1、July/August 2018 DISCOVER 3 Contents JULY/AUGUST 2018 VOL.39,NO.6KELLIE JAEGER/DISCOVERGot an itch to dive into the essentials of some newsworthy science?Weve got the scratch.In this special issue,we cover a broad range of topics that will capture your imagination.Learn about the Giza Pyramids,Cloud
2、s,Neanderthals,Personality,Pigeons,the Milky Way,the Cloud,Human Speed,Mass Extinctions,Octopuses,the Science of Music,Space Stations,Autonomous Cars,the Standard Model,Teeth and Fractals.SPECIAL FEATURESECTIONStarting on page 28.Website access code:DSD180?Enter this code at:www.DiscoverM to gain ac
3、cess to exclusive subscriber content.ContentsPLUSHotSummerReads P.18CrackingListeriasCode P.94HiddenSalamanderArmy P.24DiscoverSCIENCE FOR THE CURIOUSHUMAN SPEEDNEANDERTHALS CLOUDS FRACTALSSPACE STATIONSMASS EXTINCTIONSPIGEONS PERSONALITYGIZA PYRAMIDSSELF-DRIVING CARS.AND MUCH MORE!Haunting Ghost Wo
4、rlds P.84 The Psychology of Politics P.17SPECIAL ISSUEP.28July/August 20184 DISCOVERMAGAZINE.COMCOLUMNS&DEPARTMENTS6 EDITORS NOTETake a Road TripThis issues special feature section is a map to Everything Worth Knowing.7 INBOXReaders comment on wearable tech and adjusting to an empty nest.20 VITAL SI
5、GNSEye of the BeholderA childs history of bone fractures leads pediatricians to a disturbing conclusion.BY AMITHA KALAICHANDRAN24 NOTES FROM EARTHhe Salamander ArmyYoull never hear or see them,but they keep forest ecosystems strong.BY GEOFFREY GILLER90 PROGNOSISA Double WhammyChemical exposure could
6、 play a role in the development of non-alcoholic fatty liver disease.BY RACHEL CERNANSKY9 THE CRUXScientists sing the praises of an unlikely food source;learn about the connection between neurotics and Brexit;kids are having fun but also getting hurt while riding a popular two-wheeled toy;and more.C
7、HAD LANEON THE COVERHaunting Ghost Worlds p.84The Psychology of Politics p.17Everything Worth Knowing p.28Hot Summer Reads p.18Cracking Listerias Code p.94Hidden Salamander Army p.24COVER:Bryan Christie Design94 HISTORY LESSONSCracking Listerias SecretsScientists are learning more about a hardy micr
8、obe that can live years in soil and water,survive deep freezes,and sometimes kill humans.BY CLAIRE PANOSIAN DUNAVAN98 20 THINGS YOU DIDNT KNOW ABOUT AntsSome are slaveholders,others sip blood and a few jump backward like nobodys business.BY ASHLEY BRAUN77 OUT THERE:BONUS ASTRONOMY SECTIONLearn how C
9、hilean observatories play a five-star role in education and outreach,and take a tour of the nonexistent worlds that astronomers have thought theyve discovered over the years.Read about the hidden lives of salamanders and their critical role in natures food web on page 24.CALL CONSUMER CELLULAR AT(88
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16、If youre not completely satisfi ed within 30 days,cancel and pay nothing.AARP MEMBER BENEFITSAARP members receive a 5%discount on service and usage every month.BRING YOUR OWN PHONEWith our free SIM card,you can even bring your own phone if youd like!LOW PRICESUnlimited talk and text is just$25/month,plus choose a data plan that fi ts your needs.VARIETY OF PHONES&DEVICESSelect any device,from fl ip phones to smartphonesincluding the latest iPhones.$SAVINGSOFMAY 15 THRUJUNE 30,20186 DISCOVERMAGAZI