Can soap propel a leaf boat? (2 Truths & Trash)

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  • Опубликовано: 27 окт 2024

Комментарии • 188

  • @JaDroppingScience
    @JaDroppingScience  Год назад +29

    Thanks for watching! Here's a link to the playlist with all episodes: ruclips.net/p/PLOEAbE8LkxoBvlAjxk6PofT_qgjQdluVT

  • @damiencouturee6240
    @damiencouturee6240 Год назад +224

    The dish soap can be used for a cool party bet too. You pour some pepper in a bowl of water and bet people to get all the pepper out of the middle, they can use anything in the house. They go for spoons, paper towels, cups, but no one ever thinks of dish soap. Just coat your finger in a bit of the dish soap and stick it in the middle of the bowl, all the pepper is pushed away from the middle just like the boat is propelled forward.

  • @SytanOfficial
    @SytanOfficial Год назад +212

    The egg one was a giveaway for me, as you can see the embossed brand on it when you take it out and squish it haha

  • @JaDroppingScience
    @JaDroppingScience  Год назад +67

    Thanks to everyone who joined the premiere! I think I will add a 10 second pause to give people more time to vote and then edit that out later. I meant to leave the chatroom open longer, but if you wanted to provide feedback, you can join my discord: discord.gg/HFdJdcBKVK

  • @chillyconmor
    @chillyconmor Год назад +166

    my silly ass was thinking "wow is he trying to trick morons or something?" and was confident everything in round 3 was fake

    • @solsystem1342
      @solsystem1342 Год назад +26

      To be fair I've seen the soap boat trick. Essentially the leaf is riding the boundary between the water and soapy water as it expands

    • @solsystem1342
      @solsystem1342 Год назад +14

      The reason candle flames are hollow is that the reaction is caused by a mixture of oxygen and fuel. Near the candle any oxygen that could get there was used already used up. Far from the candle the fuel will have burned already. With the hot air rising it creates this beautiful "flame" shape we all know and love on its boundry

    • @theofficialtastynacho0898
      @theofficialtastynacho0898 Год назад +4

      wait you actually believed that fire isn't hollow or at least has a not so bright center?

    • @chillyconmor
      @chillyconmor Год назад

      @@theofficialtastynacho0898 yeah

    • @firstname405
      @firstname405 6 месяцев назад

      It's okay to not know something ​@theofficialtastynacho0898

  • @LadyJuse
    @LadyJuse Год назад +51

    Round 1 - C, because of previous water bottle draining videos
    Round 2 - A, because B sounds real and I grew up around a lot of pine trees
    Round 3 - B, because I remember seeing A working for paper and I know candle flames are indeed hollow

  • @pixelpuppy
    @pixelpuppy Год назад +24

    "I just swapped this [item] with [item] when you weren't paying attention"
    but I was paying attention!!

    • @gsrujan
      @gsrujan Месяц назад

      Yeah! He cuts the video and says "you weren't paying attention" or "you weren't looking.

  • @elfakyn
    @elfakyn Год назад +11

    I really appreciate that you're showing how you made the fakes.

  • @the_ant_guy
    @the_ant_guy Год назад +17

    im surprised the syrup even SOMEWHAT worked!!

  • @bluemario8361
    @bluemario8361 11 месяцев назад +3

    Im a tennis player and i know that cold tennis balls bounce less high and in the colder seasons they are less bouncy than in the summer

  • @sarahb3nyakar
    @sarahb3nyakar Год назад +11

    Genuinely one of the best ones so far. Incredible video!

  • @reimuartistics
    @reimuartistics Год назад +5

    "Can I have a bouncy egg, sir?"
    Yes, one rubber egg doused in maple syrup coming right up.

  • @barneylaurance1865
    @barneylaurance1865 2 месяца назад

    I didn't recognise it at first but the bottle in shot glass system is the same as those automatic water dispensers for animals. If you replace the shot glass with a much larger open dish an animal can drink from it, and nothing spills out - the bottle just empties a little bit to maintain the level each time the level of water in the dips below the bottom of the water allowing some air to go into the bottle.

  • @dudebladeX
    @dudebladeX Год назад +9

    First one I got totally wrong. That light thing didn't look right to me, and I thought something else was added to pull off that effect. Massive props to whoever thought of putting it next to regular water to make it look fake. The second one I thought everything was legit. Not only did I feel ike we were due for a clip where everything was legit, the logic behind the tennis ball sounded kinda legit to me, I had heard of the pinecone thing before, and I felt like I was able to logic the tangerine one to me.
    At least I got round 3 right. But I feel like round 3 is the "Throw them a bone" round at this point.

  • @chessboy-hf6bx
    @chessboy-hf6bx Год назад +118

    Bagel bites

  • @mrlightbringer4623
    @mrlightbringer4623 Год назад +2

    I love the effort in his content

  • @CarcoDev
    @CarcoDev Год назад +1

    The candle one blew my mind. Great video!

  • @masterweird
    @masterweird Год назад +5

    this really needs to become a real tv show lol

  • @lethaldumpster2699
    @lethaldumpster2699 Год назад

    Atmospheric pressure? Sure, but I would more call it to be the pressure from within the bottle. In ez explanation, you need air to replace the water inside the bottle, for the water to spill out. But the air can't get under the bottle opening to float up, because its blocked by the cup of water. Gravity is pulling down on the water, causing a negative pressure within the bottle which will keep the water sucked in unless the water can be replaced with air. It's like taking an empty cup and pushing it into water upside down. The cup will still be full of air because it can't get around to the outside of the cup to let water replace it.

  • @Thesnakerox
    @Thesnakerox Год назад +1

    The "None were fake" and "All were fake" options are actually genius, because they subtly force the viewer to think critically about the videos using their actual understanding of the science

    • @RmationYT
      @RmationYT Год назад +1

      I hate those option, it makes my Brain work

  • @handlesarecringe957
    @handlesarecringe957 9 дней назад

    The candle one makes sense when you consider what flames are. Fire occurs when a substance is hot enough to vaporize and react with oxygen. This can only occur where the vapor and oxygen meet.

  • @Ninja20704
    @Ninja20704 Год назад +3

    I’m still waiting for when where the correct answer was none or multiple. Still very fun video.

  • @TheSoulEcstatic
    @TheSoulEcstatic Год назад +1

    That first one had me stumped lol. I knew quinine glowed under UV but didn't know which of the other two was fake.

  • @memeemporer11
    @memeemporer11 Год назад +2

    2/3 I'll take it, the first one got me

  • @leonlee8524
    @leonlee8524 Год назад +4

    You're the only RUclipsr who's allowed to lie to me lol

  • @octocatpug2327
    @octocatpug2327 Год назад +1

    I knew that a was wrong as soon as you said it because we had a tennis game in December, it was freezing cold and when we grabbed the balls, they were so non bouncy we had to cancel the game.

  • @hipeopleidkwhatisgoingon
    @hipeopleidkwhatisgoingon 11 месяцев назад +7

    spoiler shield 🛡️

  • @Tigewew
    @Tigewew Год назад +1

    Swapped it when i wasnt paying attention? you mean when you made a cut in the video?

  • @Incinares
    @Incinares Год назад +1

    The chug jug is real LMFAO

  • @HotelPapa100
    @HotelPapa100 Год назад +1

    The tennis ball thing is not about the stiffer material, but about the reduced air pressure inside.

    • @Jwellsuhhuh
      @Jwellsuhhuh Год назад +1

      Yeah a stiffer material would mean less KE converted to deformation energy and hence a more elastic collision that will bounce it higher

  • @camdynbrozowski5994
    @camdynbrozowski5994 Год назад +1

    This is episode 2,not 3

  • @Slorck
    @Slorck Год назад +1

    Yes fire star I would love a part two

  • @carenrose6002
    @carenrose6002 11 месяцев назад

    Round 1: a) true, but not sure why, b) true (peanut butter also looks cool under black light), c) false, there'd need to be a way for air to get into the bottle for that to happen
    Round 2:
    a) false, increased stiffness will make it bounce *less* because it deforms less, so can return less energy in the bounce
    b) true, I think, probably because there's air in the cells (holes, not plant cells) of the skin
    c) I dunno, seems true because all open pinecones I've seen are dry and all closed ones are on the tree still, so maybe?
    Round 3: a) true, similar to the soap on a plate full of milk trick, b) false, that's just a fidget toy, c) true
    Edit: nice!

  • @AstonishedByTheLackOfCake
    @AstonishedByTheLackOfCake Год назад +1

    as a physics student I have yet to guess wrong on one of these

  • @jaycampbell5145
    @jaycampbell5145 4 месяца назад +1

    Season 2 episode 3 ????!??? Glass Animals reference??!!???!?

  • @wargreymon2024
    @wargreymon2024 Год назад

    This is a very good one.

  • @MillySilly-1
    @MillySilly-1 Год назад

    the first one was tricky cus I assumed the plastic would melt after the water was brought to a boil

  • @TotRuAv0015
    @TotRuAv0015 Год назад +1

    Everybody is talking about egg but how the hell a leaf can move with a soap

    • @remitheowl9864
      @remitheowl9864 Месяц назад

      This comment is over a year old and no one has answered it, which is upsetting to me. Dish soap disturbs the water's surface tension in a way that it can propel things forward. It works the same way if you have water with a thin layer of grease or oil on it and let a single drop of soap fall into the center, the oil/grease with "run" from the soap

  • @pixelhavoc4950
    @pixelhavoc4950 Год назад

    I immediately knew the tennis ball clip was fake. Elasticity is achieved by a balance of flexibility and rigidity. Ping Pong balls are completely rigid, but bounce because they're lightweight and hollow, meaning that they usually take more of the force than the thing they're impacting (because they're working on hard surfaces). Tennis Balls are designed for use outside in the grass and dirt which is much softer and have to go a lot further, so they're made of rubber, a material which is decently rigid and flexible, and then pumped with air, which means that they have to maintain a certain size. This means that the balls can squash when they initially hit the ground, but then the compression force causes a pulling force on the outside, causing the ball to compress in the other direction, thus launching it back off the ground.

  • @revnren
    @revnren Год назад

    wow, not only did that maple syrup solidify that egg, it also gave it serial number!

  • @nurajannattaslima9853
    @nurajannattaslima9853 9 месяцев назад

    1:21 exactly my thought process lol cant believe i was right

  • @OptimusPhillip
    @OptimusPhillip Год назад +1

    Round 1: I _think_ A might be fake. I honestly have no idea. C does feel right, though. (I had to fucking say it, didn't I? The only one I was certain was real was the fake one. This is why I got a C in thermodynamics and fluid mechanics).
    Round 2: From what I recall, the polymers in the tennis ball should in fact stiffen when chilled. This will prevent the ball from deforming, which would absorb some of the energy, and thus the cold ball will bounce higher. I'm less certain about the pine cone, but I do believe that the openness of a pine cone depends on moisture, so that also sounds right. The tangerine, however, is still mostly water, so should retain its buoyancy. So I'm guessing B is fake. (I'm just... I don't... how does that work?)
    Round 3: Both A and B feel too fake to be fake, and I don't know what to believe. C actually sounds reasonable, though. So I'm gonna vote E, both A and B are fake, with utter confidence that I am wrong. (I'll take half credit!)

  • @crazybird199
    @crazybird199 Год назад

    I only got the first one wrong, which isn't a bad score for me with these newer videos

  • @Jwellsuhhuh
    @Jwellsuhhuh Год назад

    Round 3 just clipped a texture in real life lmao

  • @Yezpahr
    @Yezpahr 6 месяцев назад

    This is an interesting approach, forces people to think.

  • @alphazero924
    @alphazero924 Год назад

    "I swapped it out when you weren't paying attention" Don't fucking put this on me. I was paying attention the whole time. You were the one who put in a cut

  • @CliffThePerson
    @CliffThePerson Год назад +1

    Bro the last one💀

  • @pncka
    @pncka Год назад

    Seems like just a month ago you only had 30k subs

  • @schrodingerskatze4308
    @schrodingerskatze4308 Год назад

    I knew the dish soap thing because we did that in school a few times :)

  • @TimTimTimTimTimTimTimTimTim
    @TimTimTimTimTimTimTimTimTim Год назад

    For round one you almost got me until the third fact which I absolutely knew was fake

  • @UnoPlays7993
    @UnoPlays7993 Год назад

    When he used the soap did he use Hand wash or Dish wash?

  • @halowisp8133
    @halowisp8133 Год назад

    the leaf gone brum brum

  • @MetronaJ
    @MetronaJ Год назад

    The water one I figured cause I know for a fact that there needed for it to be a hole for it to work like that

  • @Insert_Creativity_Here
    @Insert_Creativity_Here Год назад +1

    I only got the stupid obvious last one right 😔

  • @alexdeiongh7267
    @alexdeiongh7267 Год назад

    round one: fail
    round two: correct
    round three: correct

  • @mihaipeia6890
    @mihaipeia6890 Год назад

    Personally, I find the "d" and "e" options to be annoying as it makes me think less of the solution under the impression that nothing was fake/multiple were fake

  • @pkpittoo795
    @pkpittoo795 Год назад

    Only one I got wrong was the first because I had no clue you could boil water in a microwave

    • @solsystem1342
      @solsystem1342 Год назад +1

      Wait really? /gen
      Water is THE thing microwaves are designed to heat (we make them to produce a particular size of microwave which water absorbs really well, they could technically be made to heat any chemical). That's why they fail to heat ceramic plates and other things with a low water content.

  • @Deakytonk
    @Deakytonk Год назад

    I got 1 of 3 is that still make me smat?

  • @undergroundmonorail
    @undergroundmonorail Год назад

    "Bigger than before" :)

  • @rat_king1236
    @rat_king1236 Год назад

    Soap can propel a leaf?!

  • @Andy-qv9tb
    @Andy-qv9tb Год назад

    OK Thanks :)

  • @mattgolden100
    @mattgolden100 Год назад

    1:49 “and that means this video is fake”, why even include options D/E if you are inferring there’s always one fake?

  • @josemarialaguinge
    @josemarialaguinge Год назад +1

    I only failed in the first one.

  • @Demonz2000
    @Demonz2000 Год назад

    Ayy got all of em right

  • @edekolechowski
    @edekolechowski Год назад

    I got 2/3 right, not bad

  • @Hinodei
    @Hinodei 10 месяцев назад

    "Decide which video is real or fake"
    :proceeds to cut the video so we cant analyze the video.
    So instead of analyzing evidence and deciding if its fake or real with logic we are just guessing with a bit of logic

  • @HolidOreo_
    @HolidOreo_ Год назад

    C (I saw the short), A, B (Also saw the short).

  • @Ahyes1
    @Ahyes1 Год назад

    How does soap push against water it should dissolve

  • @Bananamen11
    @Bananamen11 Год назад

    Saran wrap and ice

  • @micoweve
    @micoweve Год назад

    i love this

  • @henrycardona2940
    @henrycardona2940 Год назад

    Wow I was one for three.

  • @Allen-R
    @Allen-R Год назад

    C..? (was confused how he did that one. the hole-switch was a nice idea)
    B (dunno why I thought A was legit, thinking about it now, that was stupid)
    B seemed a bit too fake

  • @keiyakins
    @keiyakins Год назад +1

    1: C. You had a hole in the other end of the bottle. It would probablt still drain eventually but it wouldn't drain smoothly like that.
    2: A, it should be the opposite, from what I know of tennis competitions
    3: B. It just feels unbelievable.

  • @TheAllMightyGodofCod
    @TheAllMightyGodofCod Год назад

    No matter what you say, I am not putting my eggs in mapple syrup over night!
    That thing is expensive! And of eggs are expensive, imagine maple syrup!!!!!

  • @castle9165
    @castle9165 Год назад

    I guessed C because you can’t see the top of the bottle and it wouldn’t make sense not to show that.

  • @nitrogamer7728
    @nitrogamer7728 Год назад

    first video where I got 3/3 right

  • @xian2themax
    @xian2themax Год назад

    All three right pog

  • @neo_ds
    @neo_ds Год назад

    Yey I got the all right!

  • @broncokonco
    @broncokonco 9 месяцев назад

    I want a soap powered jet ski

  • @phoneshopmengheng-hl7vf
    @phoneshopmengheng-hl7vf Год назад

    [C][A][B]

  • @Lionheart-mg7qf
    @Lionheart-mg7qf Год назад

    3 for 3 baby!

  • @TheSoulEcstatic
    @TheSoulEcstatic Год назад

    Score:
    0-1-1

  • @roaling
    @roaling 11 месяцев назад

    im sorry but how did he peel that poor orange

  • @Agent_23_HACPOA
    @Agent_23_HACPOA 10 месяцев назад

    brownie Ingredients
    185g unsalted butter
    185g best dark chocolate
    85g plain flour
    40g cocoa powder
    50g white chocolate
    50g milk chocolate
    3 large eggs
    275g golden caster sugar
    Method
    STEP 1
    Cut 185g unsalted butter into small cubes and tip into a medium bowl. Break 185g dark chocolate into small pieces and drop into the bowl.
    STEP 2
    Fill a small saucepan about a quarter full with hot water, then sit the bowl on top so it rests on the rim of the pan, not touching the water. Put over a low heat until the butter and chocolate have melted, stirring occasionally to mix them.
    STEP 3
    Remove the bowl from the pan. Alternatively, cover the bowl loosely with cling film and put in the microwave for 2 minutes on High. Leave the melted mixture to cool to room temperature.
    STEP 4
    While you wait for the chocolate to cool, position a shelf in the middle of your oven and turn the oven on to 180C/160C fan/gas 4.
    STEP 5
    Using a shallow 20cm square tin, cut out a square of kitchen foil (or non-stick baking parchment) to line the base. Tip 85g plain flour and 40g cocoa powder into a sieve held over a medium bowl. Tap and shake the sieve so they run through together and you get rid of any lumps.
    STEP 6
    Chop 50g white chocolate and 50g milk chocolate into chunks on a board.
    STEP 7
    Break 3 large eggs into a large bowl and tip in 275g golden caster sugar. With an electric mixer on maximum speed, whisk the eggs and sugar. They will look thick and creamy, like a milk shake. This can take 3-8 minutes, depending on how powerful your mixer is. You'll know it's ready when the mixture becomes really pale and about double its original volume. Another check is to turn off the mixer, lift out the beaters and wiggle them from side to side. If the mixture that runs off the beaters leaves a trail on the surface of the mixture in the bowl for a second or two, you're there.
    STEP 8
    Pour the cooled chocolate mixture over the eggy mousse, then gently fold together with a rubber spatula. Plunge the spatula in at one side, take it underneath and bring it up the opposite side and in again at the middle. Continue going under and over in a figure of eight, moving the bowl round after each folding so you can get at it from all sides, until the two mixtures are one and the colour is a mottled dark brown. The idea is to marry them without knocking out the air, so be as gentle and slow as you like.
    STEP 9
    Hold the sieve over the bowl of eggy chocolate mixture and resift the cocoa and flour mixture, shaking the sieve from side to side, to cover the top evenly.
    STEP 10
    Gently fold in this powder using the same figure of eight action as before. The mixture will look dry and dusty at first, and a bit unpromising, but if you keep going very gently and patiently, it will end up looking gungy and fudgy. Stop just before you feel you should, as you don't want to overdo this mixing.
    STEP 11
    Finally, stir in the white and milk chocolate chunks until they're dotted throughout.
    STEP 12
    Pour the mixture into the prepared tin, scraping every bit out of the bowl with the spatula. Gently ease the mixture into the corners of the tin and paddle the spatula from side to side across the top to level it. STEP 13
    Put in the oven and set your timer for 25 mins.
    When the buzzer goes, open the oven, pull the shelf out a bit and gently shake the tin. If the brownie wobbles in the middle, it's not quite done, so slide it back in and bake for another 5 minutes until the top has a shiny, papery crust and the sides are just beginning to come away from the tin. Take out of the oven.
    STEP 14
    Leave the whole thing in the tin until completely cold, then, if you're using the brownie tin, lift up the protruding rim slightly and slide the uncut brownie out on its base. If you're using a normal tin, lift out the brownie with the foil (or parchment). Cut into quarters, then cut each quarter into four squares and finally into triangles.
    STEP 15
    They'll keep in an airtight container for a good two weeks and in the freezer for up to a month

  • @timenteun6743
    @timenteun6743 Год назад

    C?

  • @Iris-jw3ci
    @Iris-jw3ci Год назад

    1 for sure. c i know is real, b I don't know enough, but for a while it is possible to superboil water that's not how it works

  • @ethawalli
    @ethawalli Год назад

    2/3. I'll take that W

  • @unidentifiedperson1357
    @unidentifiedperson1357 Год назад

    three for three letsgo

  • @Ryanisthere
    @Ryanisthere Год назад

    only came here to figure out how you faked c

  • @fancen
    @fancen Год назад

    fire

  • @kakashi644
    @kakashi644 Год назад

    2/3

  • @saadahtsham7
    @saadahtsham7 Год назад

    round 1: B was fake

  • @SnipeDude500
    @SnipeDude500 Год назад +2

    I was here

  • @rizaclari-an2780
    @rizaclari-an2780 11 месяцев назад

    it's level 2 it's all not fake

  • @Kokice5
    @Kokice5 Год назад

    i guessed 2/3 correct :)

  • @Unchained_Alice
    @Unchained_Alice Год назад

    TIL that Quinine is pronounced differently in US English

  • @JerryGaming1111
    @JerryGaming1111 Год назад +2

    Chicken sandwich

  • @rizaclari-an2780
    @rizaclari-an2780 11 месяцев назад

    the level 1 it's C

  • @ollea60
    @ollea60 Год назад

    B2

  • @rizaclari-an2780
    @rizaclari-an2780 11 месяцев назад

    it's level 3 it's the A