By storing power for when it's needed most, speakers that plug into a USB port can produce high-quality sound without the need for mains powerimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5cd3d4/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Smart+USB+speakers+pump+up+the+volume+from+laptopslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727765.800-smart-usb-speakers-pump-up-the-volume-from-laptops.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Smart+USB+speakers+pump+up+the+volume+from+laptopslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727765.800-smart-usb-speakers-pump-up-the-volume-from-laptops.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869401278/u/60/f/10897/c/749/s/224187348/kg/26-63-68-168/a2.htm"img src="http://da.feedsportal.com/r/78869401278/u/60/f/10897/c/749/s/224187348/kg/26-63-68-168/a2.img" border="0"//a

Stephen Hawking's new book is the biggest science news story of the day. Has he suddenly given up a religious belief, asks bRoger Highfield/bimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5cd3d5/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Hawking+hasn%27t+changed+his+mind+about+Godlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19391-hawking-hasnt-changed-his-mind-about-god.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Hawking+hasn%27t+changed+his+mind+about+Godlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19391-hawking-hasnt-changed-his-mind-about-god.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869401276/u/60/f/10897/c/749/s/224187349/kg/65/a2.htm"img src="http://da.feedsportal.com/r/78869401276/u/60/f/10897/c/749/s/224187349/kg/65/a2.img" border="0"//a

Congress could find a way around the shock court ruling that has frozen US government support for work on human embryonic stem cellsimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5c2278/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Can+US+Congress+overturn+stem-cell+funding+freeze%3Flink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727763.600-can-us-congress-overturn-stemcell-funding-freeze.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Can+US+Congress+overturn+stem-cell+funding+freeze%3Flink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727763.600-can-us-congress-overturn-stemcell-funding-freeze.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869392964/u/60/f/10897/c/749/s/224141944/kg/43/a2.htm"img src="http://da.feedsportal.com/r/78869392964/u/60/f/10897/c/749/s/224141944/kg/43/a2.img" border="0"//a

In his new book, The Grand Design, Stephen Hawking argues that there is no single theory of reality because there is no single realityimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5bfff0/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Stephen+Hawking+says+there%27s+no+theory+of+everythinglink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fculturelab%2F2010%2F09%2Fstephen-hawking-says-theres-no-theory-of-everything.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Stephen+Hawking+says+there%27s+no+theory+of+everythinglink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fculturelab%2F2010%2F09%2Fstephen-hawking-says-theres-no-theory-of-everything.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78868418935/u/60/f/10897/c/749/s/224133104/kg/31/a2.htm"img src="http://da.feedsportal.com/r/78868418935/u/60/f/10897/c/749/s/224133104/kg/31/a2.img" border="0"//a

A form of water deep within Uranus and Neptune may behave like a liquid and a solid simultaneously, explaining the planets' bizarre magnetic fieldsimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5bb906/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Weird+water+lurking+inside+giant+planetslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.500-weird-water-lurking-inside-giant-planets.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Weird+water+lurking+inside+giant+planetslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.500-weird-water-lurking-inside-giant-planets.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869389405/u/60/f/10897/c/749/s/224114950/a2.htm"img src="http://da.feedsportal.com/r/78869389405/u/60/f/10897/c/749/s/224114950/a2.img" border="0"//a

Throughout September bNew Scientist/b is running a photo competition ndash; we want your photos on the theme of movement and scienceimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5c670e/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Photo+competition%3A+Science+in+motionlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19390-photo-competition-science-in-motion.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Photo+competition%3A+Science+in+motionlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19390-photo-competition-science-in-motion.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/div

Lasers can bring down remote-piloted aircraft ndash; but a new demo shows they can also keep the craft airborneimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5ac291/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Laser-powered+helicopter+hovers+for+hourslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19389-laserpowered-helicopter-hovers-for-hours.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Laser-powered+helicopter+hovers+for+hourslink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19389-laserpowered-helicopter-hovers-for-hours.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869376414/u/60/f/10897/c/749/s/224051857/kg/63/a2.htm"img src="http://da.feedsportal.com/r/78869376414/u/60/f/10897/c/749/s/224051857/kg/63/a2.img" border="0"//a

Fifteen children in Finland were diagnosed with narcolepsy after receiving swine flu vaccine ndash; but it could have occurred by chanceimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5a54d8/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Swine+flu+drug+in+narcolepsy+probelink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727763.500-swine-flu-drug-in-narcolepsy-probe.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Swine+flu+drug+in+narcolepsy+probelink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727763.500-swine-flu-drug-in-narcolepsy-probe.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869447755/u/60/f/10897/c/749/s/224023768/kg/45-63/a2.htm"img src="http://da.feedsportal.com/r/78869447755/u/60/f/10897/c/749/s/224023768/kg/45-63/a2.img" border="0"//a

In the last of his posts about photographing the eclipse, Dan Falk compares his analogue and digital images. But which does he think is best?img width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5a54d9/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Ultimate+eclipse+photo%3A+The+film+has+been+developedlink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fculturelab%2F2010%2F09%2Fultimate-eclipse-photo-the-film-has-been-developed.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Ultimate+eclipse+photo%3A+The+film+has+been+developedlink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fculturelab%2F2010%2F09%2Fultimate-eclipse-photo-the-film-has-been-developed.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869447754/u/60/f/10897/c/749/s/224023769/a2.htm"img src="http://da.feedsportal.com/r/78869447754/u/60/f/10897/c/749/s/224023769/a2.img" border="0"//a

The first advert for medicinal cannabis was aired on television this week in California. Is this a sign of things to come, asks Catherine de Langeimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5a303d/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=%27Medical+marijuana%27+hits+the+small+screenlink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fshortsharpscience%2F2010%2F09%2Fmedical-marijuana-hits-the-sma.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=%27Medical+marijuana%27+hits+the+small+screenlink=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fshortsharpscience%2F2010%2F09%2Fmedical-marijuana-hits-the-sma.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869444912/u/60/f/10897/c/749/s/224014397/kg/170/a2.htm"img src="http://da.feedsportal.com/r/78869444912/u/60/f/10897/c/749/s/224014397/kg/170/a2.img" border="0"//a

It's a staple of cop shows, but the jury's still out on claims that a criminal's identity can be deduced from their modus operandiimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d59966a/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Is+criminal+profiling+flawed+and+disorderly%3Flink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727751.500-is-criminal-profiling-flawed-and-disorderly.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Is+criminal+profiling+flawed+and+disorderly%3Flink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727751.500-is-criminal-profiling-flawed-and-disorderly.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869364018/u/60/f/10897/c/749/s/223975018/kg/63/a2.htm"img src="http://da.feedsportal.com/r/78869364018/u/60/f/10897/c/749/s/223975018/kg/63/a2.img" border="0"//a

People who engage in mental challenges may stave off symptoms of Alzheimer's, but decline more quickly if subsequently diagnosedimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d5530d5/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=%27Brain+training%27+may+just+hide+symptoms+of+dementialink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.900-brain-training-may-just-hide-symptoms-of-dementia.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=%27Brain+training%27+may+just+hide+symptoms+of+dementialink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.900-brain-training-may-just-hide-symptoms-of-dementia.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869311885/u/60/f/10897/c/749/s/223686869/a2.htm"img src="http://da.feedsportal.com/r/78869311885/u/60/f/10897/c/749/s/223686869/a2.img" border="0"//a

With trials showing positive results from the treatment of cancer to alcohol addiction, could illegal drugs be heading for the medical mainstream?img width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d53bac0/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Psychoactive+drugs%3A+From+recreation+to+medicationlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.000-psychoactive-drugs-from-recreation-to-medication.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Psychoactive+drugs%3A+From+recreation+to+medicationlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.000-psychoactive-drugs-from-recreation-to-medication.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869374514/u/60/f/10897/c/749/s/223591104/a2.htm"img src="http://da.feedsportal.com/r/78869374514/u/60/f/10897/c/749/s/223591104/a2.img" border="0"//a

Forget vacuums fizzing with particle activity: a new calculation shows this strange notion isn't necessary after allimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d53babe/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Void+that+is+truly+empty+solves+dark+energy+puzzlelink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.100-void-that-is-truly-empty-solves-dark-energy-puzzle.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Void+that+is+truly+empty+solves+dark+energy+puzzlelink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.100-void-that-is-truly-empty-solves-dark-energy-puzzle.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869374513/u/60/f/10897/c/749/s/223591102/kg/20/a2.htm"img src="http://da.feedsportal.com/r/78869374513/u/60/f/10897/c/749/s/223591102/kg/20/a2.img" border="0"//a

All today's stories on NewScientist.com including: wonder conductors set to cool computers, self-healing concrete, and the world's new longest animalimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d53baba/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Today+on+New+Scientist%3A+1+September+2010link=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fshortsharpscience%2F2010%2F09%2Ftoday-on-new-scientist-1-septe.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Today+on+New+Scientist%3A+1+September+2010link=http%3A%2F%2Fwww.newscientist.com%2Fblogs%2Fshortsharpscience%2F2010%2F09%2Ftoday-on-new-scientist-1-septe.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869374512/u/60/f/10897/c/749/s/223591098/a2.htm"img src="http://da.feedsportal.com/r/78869374512/u/60/f/10897/c/749/s/223591098/a2.img" border="0"//a

A modular quadruped, built from a group of identical robot modules, learns to find new walking styles to cope with the malfunction of a single unitimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d539451/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Shape-shifting+robot+compensates+for+damaged+limblink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19388-shapeshifting-robot-compensates-for-damaged-limb.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Shape-shifting+robot+compensates+for+damaged+limblink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19388-shapeshifting-robot-compensates-for-damaged-limb.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869371571/u/60/f/10897/c/749/s/223581265/a2.htm"img src="http://da.feedsportal.com/r/78869371571/u/60/f/10897/c/749/s/223581265/a2.img" border="0"//a

A venomous medusa-like beast as long as a blue whale has emerged as an unlikely defender of the world's oceansimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d52ee96/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Zoologger%3A+Death+by+world%27s+longest+animallink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19387-zoologger-death-by-worlds-longest-animal.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Zoologger%3A+Death+by+world%27s+longest+animallink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19387-zoologger-death-by-worlds-longest-animal.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869361939/u/60/f/10897/c/749/s/223538838/a2.htm"img src="http://da.feedsportal.com/r/78869361939/u/60/f/10897/c/749/s/223538838/a2.img" border="0"//a

Adding limestone-forming bacteria to the mix could help the concrete seal dangerous cracks on its ownimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d52bfc0/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=For+self-healing+concrete%2C+just+add+bacteria+and+foodlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19386-for-selfhealing-concrete-just-add-bacteria-and-food.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=For+self-healing+concrete%2C+just+add+bacteria+and+foodlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fdn19386-for-selfhealing-concrete-just-add-bacteria-and-food.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869286570/u/60/f/10897/c/749/s/223526848/kg/45/a2.htm"img src="http://da.feedsportal.com/r/78869286570/u/60/f/10897/c/749/s/223526848/kg/45/a2.img" border="0"//a

Tanzania's government plans to build a road through Serengeti National Park, cutting through the migratory route of 2nbsp;million wildebeest and zebraimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d528e7c/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Road+to+cut+off+Serengeti+migration+routelink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727763.800-road-to-cut-off-serengeti-migration-route.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Road+to+cut+off+Serengeti+migration+routelink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727763.800-road-to-cut-off-serengeti-migration-route.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869285250/u/60/f/10897/c/749/s/223514236/kg/65/a2.htm"img src="http://da.feedsportal.com/r/78869285250/u/60/f/10897/c/749/s/223514236/kg/65/a2.img" border="0"//a

Oil drilling in Greenland's Arctic waters began last week, angering environmentalists. But it's nothing compared with the oil and gas rush that's comingimg width='1' height='1' src='http://feeds.newscientist.com/c/749/f/10897/s/d527ea0/mf.gif' border='0'/div class='mf-viral'table border='0'trtd valign='middle'a href="http://res.feedsportal.com/viral/sendemail2.html?title=Arctic+oil+and+gas+drilling+ready+to+take+offlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.300-arctic-oil-and-gas-drilling-ready-to-take-off.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/emailthis2.gif" border="0" //a/tdtd valign='middle'a href="http://res.feedsportal.com/viral/bookmark.cfm?title=Arctic+oil+and+gas+drilling+ready+to+take+offlink=http%3A%2F%2Fwww.newscientist.com%2Farticle%2Fmg20727764.300-arctic-oil-and-gas-drilling-ready-to-take-off.html%3FDCMP%3DOTC-rss%26nsref%3Donline-news" target="_blank"img src="http://res3.feedsportal.com/images/bookmark.gif" border="0" //a/td/tr/table/divbr/br/a href="http://da.feedsportal.com/r/78869356897/u/60/f/10897/c/749/s/223510176/kg/63/a2.htm"img src="http://da.feedsportal.com/r/78869356897/u/60/f/10897/c/749/s/223510176/kg/63/a2.img" border="0"//a