SciShow Quiz Show: SciShow vs VidCon

[Music] hello everybody and welcome to scishow quiz show where real smart people test their knowledge about all kinds of science and win prizes for two of our supporting patrons on patreon you are confirmed real smart person thank you no injury hurt you know I just was disappointed with how bad the high-five was I thought it's it no one would have known [Applause] I'm your host Michael Aranda and today our contestants are executive producer for VidCon International but also a secretly talented science poet Julie amazed myself go against Hank green who hasn't yet published any science poetry that we know of but has written some excellent music yes sure I mean what's the difference really between a poem and a song later you want do you have opinions on that yeah I do but not now oh I don't okay as a special thank you to our supporters on patreon we've selected two of you at random to win some prizes Hank you will be playing for Melanie Rowland hello Melanie Julia you are playing for Alex Tomlinson hi Alex Tomlinson Stefan show our contestants what they could win today Melanie and Alex y'all are in for a treat you will both be taking home the sign cards from our final round with our contestants final guesses and wagers on them the winner will also receive the I won scishow quiz show pin and some top secret swag from dftba.com but the loser of today's quiz show will of course receive the extra special made with Karen love I lost scishow quiz show pin good luck contestants and back to you Michael okay you guys ready mm-hmm you both start off with 1,000 scishow bucks okay every time you answer a question correctly you will win 200 points do you answer incorrectly you lose a hundred points survive points do you mean scishow bucks yeah they are interchangeable one-to-one currency exchange do you ask that question every episode no no he'd ever says points oh okay change they use different units of measurement for points every yeah every time good yeah next time it you should just say beams okay so you both have one thousand beans oh great beans is actually like a thing that people say up for money right time with beams okay since the first ever vid con Australia is coming up at September now seems like a good time to test your knowledge of Australian wildlife mm-hmm okay so that's the topic of our first round non placental mammals you'll often hear people talking about how Australia is home to the world's deadliest spiders and snakes but even if you manage to avoid those there are plenty of other super dangerous animals to worry about down under like the box jellyfish a few species of box jellyfish have some of the most deadly venom in the world and they just so happen to live in the oceans around Australia as well as the rest of the indo-pacific okay jellyfish stings in Australia are serious business and a lot of beaches have first aid stations where you can grab something to put on the sting there's some evidence that this stuff prevents stinging cells from releasing more venom the question is what should you put on a box jellyfish sting vinegar hydrogen peroxide ethanol or aloe aloe I'm afraid that is incorrect I'm gonna try to vinegar that is correct I feel like I I did that like I got stung by a Portuguese man-of-war once yeah oh is very painful and I think that we did pour vinegar on it hmm so maybe I had first-hand experience but maybe not I've been alive for so long I have no idea what actually happened and what I just made up oh are you what do you mean so long I don't know I for a long time okay you don't have you don't know the half of it no I guess I don't when a jellyfish stings special parts of their cells called nematocysts shoot out a bunch of harpoon-like structures that release venom considering that people get about a hundred and fifty million jellyfish stings every year and some can be deadly you'd think there would be a fair amount of research on how to treat that it's kind of hard to convince people to voluntarily get stung by jellyfish so scientists have a tough time doing the kinds of controlled trials they'd normally use in medical research even so there's pretty clear evidence that some popular home remedies like pouring urine or alcohol in a sting or detached tentacle don't help at all the evidence that vinegar helps isn't that conclusive but researchers think that acetic acid can deactivate nematocysts that haven't shot their harpoons yet in some kinds of jellyfish including box jellyfish okay enough about Australia's terrifying animals the next question is about adorable ones koalas one big problem facing koalas right now is that there's been a massive outbreak of chlamydia dudes they use protection they get symptoms like pinkeye chest infections and something called wet bottom where they can't control their bladders they poop in their sleep right that's none of that they're supposed to okay not chlamydia really not just yeah their metabolisms are so slow that they sleep so much that sometimes they're just like not that different from humans I can confirm okay so anyway chlamydia can also cause infertility which has led to a big decline in the koala population these days about 70% of koalas have chlamydia although the koalas in some areas have it much worse than others with that in mind from 2004 to 2011 more than 4,000 female koalas in a national park in Victoria had hormonal birth control implanted in them what was the problem they were infected with chlamydia which would have been passed on to their babies they were infected with chlamydia and the contraceptive would help clear their symptoms they weren't infected with chlamydia and their population was growing too quickly as a result or they were infected with koala retrovirus another STD which would have made their babies more vulnerable to chlamydia mm-hmm go with that last one cuz it's real weird is incorrect it's right the table turned red my goal means wrong what's the first one that is also incorrect apparently I'm not good at this you weren't infected at all and the population was gladly I thought that was definitely wrong yeah the chlamydia outbreak has affected most populations of koalas in Australia but it hasn't spread to koalas in mount Echols National Park the problem is even though koalas as a species are in decline the koalas and mount Echols have it too easy without chlamydia to hold them back the population exploded and long-term that was really bad news for the koalas see the forest only has two kinds of trees mana gum and black wood trees koalas were living on and eating the manna gum trees and unless Parks Victoria which runs the park did something there would be a massive die-off of the trees and then a massive die-off of the koalas parks Victoria didn't want to just kill a bunch of koalas so in 1999 they tried relocating about 4,000 of them to other forests in Victoria but that wasn't enough to control the population so then they tried giving another 4300 koalas hormonal contraceptives by 2013 the koala population in the park had gone down to 5,000 compared to 10,000 in 2004 apparently birth control works Australia is pretty far from our studio in Montana but our next round is about somewhere even farther away well depends there are areas of space that are closer yeah the space is not that far away from us right now no but which part of space is it I haven't read that far ahead yet let's find out together in 1984 a few days into the first mission using space shuttle Discovery the crew realized they had a serious problem the toilet system had malfunction oh yeah yeah the nozzle is wet bottom the nozzle that was supposed to dump waste water out into space got stuck and there was a 13 kilogram icicle made of pea sticking out of the shuttle tight it's not live I mean how many 13 kilograms icicles of pee have there been in the world so far I'm assuming very few yeah so this is icicle that's on the shuttle if it broke off while the shuttle was returning to Earth mmm it could have damaged the tiles that were meant to protect the shuttle from heat damage hey the crew had to get rid of this icicle as safely as possible so how did they do it did they do a few short engine burns to melt it off use sunlight to melt it off do a spacewalk to break it off or use a robotic arm to break it off I had to hit twice because it was already on I'm gonna say they used the Sun because that seems like the way that he would do it I was wrong fortunately you are incorrect engine blasts I would have used that the Sun they do a spacewalk for a pee icicle I used the robotic arm the icicle was positioned in a way that if it broke off on its own it would have probably hit the heat shielding tiles right over the fuel tank for the shuttles orbital maneuvering system and if you're trying to avoid explosions fuel plus heat is not a good situation at first the astronauts did try to use sunlight to melt the icicle off but it didn't get hot enough the ice reflected too much heat they thought about sending someone out there to pull the ice off but it was too dangerous for an astronaut to maneuver around that side of the shuttle because there were no handhold eventually the NASA team on the ground came up with an idea of breaking off the icicle using the shuttles robotic arm which worked the toilet stayed broken though and astronauts had to come up with some creative alternatives like peeing into bags with dirty laundry and then to soak up the liquid so the rest of the mission wasn't super fun so a lunar month is about 29 and a half days long now that's farther than Australia that's a huge feat to go through all its phases and start over since lunar months don't usually line up with solar months exactly we occasionally get two full moons in one solar month the second one is sometimes called a blue moon which is where the phrase once in a blue moon comes from blue moons aren't that rare though the most recent one was on July 31st 2015 the next one will be on January 31st 2018 gap there sometimes have a solar month with no full moon so the question is when was the last solar month with no full moon boy I have no idea no this is kind of that really is the question I have Matt's gonna be a pure guess so I guess everybody has a 25% chance of girls correct okay was it February 1999 July 1999 February 1608 Wow or July of 1608 wow that's weird that we could choose from 1999 or 1608 but you go ahead and push that push that button you go ahead go first I've got nothing against that idea February 1999 was that an option finally Oh Florida any month with no full moon would have to be a February because all the other months have more than twenty nine point five days everywhere ease with no full moon happened three or four times in a century but they're not always evenly spaced out in the coordinated Universal time zone aka Greenwich Mean Time the last February with no full moon was in 1999 and the time before that was 1961 but 1961 was the first time we had a month with no full moon since 1885 meanwhile the next February with no full moon is coming up next year in 2018 February with no full moon on a leap year is even rarer since the months 29 days have to line up perfectly the last time it happened was in 1608 and the next time we'll begin 2572 so unless we make some serious progress on that anti-aging front none of us are going to be experienced that one okay yeah in 1998 Wow in 1998 astronomers working with the Parkes radio telescope in Australia detected some strange signals pulses of radio waves that were just a few milliseconds long over the next few years other research teams detected more of them although they were only ever detected using the Parkes telescope astronomers called these bursts puritans they seemed similar to another mysterious type of signal called a fast radio bursts but after analyzing the puritans more carefully researchers figured out that unlike fast radio bursts they weren't actually coming from outer space they had a lot of guesses about where these puritans it might actually come from like lightning or signals from planes but in 2015 a group of researchers finally figured out what was causing the puritans was it syphilis was a koala wet bottom so to ask if it was yeah oh sorry wrong disease guy wrong STD over here was it chlamydia was it something to do with koalas in Australia yes actually telescope is in Australia okay so was the interference coming from people at the observatory opening microwave doors people turning on an old TV that used a cathode ray tube an amateur telescope that had secretly been set up nearby or people resetting a nearby Wi-Fi router I'm gonna go with the sorry I'm gonna go with the microwave oven that is correct yeah I think the option was gonna be opening a bag of microwave popcorn just like that first like wave that waft to get butter smell off of the telescope's are just like microwaves are pretty well shielded to keep microwave radiation from escaping you want to cook your food not the kitchen but the researchers thought the puritans might have something to do with the microwaves at Parkes anyway microwave radiation can easily interfere with a radio telescope since radio telescopes also detect signals in the microwave range so the team stuck a cup of water in the microwave and started trying to create a puritan eventually they tried opening the microwave door while it was still on and they got their signal it took a couple of milliseconds for the microwave to turn off when the door was opened and some radiation escaped in the meantime mystery solved we have reached our what are you doing we have reached our final round where our contestants are going to bet any or all of their points on their answer to the following question Julia you have 900 points how many boys do I have Hank yeah you know 1200 points oh but I can tell you that our next round is going to be about animal biology so well you decide how much you're gonna bet we're gonna go to commercial break all right welcome back one of our major problems facing the ocean right now is the bleaching of coral reefs coral polyps have a symbiotic relationship with algae which live inside their tissue and photosynthesize to make food for themselves and the coral and coral bleaching happens when conditions in the ocean change specifically when the water temperature gets too high marine biologists think that one of the main problems is that the algae can't photosynthesize properly in higher temperatures and they start making harmful molecules then the algae and corals separate which makes the coral reef look white because without the algae to give them color the corals white skeletons show through it's a problem because even if the bleached coral recovers there's usually long-term damage it turns out that the same molecules that cause damage and coral tissues also damage humans what do they cause in humans hair loss wrinkles acid reflux or seasonal allergies we heard that it's any of those here comes hank with a guess right should guess down right there on your little car wait what a mess okay got a gun messy hair loss wrinkles acid reflux seasonal allergies those are so different you guys ready yeah reveal your answers oh let's add we've all said the same thing rankles correct it's thought that warmer water makes the algae photosynthesize quickly too quickly they start producing too much oxygen and some of that oxygen ends up in molecules known as reactive oxygen species which are exactly what they sound like oxygen containing molecules that are incredibly reactive reactive oxygen species can destroy other molecules like proteins that cells need to survive so they tend to cause cell damage that's not good for the algae or the coral so they go their separate ways when the ultraviolet radiation from sunlight hits human skin that can also produce reactive oxygen species which can then damage skin cells that's a major cause of a lot of the symptoms of skin aging including wrinkles hey green you are today's winner congratulations which means melanie is getting an I won scishow quiz show pin and that means that alex is getting a nylon oh I'm sorry well you got that last one right yeah rankles I bid good job so of course if you're Australia we hope to see you at VidCon Australia thanks for joining us on this scishow quiz show and thanks to all of our patrons on patreon if you want help support the show you can go to patreon.com/scishow and don't forget to go to youtube.com/scishow and what are you doing to my ear oh I look so good [Music] you [Music]

Channel: SciShow

Views: 94,768

Rating: 4.8338017 out of 5

Keywords: SciShow, science, Hank, Green, education, learn, SciShow Quiz Show: SciShow vs VidCon, julia maes, melanie rowland, alex tomlinson, stefan chin, vidcon, australia, jellyfish, sting, box jellyfish, vinegar, nematocyst, koala, mt. eccles national park, manna gum tree, space, discovery, icicle, nasa, leap year, full moon, parkes radio telescope, perytons, microwave, coral bleaching, wrinkles, reactive oxygen species, algae

Id: KMtqNsqeJS8

Length: 18min 6sec (1086 seconds)

Published: Thu Aug 31 2017