As"Alone"entersitsfourthseason,thecompetitionseriesshakesthingsupwithanewtwist:thecontestantsaredroppedoffinaremotelocationaspairs.SevenpairsoffamilymemberstraveltoaruggedregionofBritishColumbia,wheretheyareseparatedanddroppedoffmilesapartfromeachother.Eachplayermustnavigatethewildernesstolocatehisorherpartner.Oncereunited,thelovedoneshavetocreatetheirownsheltersandforagefortheirfoodwhileovercomingroughweatherconditionsanddeadlypredators.Theyhavenothingmorethanthecontentsoftheirsmallbackpacksand10toolssplitbetweenthemtohelpwiththeirsurvival.Theyalsohaveenoughcamerageartorecordtheirexperiencesbecause--asinthepast--thereisnocameracrew.Thelastduostandingattheendoftheseasonisdeclaredthewinnerandtakeshomethe$500,000grandprize.“美丽科学”系列视频利用先进的摄影技术和动画制作为孩子们展现科学之美在此基础上美丽科学呵护和激发孩子对科学和艺术的兴趣让孩子用科学的思维考虑问题用艺术的视角看待世界\r\n这些视频的拍摄采用了包括显微、微距、热成像、高速、延时等摄影技术它们不仅展现不同视角下科学的神奇与美丽也能够使得孩子们更轻松的理解科学例如红外热成像技术可以帮助孩子更好的理解各种热现象🍵JohnWoodleftthepiecesofabrokencivilisationbehind,togobacktohisrootsinthewoodland,afteraviruspandemicstrucktheworld.Residinginasimplecabin,heonlywantspeaceandtoliveinharmonywithnature.Comingfromalonglineoftimbermen,hejoinedthearmyandservedasasoldierformanyyears.Rebellingagainsthissuperiorsforkillingciviliansundermartiallaw.Johnfeelshegothisownwifekilledwhensavinghundredsofinnocentciviliansfromcertaindeath.HiswifeexecutedpointblankasretributionforJohn’sdisobedienceandsupposedheroicacts.Now,ayoungwomannamedMariaJohnsonhasescapedapandemicresearchlab.She’sbeenpartofexperimentstofindacureforthestillragingvirus.Carryingthepotentialcureinherblood,sheishuntedbyprofiteersandmercenarieswhoknowshersecret.CominguponJohn’scabininthewoods,MariaisinstinctivelytakenintoshelterbyJohn.Hewantshertorecoverfastandleave,butbylearningher...🐟欢迎来到中国四川省卧龙大熊猫保护与研究中心卧龙科学家在培育大熊猫的技术方面取得了巨大的进展：去年该基地培育出了17只熊猫幼仔其中包括5对双胞胎这是打破历史记录的一个壮举纪录片将向我们讲述卧龙的工作人员如何照顾、培育、抚养并准备将可爱的大熊猫放归野外以避免这个物种灭绝🔱，
让人窒息的紧张感在空气中弥漫着应该是高兴还是害怕呢也许两者都有吧.你不用搬走你们的具体情况我都跟爸妈说了他们没有什么问题今天晚上大家一起在家吃顿饭爷爷奶奶和三个宝贝们也会回来‍👧Ⓜ，