30 More Life Hacks Debunked Pt. 3 - mental_floss on YouTube - List Show (245)
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Apr 3, 2025
A weekly show where knowledge junkies get their fix of trivia-tastic information. This week, John tests a third round of 30 "life hacks" to see if they work as promised.
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0:00
Hi, I'm John Green. Welcome to Mental Floss
0:02
It's time for another Life Hacks video. These are my favorites, so we're going to start with a cupcake so that I can celebrate
0:08
We're going to cut it in half. And then the internet tells me that if I make a cupcake sandwich, it will be delicious
0:18
And it is. That's a pass. Solid Life Hack. The first of many that I'm going to test for you today
0:30
I am now going to attempt to make an ice cream sandwich by destroying this thing of ice cream
0:36
Uh... So far I feel that it's perhaps inadequately frozen. Ugh! Let me submit that while technically a pass
0:47
there is an easier and less expensive way to acquire an ice cream sandwich
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called buying an ice cream sandwich. Here's a life hack that will actually change your life
0:56
How do you open a banana? Oh, no, I can't open it. What? Oh, you open a banana. this way. Kumbaya. I don't know why I'm singing that. Anyway, that's the easy way to open a banana
1:06
Pass. There's a lot of seeds in here, but supposedly if you submerge the halved fruit in water, all the
1:12
seeds will come out. Except no, because there's a floating seed and a lot of the pith is fail
1:19
I've also read that if you're making an omelet, it's easier to use a pizza cutter to slice up your
1:22
meats than to use a knife. And look at that. It truly is. Pass. Speaking of omelets, I've heard
1:29
that old eggs float and new eggs sink. Old eggs? Pretty sinky. New eggs? Also sinky
1:40
But maybe you don't want to eat eggs. Maybe you just want to dye them, because, you know
1:44
that's what our consumption culture has come to. Why not try using Kool-Aid instead of
1:48
traditional dye? You're going to want to stir it up, and then your eggs are ready to dye
1:55
Or are they? We're gonna find out. Second life hack, I've heard that putting the eggs inside of a whisk allows you to, you know, retrieve them easily when you're dying them
2:04
So, double life hack time. And wait 60 seconds. Dada-da-da-da-da-da-da-da-da-da-da-da! Double pass
2:13
Plus with traditional egg dye, you can't do this. Mmm. Delicious. Now this is super hard butter You can spread it on toast but maybe you could grate it onto toast I mean it kind of works There some butter Pass
2:33
I have a computer. I also have a post-it note. But can this post-it note clean this computer keyboard
2:40
You know, it did remove some dirt. I'm going to say marginal pass
2:44
So if you're like me and you run between 5 and 10 miles per day, shut up. I totally do that
2:48
Anyway, sometimes you get your headphones tangled, but I have read that if you just grab a point in the middle and shake vigorously, they will become untangled
3:03
No, that's just not the case. I really want this one to be true, so I'm going to try again
3:11
Oh, God! No, still no. Still no, but I did almost die
3:15
But apparently an empty tape container can be a good storage system for non-tangled headphones
3:21
Sort of. You know what's a fantastic storage system for non-tangled headphones
3:26
A drawer somewhere. Well, it wouldn't be a Lifehacks video if we didn't try to amplify the sound from a phone
3:31
using, you know, college kid alcohol cups. And in this case, a toilet paper roll as well
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So let's try it out. That is significantly louder! Pass
3:48
Do you need a fancy iPhone holder? Not if you have Legos, at least according to the internet
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Oh, pass! I've also read that you can use one of these beverage holders as a stand for your iPad so you can watch movies comfortably
3:59
First off, it's not the right size. Also definitely doesn't work vertically
4:04
If I just, like, wedge it in there? No? I'm going to try it with an iPad mini because we're not giving up on this stupid life hack
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No, fail. Now if you have one of the last glass ketchup bottles on earth, I have read that sticking
4:23
a straw in will speed the flow. We actually have chili sauce instead of ketchup, but it's functionally the same
4:34
Could be faster. Now a meat life hack, supposedly you can just kind of twist the bones around to make it
4:40
easier to eat No Did I not do it right I mean just eat the f chicken Okay let say that you have to paint a board Why Well because you making a life hacks video I have read on the internet that you can paint paint paint
5:00
and then you want to make sure your brush is clean. Just use the
5:04
rubber band that you put around the paint container and you have a much nicer brushing experience
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There we go. You know, I have to say pass. But let's say you've got a paint job of the
5:18
roller variety, then maybe put down some aluminum foil underneath your little roller pan thing
5:24
so that when you're all done, instead of having a dirty pan, you can just hold it up
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It works pretty well. Clean hands. Clean roller thingy. Pass. Now, you might remember from earlier that we have a half-painted board
5:37
but we need to put a nail in that board now. Why? Well, because Meredith told me to
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So, according to the internet, you can use this comb to hold the nail. No, you can't
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Does the comb hold the nail? Or not? Ah! Nope. Yeah, let's see if time along this sticks
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And done. Fail. I've also been told that hand sanitizer can remove Sharpie from clothing
6:02
I happen to know that hand sanitizer can remove Sharpie from your face, but I don't know about clothing yet
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I would say, if anything, it's become somewhat darker. darker. Two new batteries, two old batteries. Supposedly, the new batteries will only bounce
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once. The old batteries will bounce more than once. Ready? Not much of a bounce at all
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Fairly significant bounce, actually. Pass. When cutting bread with a hilariously dull
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knife, apparently it is easier to do it when upside down, because this side is softer
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Oh, good lord. Okay, I have a sense of how hard that was. Very
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Now let's find out how hard it is on this side. Maybe equal or possibly less. Fail
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Meredith just told me, I don't know how, but this is supposed to be a bottle opener
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So we're gonna give it a try. The moment of glory. The moment of truth
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Fail. If you slice the top off of your bag of peas
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you can then use the top as a tie for your bag of peas
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You know what if my life depended on it pass But I probably gonna spend 17 cents on an actual tie
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Alright, speaking of frozen food, let's take this to the kitchen. Now I'm going to open the freezer where Mark has prepared some life hack experiments for
7:36
me, including chocolate covered strawberries from an ice cube tray. Alright, let's see. Go. Ah! Nope. Nope
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Um, fail. And now we're going to try the Limerita Popsicle. Meredith, what is a limerita
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Is it like a margarita? Apparently it's like a Bud Light, but a Popsicle
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How did I get so lucky? Oh, oh, oh, oh
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I mean technically passed, but at what cost? Maybe that disgusting popsicle would taste better with some limes, and according to the
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internet, microwaving these two limes for 30 seconds will make them juicier
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But are they juicier than real limes? Let's measure juiciness. They're exactly as juicy as real limes
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And lastly, we're going to test whether keeping ice cream in a Ziploc bag keeps the ice cream soft
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You know what? This is pretty soft ice cream. Yum! It's good
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But, for purposes of science, and so I can maximize the amount of ice cream I eat today
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I have to test it against ice cream that hasn't been in a Ziploc bag, and that's when you
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discover that it's just as soft and delicious either way, thanks to our fantastic freezer
9:06
Now we know from a previous Life Hacks video that Doritos make excellent kindling, but but apparently so do toilet paper rolls that contain dryer lint
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Oh, oh, look at that! I'm gonna say that aside from the worrisome odor that it's a complete pass
9:39
Don't forget a real bottle opener because a coat hanger will not work
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