SciShow Quiz Show Eons Edition

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SciShow

Keywords:

SciShow,science,Hank,Green,education,learn,bees,killer bees,airplanes,windows,pressure,frit,urea,diurea,grease,kallie moore,blake de pastino,hank green,eons,quiz show,game show,game,flap track fairings,drag,wave drag,anit-shock bodies,area rule,windshield,astronomy

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[Music] hello and welcome to scishow quiz show I'm Hank green and for the first time ever I'm hosting scishow quiz show and I am the one who gets to ask the questions and know all of the answers and you can't have them the s key will be the asker that's right I know all the answers to every one of these questions Alex Trebek up here today's contestants are Callie more the curator of the University of Montana fossil collection and real-life miss Frizzle and we also have Blake de pastino the editor-in-chief of scishow and real life Indiana Jones oh I do have a work-related whip in my office I didn't know about that and now I have a lot of questions but we'll get to those after the other Halloween costume okay I don't know if that's work-related because it's an office [Laughter] we'll explain and the reason we have all of us and my Quran is not here today is because we are all the hosts of eons a YouTube channel that's doing really well I love what we're doing there and there every episode comes out I'm always really excited to watch it's a ton of fun to do ya know so thanks thanks for working with me on that and I'm happy working with you on it funny anecdote about that show if I can interject man I was just talking to Nick Jenkins who's the director of yawns and I said hey I'm going on scishow quiz show and he said who you're competing against and I said Kelly and he went good didn't know yeah so I think I get the sense I'm gonna have my own livery hand it to me in this I don't know we're trying to avoid your areas of expertise but like yeah that's for me that's a lot yeah what I don't know so but if we can impress people with our knowledge maybe they'll go watch it yawns okay you could do think it tried that way too I guess I also want to say thank you to our patrons on patreon we have chosen two of you at random to get prizes for you were representing those people Callie you're playing for Dennis Kibler and like you are playing for Christina Bialik so if you were lucky we could get stuff either way no matter whether you win or not you're just playing for pride there is a loser yeah and it will be one of you now Stefan show our players what they can win oh boy here we go again Denis and Christina it's time to learn about what you can win today everyone's gonna be taking home the signed cards from our final round with our contestants final guesses and wagers on them the winner of today's quiz show will get an I won scishow quiz show pin and some top secret SCI show swag from dftba.com and the loser of the show will be able to soothe their broken dreams with a pin that declares them the loser of the show the anticipation is killing me so let's get on with it alright so the way this works is both of you start out with a thousand scishow bucks for every question you get correctly you'll get 205 up some more and for every question you get incorrect you'll lose a hundred scishow bucks and I have no idea why this is the way that I work what if I refuse to answer you cannot refuse 10 okay can I challenge Kelly to a dance-off instead no no okay if they are their lifelines do it like Game of Thrones where you have two people fight for your guilt or innocence and then whoever wins no you can't get either okay so this is a question asked answering yeah you gain okay just two because yeah we just don't want we don't want people gaming the system so you would have to answer the question we have to hit the thing first you can if you want to okay but yeah it's a tap light from the 90s and don't let a cat sticker on the bag so we've done a lot of scishow episodes about the topic of our first round and that's mostly because of Blake because every time you come back from traveling you have a bunch of questions that you want to answer and then you answer them and you write scishow episodes about them but somehow there's still a few aspects of the science of travel that we have not covered and that is the topic of this first round okay number one questions about airplanes you might have noticed that plane wings have these little pods sticking out underneath them they look a little bit like engines but that's not what they are they are called flap Trac fairings because they contain the mechanism that moves the flaps on the wings but they also have another important job question is what else are flap tract fairing is used for a reserve fuel tanks be reducing drag sea warming up the wings to prevent ice buildup or D keeping the wings from bending to be correct they're there to reduce drag which is what most of the plane is this is Blakes round re yeah I was thinking about something else I was lost in your eyes the answer is B reducing drag most commercial jets cruise at around 4/5 the speed of sound which is where aerodynamics can start to get even messier than usual that's the point where shockwaves start to form around the plane because even though the plane isn't moving faster than the speed of sound some of the nearby air gets pushed faster than the speed of sound these shockwaves lead to what's known as wave drag which is a really strong form of drag that you want to minimize that's why we have flap track fairings also sometimes called anti shock bodies according to a physics principle called the area rule when you're traveling close to the speed of sound having abrupt transitions between bigger and smaller cross sections of the plane leads to much more drag and that's bad in commercial jets the most abrupt transition is between the area by the wings which is pretty big in the area of the plane just behind the wings which is much smaller so the flap track fairing stick out of the back of the wings to give that cross-section a little more area and a little less drag number two this next question is about something weird on the inside of planes airplane windows are actually made up of three panes of glass there's the one on the inside which is basically a cheap layer that is meant to be the one that gets all scratched up and then there are two on the outside of the plane that are both built to withstand all the stress that comes with being an airplane window it's a hard job but have you ever noticed that there's a little hole at the bottom of the window through the two inner panes of glass why is that there eh to equalize the pressure with the inside of the plane be to help fire fire just break the window in case of an emergency see to increase the overall strength of the window or D to give the windows some flexibility but the temperature changes a correct yeah that's cool yeah you know what I'm like blowing up like a balloon in there right although they are all equally plausible answers question well I mean like why would a firefighter need to break like a planned M dough they have like so you can like a baby very big [Laughter] the answer is a to equalize the pressure with the inside of the plane having a hole through a window might seem strange because airplanes are one of those things that you really want to stay sealed but there's a good reason for it even though the outer two panes of glass are designed to withstand the difference in pressure between the outside and inside of the plane the middle pane is meant to be a backup in case the outer one fails but if both outer panes have the same stresses all the time if the outer pane breaks the middle one probably will - by drilling a hole through the inner and middle layer the air in the cabin can get in between the outer and middle panes of glass meaning that only the outer pane of glass has to deal with a pressure differential then if the outer pane cracks or breaks the middle one is basically good as new and it has to take over and the tiny hole isn't really a problem it's way too small to depressurize the whole cabin all right number three enough about planes let's talk about cars in almost all cars there's a black band running around the edge of the windshield and windows which usually transitions into little black dots before you get to just plain glass all that black stuff is called frit usually there's a bunch of these little dots at the top of the windshield to where they help block some sunlight and make it easier to see but the band around the edge of the glass also has another purpose what is it a blunting the edges of the glass so it's less sharp be keeping the glass from shattering as easily see sealing on a UV protective coating or D keeping the glue on the glass from degrading see I also say see you both with me know that's totally how it works I don't know what to do in that situation except that you both lose 200 points it was unnecessary blank answer it is d to keep the glue on the glass from degrading what if I don't accept that answer well we're gonna have somebody tell you all about it right now okay the answer is d keeping the glue on the glass from degrading frit is made from a type of ceramic paint and stare for a few reasons one is pretty simple it helps the adhesive stick to the glass your windshield and windows don't fall out of your car that's important but even if the glue stuck just fine the UV light from the Sun could degrade it over time so the frit helps block out that light the thing is when the glass is being bent into shape during the manufacturing process the band heats up much faster than the rest of the glass which can distort what you see through it the dots between the band and the glass helps smooth out that distortion plus they make the transition a little less ugly so the situation is I said 200 but I met 100 you both lose 100 points I'm just not very good at remembering how their rules go it's my first time it's round 2 now this one is not so much about a subject as it is about a tendency the tendency for scientific words to sometimes be extremely entertaining all right so question number 4 sometimes terms in science are just unpronounceable jargon to anyone outside of the field but other times scientists tell it like it is the technical terms are very descriptive and also sometimes kind of hilarious that tends to happen a lot in astronomy actually researchers are often trying to describe something that's just very hard to explain without using words like spaghettification which is the term for the stretching and squeezing that can happen inside a black hole so the question is which of the following words is not a technical term in astronomy a sloshing be seeing see fuzzball or D gunk washing some fuzzball got a sloshing swashing is a thing sloshing is a thing okay now I can answer your appropriate time and you have seeing slosh ball or gunk fuzzball or gunk they also yeah I'm going to say seeing seeing is a technical term in astronomy the answer my friends is gunk and now we will find out why the answer is D gunk in astronomy sloshing refers to pockets of cool gas sloshing around in galaxy clusters the term was coined in 2001 by a team of researchers at Harvard and since then astronomers have been finding more and more examples of it seeing it describes the clarity of the image you're getting with your telescope so if it's a clear night and there's not much turbulence in the atmosphere interfering with the view you'd say there's good seeing fuzzball is a concept from string theory the idea that the universe is made up of tiny vibrating strings in some versions of string theory black holes are called fuzz balls the basic idea is that instead of having a singularity at the center where gravity becomes infinite inside of a black hole is a bunch of these strings gunk on the other hand is not an official thing in astronomy at least not yet number five the next question is about diarrhea that's dye urea a type of molecule that gets us name from the fact that it's too connected molecules of urea is the funny name diarrhea is used all the time as an industrial chemical and weirdly enough the name also have to be pretty appropriate for what it's used for so what is it used for a as a thickener in Greece B to melt ice on planes C to clean septic tanks D to dissolve strong adhesives the kind of it glues your glass in place and you need that that fret there too anyway are you done yeah see see to clean septic tanks all right so with a thick nuran grease to melt ice on planes or to dissolve strong adhesive the answer is as a thickener in grease you want to put a bunch of diarrhea in there to make it thicker they give you real like a lot of animals have urea in their pee that's not my septic tank yeah yeah she could yeah anyway now we'll find out more about that the answer is a it's a thickener in Greece yep there's diarrhea in industrial lube that's fun to say grease is generally made up of two main components a base oil and a thickener diarrhea is often used for the thickening part and so are other polyuria x' molecules that have multiple connected ureas a big problem with grease is that it can react with oxygen and degrade over time and if there are metallic elements in the grease they can act as catalysts making those reactions happen faster many thickeners have metal in them but polyuria is don't and that's why polyurea grease is so useful it lasts much longer without degrading now you might have noticed that none of these questions I've so far had anything to do with natural history or paleontology or even animals and that was on purpose for obvious reasons because we don't want you to just know all the answers but this last question the one where you get to bet as many points is you would like as long as you have them is about an animal and that's all I'm gonna tell you about it now you will place your bets and while they're doing that we'll go to commercial break if it works which it usually doesn't you guys pointed up all right Africanized bees aka killer bees have a strange history I'm gonna tell you all about it right now they were bred on purpose in Brazil back in the 1950s as a hybrid African and European be people are crazy the European bees were gentler but they did not thrive in the South American climate while African bees did well but were more aggressive the hope was that the hybrid bee would thrive and stay gentle except it did not lose the aggression and then in 1957 a bunch of hybrid bees escaped the lab ever since they've been spreading throughout South America and all the way up into the southern US these bees are so aggressive that hundreds of them will swarm people at once and about a thousand people have died from their stings over the last six decades but the name Killer Bee doesn't actually come from their history of killing humans it's from another unfortunate behavior so what do they do is it that they they spread a chronic bee paralysis virus B they take over nests of European bees see their swarms damage crops or D they kill entire herds of cattle to get to the flowers in their pastures you got to read it on the card though you both get to see if you were right or wrong oh I would like to preface this mm-hmm by saying this is unfair because Kelly knows things and the fun fact about me is I know zero facts through your head it does not stay in there yeah exactly yeah well every time you learn something new something else has to like get out of the way you know it just pushes old facts out I have the same you like it that's right that's why I've stopped learning things have you guys done Japanese Hornets on this is so awesome these little cute little honeybees attack these Hornets and they surround it and they vibrate bake the Hornet I was hoping that was sorry this is good no that's a good way to kill a Hornet yeah not how I do it but just to get our abacus wouldn't probably wouldn't work as well for me so now display your answers to your cameras now we've got B question mark or the cattle thing without a question mark I have to tell you Blake you're wrong cally is right there you go do this they came back sorry take over the nests of the European bees they killed the bees kill bees they don't kill people but that's not what they're called killer bees the answer is B they take over nests of European bees the name killer bee is really a bad translation of what the Brazilians called these hybrid bees they're known as assassin bees and Portuguese and that's a much better description of what they do to European bee nests small swarms of Africanized bees will start hanging out near the nest exchanging pheromones and sharing food with the Europeans apparently the European bees don't really notice what's going on because eventually the Africanized bees will take over kill the Queen and establish their own queen as head of the hive if it's true that getting swarmed by hundreds of them can be deadly for humans that's because the bees are really defensive of their nests they aren't seeking out and destroying us the European bees aren't as lucky thank you to both of you and for all of you for joining us here on scishow quiz show we hope you enjoyed the ride please remember to take all of your personal items with you and if you want to see more from all of us you can see our channel which is all about the history of all of life on Earth like how our planet might once have been purple was a recent episode you can check out PBS Aeons at youtube.com slash yams which is a pretty freakin great YouTube URL if I do say so myself [Music] you [Music]

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