| 留言内容： |
‘Dysonspheres’weretheorizedasawaytodetectalienlife.Scientistssaythey’vefoundpotentialevidenceкракенмагазинWhatwouldbetheultimatesolutiontotheenergyproblemsofanadvancedcivilization?RenownedBritishAmericanphysicistFreemanDysontheorizeditwouldbeashellmadeupofmirrorsorsolarpanelsthatcompletelysurroundsastarharnessingalltheenergyitproduces.“Oneshouldexpectthat,withinafewthousandyearsofitsenteringthestageofindustrialdevelopment,anyintelligentspeciesshouldbefoundoccupyinganartificialbiospherewhichcompletelysurroundsitsparentstar,”wroteDysonina1960paperinwhichhefirstexplainedtheconcept.https://kraken-18.atkraken25.atIfitsoundslikesciencefiction,that’sbecauseitis:DysontooktheideafromOlafStapledon’s1937novel“StarMaker,”andhewasalwaysopenaboutthat.ThelatescientistwasaprofessoremeritusattheInstituteofAdvancedStudyinPrinceton,NewJersey.Still,comingfromathinkerwhosomeinthescientificcommunitysaymighthavebeenworthyofaNobelPrizeearlyinhiscareer,theconcepttookholdandthehypotheticalmegastructuresbecameknownasDysonspheres,eventhoughthephysicistlaterclarifiedthattheywouldactuallyconsistof“aloosecollectionorswarmofobjectstravelingonindependentorbitsaroundthestar.”Inhispaper,DysonalsonotedthatDysonsphereswouldgiveoffwasteheatdetectableasinfraredradiation,andsuggestedthatlookingforthatbyproductwouldbeaviablemethodforsearchingforextraterrestriallife.However,headdedthatinfraredradiationbyitselfwouldnotnecessarilymeanextraterrestrialintelligence,andthatoneofthestrongestreasonsforsearchingforsuchsourceswasthatnewtypesofnaturalastronomicalobjectsmightbediscovered.“Scientists(atthetime)werelargelyreceptive,nottothelikelihoodthataliencivilisationswouldbefoundtoexist,butthatasearchforwasteheatwouldbeagoodplacetolook,”saidGeorgeDyson,atechnologywriterandauthorandthesecondofDyson’ssixchildren,viaemail.“Sciencefiction,from‘Footfall’to‘StarTrek,’tooktheideaandranwithit,whilesocialcriticsadoptedtheDysonsphereasavehicleforquestioningthewisdomofunlimitedtechnologicalgrowth.” |
