, and while it's rare, it can happen, says Dr Karl. </span></p> <h4 class="item006"> <a href="https://www.abc.net.au/news/science/2017-04-04/dr-karl-how-do-you-clean-up-60-years-of-space-junk/8411836"><img src="https://www.abc.net.au/reslib/201704/r1685377_26099117.jpg" align="left" alt="">How do you clean up 60 years of space junk?</a> </h4> <p class="item006 itemList">There's 60 years of space junk floating around the earth's orbit crashing into itself. How do you clean it up? </span></p> <h4 class="item007"> <a href="https://www.abc.net.au/radionational/programs/greatmomentsinscience/how-the-gold-nobel-prize-medals-were-hidden-from-the-nazis/8360522"><img src="https://www.abc.net.au/reslib/201703/r1679523_25974514.jpg" align="left" alt="">How the gold Nobel Prize medals were hidden from the Nazis</a> </h4> <p class="item007 itemList">Sending gold out of Hitler's Germany was illegal so how did Nobel prize winners keep their medal's safe? </span></p> <h4 class="item008"> <a href="https://www.abc.net.au/radionational/programs/greatmomentsinscience/what-we-know-about-misophonia-the-hatred-of-sounds/8353586"><img src="https://www.abc.net.au/reslib/201703/r1677244_25926856.jpg" align="left" alt="">What we know about misophonia, the 'hatred of sounds'</a> </h4> <p class="item008 itemList">A condition called misophonia-where people adversely react to particular sounds, often with feelings of rage, terror, fear and panic-was first identified 20 years ago, but is only now starting to be better understood, says Dr Karl. </span></p> <h4 class="item009"> <a href="https://www.abc.net.au/radionational/programs/greatmomentsinscience/paying-service-to-the-human-lip/8321542"><img src="https://www.abc.net.au/reslib/201703/r1674503_25869521.jpg" align="left" alt="">Paying service to the human lip</a> </h4> <p class="item009 itemList">With hundreds of muscles and multiple layers of cells, the human lip serves a much greater role than we give them credit for, says Dr Karl. </span></p> <h4 class="item010"> <a href="https://www.abc.net.au/radionational/programs/greatmomentsinscience/freezing-in-office-because-air-conditioning-standards-sexist/8300132"><img src="https://www.abc.net.au/reslib/201702/r1671509_25806631.jpg" align="left" alt="">Freezing in the office? It's because air conditioning standards are sexist</a> </h4> <p class="item010 itemList">For 50 years, air conditioning in commercial buildings has been set using the standards designed for 40-year-old men in business suits. That's left women out in the cold, argues Dr Karl. </span></p> <h4 class="item011"> <a href="https://www.abc.net.au/radionational/programs/greatmomentsinscience/how-humankind-has-changed-our-planet/8273806"><img src="https://www.abc.net.au/reslib/201702/r1668948_25753692.jpg" align="left" alt="">How humankind has changed our planet</a> </h4> <p class="item011 itemList">Many factors have contributed to how Earth has changed over time, but humankind has been a major contributor in a relatively short period of time, writes Dr Karl. </span></p> <h4 class="item012"> <a href="https://www.abc.net.au/radionational/programs/greatmomentsinscience/could-we-capture-and-store-energy-from-lightning/8239402"><img src="https://www.abc.net.au/reslib/201702/r1666106_25692557.jpg" align="left" alt="">Could we capture and store energy from lightning?</a> </h4> <p class="item012 itemList">Could lightning power the planet instead of fossil fuels? Dr Karl does the numbers and the answer is surprising. </span></p> <h4 class="item013"> <a href="https://www.abc.net.au/radionational/programs/greatmomentsinscience/the-power-of-lightning/8222972"><img src="https://www.abc.net.au/reslib/201702/r1663939_25647360.jpg" align="left" alt="">How lightning happens: a step-by-step guide</a> </h4> <p class="item013 itemList">It takes a unique series of weather factors to create the awesome power of lightning, explains Dr Karl. </span></p> <h4 class="item014"> <a href="https://www.abc.net.au/radionational/programs/greatmomentsinscience/8208580"><img src="https://www.abc.net.au/reslib/201702/r1661644_25599944.jpg" align="left" alt="">Why we need a leap second added to our clocks</a> </h4> <p class="item014 itemList">As New Year's Eve ticked over to 2017, scientists added an extra second to atomic clocks to compensate for the Earth's variable rotation. Dr Karl explains the pros and cons of doing this. </span></p> <h4 class="item015"> <a href="https://www.abc.net.au/radionational/programs/greatmomentsinscience/what-would-happen-if-the-earth-stopped-rotating/8180664"><img src="https://www.abc.net.au/reslib/201701/r1656847_25496691.jpg" align="left" alt="">What would happen if the Earth stopped rotating?</a> </h4> <p class="item015 itemList">The good news is that if the Earth's rotation stopped, we wouldn't fall off, but it would be a very inhospitable place, Dr Karl explains. </span></p> <div id="pageNavEnd"><div class="pagenav"><p> 1 <a href="?site=science&topic=latest&tag=drkarl&page=02">2</a> <a href="?site=science&topic=latest&tag=drkarl&page=03">3</a> <a href="?site=science&topic=latest&tag=drkarl&page=04">4</a> <a href="?site=science&topic=latest&tag=drkarl&page=05">5</a> <span class="pageNavNext" title="Next page"> <a href="?site=science&topic=latest&tag=drkarl&page=02">Next</a> </span> </p></div> </div>  </div> <div id="scienceSearch">  <form class="searchKeyword" action="https://search.abc.net.au/search/search.cgi" method="get"> <input name="form" value="simple" type="hidden"> <input name="num_tiers" value="1" type="hidden"> <input name="num_ranks" value="20" type="hidden"> <input name="collection" value="abcall" type="hidden"> <input name="meta_v" id="scienceAll" value="science" type="hidden"> <fieldset> <legend><a href="https://search.abc.net.au/search/search.cgi?collection=abcall&form=simple&meta_v=science%2Farticles&query=Science" class="archiveKeyword">Search ABC Science</a></legend><em class="readMore"><a href="/science/articles/archive/?section=2024">Browse the archive</a> </em> <p><input name="query" id="query" size="25" maxlength="50" type="text"> <input value="Search" type="submit"></p> </fieldset> </form> </div>    <div id="browse" class="latest"> <div class="browseItemWrapper"> <h3><span><a href="/profiles/content/s2193276.htm?site=science/k2">Who is Dr Karl 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