简介：PhysicsprofessorJimAl-Khaliliinvestigatestheamazingscienceofgravity.Afundamentalforceofnature,gravityshapesourentireuniverse,sculptinggalaxiesandwarpingspaceandtime.Butgravity'sstrangepowers,discoveredbyAlbertEinstein,alsoaffectourdailylivesinthemostunexpectedways.AsJimtellsthestoryofgravity,itchallengeshisownunderstandingofthenatureofreality. Thescienceofgravityincludesthegreatestadvancesinphysics,andJimrecreatesgroundbreakingexperimentsingravityincludingwhentheItaliangeniusGalileofirstworkedouthowtomeasureit. GravityscienceisstillfullofsurprisesandJiminvestigatesthelatestbreakthrough-'gravitywaves'-ripplesinthevastemptinessofspace.Healsofindsoutfromastronautswhatit'sliketolivewithoutgravity. Butgravityalsodirectlyaffectsallofusverypersonally-makingadifferencetoourweight,height,postureandeventherateatwhichweage.Withthehelpofvolunteersandscientists,JimsetsouttofindwhereinBritaingravityisweakestandsowhereweweightheleast.Healsohelpsdesignasmartphoneappthatvolunteersusetodemonstratehowgravityaffectstimeandmakesusageatslightlydifferentrates. Andfinally,Jimdiscoversthatdespiteincredibleprogress,gravityhasmanysecrets.…