Why don't black gloves work on hand sanitizer dispensers... or do they? (2 Truths & Trash)
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- čas přidán 7. 05. 2024
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2 Truths & Trash Playlist (All Episodes): • 2 Truths & Trash
Here's a list of questions answered in this video:
- Do black gloves work on automatic hand-sanitizer dispensers?
- Have Hippos ever been spotted in the ocean?
- Can you crush a hot can with cold water?
- Can you easily make magnetic putty?
- Does clinking two glasses bottles make one spill over?
- Does adding milk to coke make the coke turn clear?
- Does SPF 15 mean you need to stand in the sun 15 times longer to get the same exposure to the sun as no sunscreen?
- Do electrons in DC current move fast or slow?
- Are cars safe during a lightning storm because of the rubber tires?
- Do Venus Fly Traps need to eat insects to survive?
- How long can a resurrection plant go without water and how long does it take to recover?
- Does a cilantro plant track the sun within a few hours? or is it overnight?
Long-form - Věda a technologie
In Round 3, the fact about carnivorous plants is quite misleading. Although, in good soil conditions they don't need to eat animals, these plants grow with poor soils without enough nitrogen, which they obtain from the animals they consume.
Yeah I thought he was going to keep going so I got quite surprised when the video ended there
@@OWMANez Bro that's exactly what the guy said🤦
Thanks for taking the time to comment! Yeah I see why it's misleading. It'd kind of be like me saying humans can survive on just water and bread. I think I need to stop trying to find technicalities. I try to find those types because I think they'd be harder, but it just seems to lead to bad ones that are unfair to the audience. I'll try to be better.
@@mioroslund3023 No, he said they energy from photosynthesis. Whilst true, that's irrelevant to why Venus fly traps capture flies. As Ganso stated, these plants originate from areas with soil-nitrogen levels that are too low for healthy growth, so an adaptation evolved to gain additional nitrogen from decaying animals.
@@greensteve9307 I tagged another guy who deleted his comment, I wasnt reffering to the top comment.
That sponsored "fact" about sunscreen is misleading. Higher SPF has no impact on the duration of how long sunscreen will protect you. ALL SPFs will protect you for the same amount of time (around 2 hours or less) and as you climb in rating higher SPFs become less efficient. 30 blocks around 97% of the suns rays, 100 will block around 98 and a half. Yes, it will take longer to burn with a higher rated SPF, but you need to reapply regularly for and over an extremely long period of time for that to matter.
Yeah, that's a fair point. It's just taken from the math of blocking the rays and doesn't account for needing to re-apply.
I’m more amazed that something as weak as SPF15 is a thing. There is no way something like that would even get sold here in Australia
@@MyMemesAreTerrible i mean, that's 93%. not the safest, but it doesn't seem to be designed as a medical product, more of, "i want to get tan without getting burned" kinda product.
@@MyMemesAreTerrible it's useful for short walks early in the summer in countries like the UK, where sun isn't that strong
@@scotty3739its more for like "hey i just put on acne cleaners and i dont wanna burn"
My mom always put up a resurrection plant for Christmas. They are also called "roses of Jericho".
Great videos, but you should definitely always also mention the third one in the end so we'd get reminded of both real ones
Great feedback! Sometimes I feel like I don't need to because I've said everything I felt I needed to, but I'll be sure to add that in the future. Thanks!
@@JaDroppingScience You sure have, yet the short-term memory of us viewers is ever so limited 😄 Cool that you responded and great if you will actually start doing it 🥳
I just found your channel like a couple minutes ago and am loving this series. You deserve more recognition. As a science nerd these videos are so cool. Keep up the great work!
These never get boring ! Thank you for making them :)
And congrats on the sponsor ;p
At 2:42 I'm absolutely sure you said Jar Jar Binks science.😂
For the bonus round, I didn't listen to the whole story about the car in a thunderstorm and immediately assumed this one was true because I thougth the question was "Does it protect you from lightning to be inside a car".
So I thought I'd try to explain it here: while yes, the lightning can strike and will strike on the car if there is nothing else attracting the lightning, you are safe while you are inside the car.
The metallic frame acts as a Faraday's cage and will countain the high electric current outside. Even if you put your hand on the roof or door, you will not get shocked, making a car a very safe place to be in thunderstorm compared to outside.
Congrats on one mil!!!
Round 1: C makes sense. As the water vapor in the can condenses, the volume of substance in the can decreases, causing the internal pressure to decrease until the external pressure is enough to crush it. B, I'm not sure about, but I know they're primarily river-dwellers, so it makes sense that they'd stay in rivers and not in oceans (though stranger things have happened). I might go with A, because I don't think that glove is even purely black in visible light, let alone in infrared. (Damn, I gotta learn to not go with my gut in this game.)
Round 2: C is factually true, I've seen it before. A feels like it could work, but would also be easy to fake. B feels a bit sus to me, but I think it could be true. I'm kind of left with a gut instinct, and I know not to trust my gut. So I'm gonna go with B. (The one time my gut was right...)
Round 2.5: Ooh, I know this one. A is true, I want to say I learned it from Tom Scott. B is also true, I learned that from Veritasium. C is false, the reason cars are safe in a lightning storm is because they work like a Faraday cage, allowing the charge to move around you and not through you. (Badabing, badaboom, I'm not a total idiot.)
Round 3: It's been a while, but I remember being obsessed with Venus flytraps back in middle school. I'm pretty sure they need to be fed way more than once a year. B and C feel weird, but believable, so I'm gonna go with A. (Okay, I was right for the wrong reasons. Admittedly, I was aware that Venus flytraps got their energy from photosynthesis, but I was under the impression that they needed to eat meat for nutrition. But I guess the soil you're growing them in is more nutritious than their native soil.)
That hippo one was so lazy that I didn’t even think it was an option when it showed up I thought it was some weird fun fact
You forgot to add the answer to the coke + milk experiment at round two. I reckon it is true but without your video I will never know for sure 😢
it is true, the chanel "howtocookthat" showed it in one of her debunking videos"
@@shavranotheferanox7809 thanks!
Always love science!
You forgot the clip for the electron drift speed in round 2.5
the resurrection plant is also called the (false) rose of jericho. i got 3 of them at the time. when you hydrate them. make sure you have them hydrated for a week. then let them dry up again for a while.
This is the first time i got all 3 right! keep up the good work
Congrats on 1m subs, :D
Show us the iron filing oobleck with a magnet to prove it doesn't work
there are no documented cases of hippos ever going into the ocean 0:16
1:47 lol, yes that's why I thought it was fake you got me good xD
R1: B
R2: A
R2.5: E
R3: E
In round one, many soap dispensers also use ultrasonic sensors which would work.
Congrats for 1 million
It's obvious that all ready heard hippos in the ocean, we've all seen Madagascar 🙄
Woohoo, none were videos played in reverse! 🎉
Will D or E ever be answers?
It was the answer for the last one wasn’t it
@@SnakeDude. no
it has been a couple times
@@chillyconmor when? pretty confident I've watched all the vids and those have never been correct.
i think he just added them cause people kept saying it, but is never gonna actualy make it the answer
Essentially, the metal frame of a car acts as a Faraday cage
I knew the car one because I read a whole article about it for extra credit.
You finally got me.
I have gotten 1 wrong. Good job!
As someone who owns a potted cactus in a window, it will legit move to face the sun in 4-5 hours.
This was fun
In my science class we did the can crush experiment
1 i got wrong, i thought the soap dispensers used motion sensors and that you just coverd that up with tape
2 i got correct but only becouse i knew the other ones where correct
2.5 i got correct cause i knew that cars were safe but not because of the tires
3 i got correct for the same reason as i got 2
Could you explain the part about the elctrons moving slowly?
I think Veratasium has a video on it
Well.. the idea behind it is that even if each individual electron is moving slowly, the current still is created quickly - ie., every electron in the wire starts moving almost instantly, but each individual electron isn't moving much - there are always electrons present everywhere along the wire (well, except for microscopically small distances), and the device starts getting power as soon as the electrons at the front of the wire start moving, it doesn't need to wait for the electrons at the back of the wire to reach it.
I think it's a bit ambiguous though because I'm pretty sure it depends on the context (and also how literally you take it). I'm almost certain that in some contexts the electrons can move much faster (depending on the wire, how much power is being used etc. etc.).. and if you take it absolutely literally then it's definitely false as electrons are always moving way way faster than that (even if there were no circuit at all, electrons move way faster than that just by orbiting an atom), it's just that they're moving in a bunch of different directions and it "mostly" cancels out when you don't have a circuit.
I did the can one in year 7 science class
i got the bonus round completely wrong I though that that the first 2 were wrong and it was a rare "multiple are fake" and the 3rd one was right, but instead it was the exact opposite.
Nice
wait so round three was the glove one or the hippo one? or none were fake? IDK WHY DIDNT YOU TELL ME
the hippo was fake
None
My guesses:
Round 1: a
Round 2: a
Round 2.5: d
Round 3: a
2 right, 2 wrong
My hands don't work on sensors either lol.
This one was mostly by process of elimination and because, unlike fish, the salinity of the water doesn't affect how a hippo breaths air.
Oof, messed that one up.
Love the use of the emojis, thanks for your support!
I am normally pretty lucky with these
Round 1 B
Round 2 A
Round 2.5 A
Round 3 A
These are my guess, they might not be right :(
i got 3/2 :p
why does the soda one work?
I think SPF means Solar Protection Factor.
I Keep getting tricked by that dispenser Because it looks like the gap under it is tiny 0:11
(SPOILERS)
I really don't like the wording for 2.5 Option C because it's only technically false. If it had been worded something like "Cars are a safe place to be in a thunderstorm. The rubber tires insulate it from the ground and stop the electricity from reaching the ground", it would be a true statement with partially false information attached. The only reason it's false is because you said it like "Cars are a safe place to be in a thunderstorm because the rubber tired stop the electricity from reaching the ground". The main reason this is bad is that it means you have to pay very close attention to the wording in addition to the science
It's a false fact that could have been correct if it was a different fact, how is that bad?
@@cool_bug_facts READ THE ENTIRE COMMENT
Are we just going to ignore what milk does to the coke???
What coke does to milk*
C proved b wrong because of lighting also electrons move at the speed of light
emotional damage
0:35
Wait... then arent hand sanitizer dispensers racist?
ir is racist
Bro thats moke lol
i said the glove one was fake because...
milk + coke = cilk
In round 1 he says if you thought the first one was fake you would be wrong but it is the fake video.
Why is 4 an option when 1 is always fake
finally 6th grade science was helpful
992
wth happened with the coke? watched the entire vid to have this explained
2 correct
1 correct
3 correct
None wrong
Im british so idk what the hell "SPF" is
0:45 wait, so is it true that if you have black skin these don’t work properly O-o
No because no matter the color, skin reflects infrared light nicely. The gloves, however, don't do such a good job. But why would you use a dispenser with gloves?
C for 3
In the bonus round you're wrong. If it blocks 97% then only 3% gets through. You would need to be exposed for 33x and not 30x.
Moral of this Video : *dont try to sell "Auto hand sanitizer machine" in Africa *
So how does sanitizer dispensers work for darker skinned folks since theyre darker skinned like the dark glove
My life is a lie... I was taught to get in a car during lightning storms... Lucky me I've never been near a car during a lightning storm.
No, it IS safe to be in a car during a lightning storm, just not because the tires insulated. The safety comes from the car frame (which you likely won't be touching on the inside) safely conducts the lightning to the ground rather than through you
E
Make one where everything is true and you say how it works but one explanation is wrong.
Black people trying to use the sanitizer dispenser: ay yooo this dispenser is racist
The tittle of the video: can black gloves trip soap dispencers
How i read it: are soap despencers rasist
b
d
Round one: it'd be so racist if it were true
First video : racist soap dispenser
I HATE SPONSERS😡💢 I'M IN THE MIDDLE OF WATCHING SOMETHING 💢💢💢💢💢💢💢💢💢💢💢💢💢
naaaah man, racist soap💀💀
since when were soap dispensers racist 💀💀
Is it just me or is that dispenser racist
:)
I’m sorry but baby baby baby content
Racist hand sanitizer dispensers?!