- 13 hours ago
Are you throwing away money on high-tech gadgets without even realizing their full potential? Discover the hidden features and manual adjustments in common household items that most people overlook. This eye-opening exploration will change how you view your everyday tools. Once you understand their true capabilities, you'll save money and make smarter choices in your home. Join us as we reveal the secrets that can transform your daily routine.
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00:01What's hiding inside Coca-Cola cans and regular household batteries?
00:05Why do magnets affect breakfast cereals?
00:08Do crosswalk buttons actually work or are they just useless decorations?
00:14What does that USB symbol really mean?
00:17I'm not sure I know the answers to these and similar questions,
00:21but I'm eager to learn the truth together with you.
00:24Let's find it out.
00:26Coca-Cola cans have a secret few people know about.
00:30Here's a Coke can.
00:31Let's submerge it in a highly corrosive alkaline solution.
00:35The aluminum dissolves due to a process known as hydrolysis,
00:39and we can see a plastic liner inside the can.
00:42It's made from a polymer or epoxy resin
00:45and serves as some kind of a protective barrier
00:48between the aluminum walls of the can and the rather acidic soda.
00:53Despite a popular myth, household batteries don't actually contain liquid,
00:58and if you accidentally cut them open, no toxic liquid will spill.
01:02Most of them are dry cell batteries which are made of electrochemical cells.
01:06Those convert chemical energy into electrical energy.
01:10Larger batteries often house numerous small cells within them too.
01:14Even Tesla vehicle batteries consist of multiple small cells.
01:18When combined, they easily provide the necessary voltage.
01:24Most toothbrushes have differently colored bristles,
01:27but they aren't just pleasing to the eye.
01:29Those bristles, often blue, have a functional purpose.
01:32They're called toothbrush indicators,
01:34and their colors fade as you use the brush.
01:37The American Dental Association recommends changing your toothbrush
01:40at least four times a year.
01:43And by getting paler,
01:44these bristles help you figure out when it's time to replace your toothbrush.
01:49You'll probably agree that there's no better snack than a pack of chips.
01:53Some are flat, others have ridges.
01:55Is it just aesthetics?
01:57Not really.
01:58The main purpose of those lines on some kinds of chips
02:01is to help with the distribution of spices and seasonings.
02:04In other words,
02:05all those substances that make your chips taste like cheese
02:08are mostly stored inside the lines.
02:11Plus, the lines make chips crunchier.
02:15Now, this one might be a surprise,
02:17but some breakfast cereals are magnetic.
02:19That's because they're often fortified with iron
02:22in the form of a fine powder.
02:24Due to the added iron,
02:26cereal flakes get attracted to magnets.
02:28All this may sound kind of alarming,
02:30but in reality,
02:31the iron content in the flakes is minimal
02:33and doesn't pose any threat to your health.
02:37That clear fluid in gel pens
02:38is called the ink follower or stopper fluid.
02:41The gel in such pens contains pigment particles
02:44dissolved in a polymer solution.
02:47The main task of the stopper fluid
02:49is to be a barrier
02:50to prevent the gel from evaporating or leaking out.
02:53Without this transparent fluid,
02:55your gel pen wouldn't function.
02:58The fluid always stays in one position
03:00and doesn't get dissolved with the gel.
03:02Neither does it move backwards
03:04or flow out of the pen.
03:07Many pedestrian crosswalk buttons,
03:09namely in New York,
03:11are placebo buttons.
03:12They do literally nothing when you press them.
03:15Originally, they were functional
03:17after being introduced in 1964,
03:19but today,
03:20most of them don't affect traffic lights,
03:22which are programmed
03:22based on the real needs of the traffic flow.
03:26Why do such buttons even exist then?
03:28It's a simple psychological trick,
03:30providing you with an illusion of control.
03:34You might have noticed
03:35that movie theater seats
03:36are almost always red.
03:39This choice isn't random.
03:40It has strategic importance,
03:42which is rooted in visual science.
03:44The thing is,
03:46red light has a longer wavelength.
03:47It means that it's the first color
03:49to disappear in low light.
03:51It allows the audience
03:52to concentrate better on the screen
03:53once the movie begins.
03:55Such a design choice
03:56enhances the viewing experience
03:58by minimizing distractions.
04:01Speed bumps are crucial
04:02for pedestrian safety,
04:04but at the same time,
04:05they can seriously increase car emissions
04:07due to the non-stop acceleration
04:09and deceleration they cause.
04:13To address this issue,
04:14some cities like London
04:15are testing fake speed bumps.
04:17Those are optical illusions
04:19painted on the road.
04:20They look raised
04:22from a driver's perspective,
04:23but in reality,
04:24they're flat.
04:25Authorities hope that this approach
04:27will slow down drivers
04:28without having a negative impact
04:30on the environment.
04:33Soda bottles are always filled
04:35in such a way
04:36that there's some space
04:37between the liquid and the cap.
04:39That's because soda contains
04:40carbon dioxide.
04:41It's a gas that can expand
04:43once the bottle's heated.
04:44If there's no gap in the bottle,
04:46it can break
04:47because of the pressure
04:48building inside.
04:50Also, when you open your drink,
04:52the gases go out
04:52in the form of bubbles,
04:54making the drink overflow.
04:55The gap helps
04:57with this problem, too.
05:00The USB symbol,
05:01looking like a trident,
05:03has always sparked
05:04multiple speculations
05:05about its origin.
05:07One popular idea
05:08is that it represents
05:09Neptune's trident
05:11and symbolizes power
05:12and adaptability.
05:13But there's also
05:14a little bit less
05:16exciting theory.
05:17A man who claimed
05:18to have designed the symbol
05:19in the 1980s
05:20stated that it was supposed
05:21to represent connectivity.
05:23The large circle
05:24symbolizes a computer,
05:26while the attached shapes
05:27– the circle,
05:28the triangle,
05:29and square –
05:29stand for different outputs.
05:33The design of a tennis racket
05:35has a specific feature
05:36known as the throat.
05:38It's an open space
05:39below the head of the racket.
05:41This space isn't just
05:43for storing balls,
05:44it also improves
05:45the racket's aerodynamics
05:46by letting air pass through.
05:48It seriously reduces drag
05:50during swings.
05:52Speaking of tennis,
05:54tennis courts are usually
05:55built with a north-south
05:56orientation.
05:58It helps minimize
05:59the impact of the sun's
06:00position during the game,
06:01ensuring that neither player
06:03has the sun directly
06:04in their eyes.
06:06Look closely
06:07at a tram's overhead lines,
06:09and you'll see
06:10that its contact wires
06:11zigzag back and forth
06:13instead of going
06:13in a straight line.
06:15That's because all trams
06:16have pantographs
06:17attached to their roofs.
06:19The upper part
06:20of the pantograph
06:21is gradually worn down
06:22by the overhead wire
06:23and eventually
06:24needs to be replaced.
06:26To wear it down evenly,
06:28the wire is not
06:29installed strictly
06:30along the tram's path,
06:32but in zigzag patterns.
06:34As the tram moves,
06:35the pantograph slides
06:37along the wire,
06:38and it wears down evenly.
06:41Those cone-shaped
06:42water cooler cups?
06:44Their shape is
06:45intentionally designed
06:46to prevent users
06:47from setting the cups down.
06:48This allows employees
06:50to minimize the risk
06:51of spilling water
06:52on their desks
06:53around various
06:53electronic devices.
06:55Plus, less material
06:56is used to produce
06:57cone-shaped cups,
06:58which makes the process
06:59less wasteful
07:00and more cost-effective.
07:02It also kind of
07:04supports sustainability
07:05by encouraging people
07:06to drink their water
07:07quickly and dispose
07:08of their cups
07:08immediately after.
07:12Most suitcases
07:13have two zipper pulls,
07:14and it serves
07:15several purposes.
07:17First of all,
07:18if one zipper fails,
07:20the other can keep
07:21the suitcase closed.
07:22Even better,
07:23having two zippers
07:24allows you to have
07:25easier access
07:26to small sections
07:27of your suitcase
07:28without having
07:28to open it entirely.
07:31And finally,
07:32when you have two zippers,
07:33you can connect them
07:35with a padlock
07:35for increased security.
07:39Some plastic milk containers
07:41have dents on their sides.
07:42These dents
07:43serve several purposes.
07:45When milk spoils,
07:46it usually causes swelling
07:48and high-pressure buildup
07:49inside the container.
07:50That's when the dent
07:51pops out
07:52and doesn't let
07:52the jug blow up.
07:54Plus,
07:55if you decide
07:55to freeze the milk,
07:56it will expand
07:57like any other fluid.
07:59And then again,
08:00the indentation
08:01will pop out
08:02and prevent the container
08:03from breaking
08:04inside your freezer.
08:07If you ever had
08:08a problem figuring out
08:09why fake pockets exist,
08:11you need to hear this.
08:13The main reason
08:14is that if a clothing item
08:16has a specific cut
08:17or shape,
08:17pockets may spoil it.
08:19They can alter
08:20the item's shape
08:21either in the warehouse
08:22or already on
08:23the retail rack.
08:24The solution?
08:26Getting rid of the pockets
08:27in key areas.
08:28Plus,
08:29fake pockets
08:30are obviously cheaper
08:31and they don't get
08:32stretched out.
08:34The thermos
08:35wasn't actually invented
08:37to keep your coffee warm.
08:39It was made
08:40by a Scottish scientist
08:41who wanted a safe place
08:42to keep his chemicals
08:43at a stable temperature.
08:45So,
08:46he took two bottles,
08:47put the smaller one
08:48inside the bigger bottle
08:49and vacuumed out
08:50the air between them.
08:55Have you ever wondered
08:56what these extra holes
08:57at the top
08:58of your running shoes
08:59are for?
09:00They're designed
09:01so that you can tie
09:01the shoes
09:02in multiple different ways.
09:04That's useful
09:04when you want
09:05to compensate
09:05for things
09:06such as a bad stride
09:07or even a damaged toe.
09:10Plus,
09:11you can change
09:12the look of your shoes
09:12the way you prefer.
09:16Many people use
09:17a dust jacket
09:18of their book
09:19as a book marker.
09:20No problem with that.
09:22It will save your book
09:22from bent page corners.
09:24But the primary purpose
09:25of a dust cover
09:26is to keep the book safe
09:28from distortions.
09:29For instance,
09:30if you spill juice
09:31or drop some of the food
09:32on your book
09:33while reading it.
09:35The Tic Tac dispenser
09:37has this little groove
09:38on its top
09:38so you can dispense
09:40only one Tic Tac
09:41at a time.
09:42Even though,
09:43let's be honest here,
09:44nobody does that.
09:45Most of us
09:46just spill
09:46a whole bunch
09:47at once
09:47and then we wiggle
09:48all those extra Tic Tacs
09:50back in.
09:52Those rubber bumps
09:53you see between
09:54the tire treads
09:55are there
09:55for your safety.
09:57The raised edges
09:57tell you
09:58what the minimum height
09:59of your tread is.
10:00If the bump
10:01and the edges
10:02are even,
10:03it's time for you
10:04to visit the tire shop
10:05as soon as possible.
10:06But if the bumps
10:07are well beneath
10:08the level of the edges,
10:10you're good to go.
10:12What about that
10:13black grating
10:14on the microwave window?
10:15It's something called
10:16a Faraday shield
10:18and it's there
10:19to prevent microwaves
10:20from getting away
10:21and turning the entire room
10:22into a Faraday cage.
10:24If the microwaves escape,
10:26your meal won't cook
10:27properly either.
10:28So yep,
10:29the cage is not there
10:30to make it difficult
10:31for you to see your meal
10:32while it's cooking.
10:33It's keeping
10:33the electromagnetic energy
10:35inside.
10:38How about a wrench
10:39compatible screwdriver?
10:41Cover your screwdriver
10:42with the end of your wrench
10:43and you can increase
10:44its torque.
10:45That's why the head
10:46of your screwdriver
10:46is designed the way it is.
10:48When you have odd angles,
10:50you can use this strategy.
10:53You've probably heard
10:54those myths,
10:55the blue side of the eraser
10:56can erase the pen.
10:58False.
10:59Its purpose
10:59is to erase a pencil.
11:01But in case you're writing
11:02something on heavier paper,
11:04the blue side
11:05can remove smudges
11:06you see after using
11:07the pink eraser too.
11:10Have you ever wondered
11:11why oranges in supermarkets
11:13mostly come in the red mesh bag?
11:16It's a trick
11:17to make this food
11:18look more orange
11:19and encourage you
11:19to make a purchase.
11:21An extra tip,
11:22don't throw away
11:22the mesh bag.
11:24Tie it up
11:24so you can have
11:25a small pot scrubber
11:26to clean your sink,
11:27kitchen,
11:28appliances,
11:29and dishes.
11:32You can see golf balls
11:33don't have
11:34a perfectly round shape.
11:35Their surface
11:36is covered
11:37with many little dimples,
11:38something golf balls
11:39didn't always have.
11:41At one point,
11:42experienced golfers
11:43started noticing
11:44how through time,
11:45older balls
11:46with imperfections
11:47such as nicks
11:48and bumps
11:49could travel further.
11:51Such things
11:52create turbulence
11:53in the air
11:54around the golf ball,
11:55which eventually
11:56reduces drag.
11:57So,
11:58manufacturers
11:59started producing
12:00balls with dimples
12:01so they could go
12:02farther and faster.
12:05You might have noticed
12:06that sometimes
12:07there are ridges
12:07in toothpick tops.
12:09It's more hygienic
12:10because when you
12:11break that off,
12:11you can prop the
12:12toothpick up on it
12:13and it won't touch
12:15anything.
12:17Another safety feature
12:19you'll find,
12:19this time in your car,
12:21is a tab
12:22on your rearview mirror.
12:24With it,
12:24you can change
12:25the position
12:25of the mirror
12:26so you don't get
12:27blinded if there's
12:28a car behind you
12:28with its high beams on.
12:30So,
12:31this little tab
12:32helps you control
12:33the glare of lights
12:33coming from behind.
12:35This feature showed up
12:36in the 1930s,
12:37but in the early 1970s,
12:39it became a part
12:40of standard equipment
12:41in most trucks
12:42and cars.
12:45Do you see
12:45that tiny hole
12:46on your iPhone
12:47right next to
12:48the rear-facing camera?
12:49It's a microphone
12:51and it's there
12:51so your phone
12:52can record sound
12:53as you turn
12:53your camera around.
12:57Some cables
12:58have a thick cylinder
12:59towards the end
13:00of the cord.
13:01It's called
13:02a ferrite core
13:03or a choke.
13:04It's a magnetic
13:05iron oxide
13:06that stops
13:06high-frequency
13:07electromagnetic interference.
13:09For example,
13:11you know that
13:11annoying static noise
13:13you get
13:13if you bring your phone
13:14too close to a speaker?
13:16This interrupts
13:17your call,
13:17which is why
13:18cable cords
13:19with big cylinders
13:19are pretty useful
13:21because they prevent
13:22these things.
13:24Do you know
13:25why nearly all
13:26luggage bags
13:27and backpacks
13:27have two zippers?
13:29It's way more convenient
13:30and easier to open
13:31in that way.
13:32But not just that,
13:34you can also lock
13:35these two zippers
13:35together
13:36to keep the stuff
13:37inside your bags
13:38safer.
13:40You know how
13:41toilets at public
13:42spots like malls
13:43have those big
13:44gaps at the bottom?
13:46It's primarily
13:47for better circulation
13:48of air.
13:49This type of door
13:50also makes it easier
13:51to clean the toilet
13:52or check if it's
13:53occupied
13:54if you're standing
13:54in line.
13:56Other than that,
13:57if you get stuck
13:58there and the lock
13:59gets broken,
13:59you still have a way
14:01to escape.
14:02You can just crawl out.
14:05Ever notice
14:06those plastic end caps
14:07on utility knives?
14:09And they also have
14:10scales on them,
14:11which indicates
14:12you may use them
14:13multiple times
14:14but with sharp edges.
14:16You can separate
14:17the blades
14:18through these
14:18plastic end caps.
14:19Then,
14:20you can move
14:21the slider
14:21and bring the sharp
14:22blade to the front.
14:24If you've ever
14:25taken a moment
14:26to examine
14:26a regular grocery cart,
14:28especially their
14:29fold-out section,
14:30you probably noticed
14:31those metal loops
14:32jutting out.
14:33They're designed
14:34to protect the items
14:35you carry in your cart.
14:37You can use them
14:39to hang bags
14:39with soft items.
14:41You don't want
14:42to accidentally squish
14:43with heavier products
14:44like bread
14:45or easily breakable
14:46things like eggs.
14:50Many coffee mugs
14:51come with curved
14:51notches on their bottom.
14:53When you're
14:53washing your mugs,
14:54put them against
14:55the rack
14:55at an angle
14:56in your dishwasher.
14:57This way,
14:58the water won't
14:59pool in there,
14:59so your favorite cup
15:01will be completely dry
15:02by the time you
15:02take it out
15:03of the dishwasher.
15:05If you're a
15:06McFlurry fan,
15:07you've probably noticed
15:09there's a square hole
15:10in the handle
15:10of the spoon.
15:12It's there,
15:12so you can attach it
15:13to the special machine
15:14that mixes the ice cream
15:15and your favorite toppings
15:17together.
15:18The machine has a bar
15:20that slips into
15:20this square-shaped spoon
15:21and then thoroughly stirs it.
15:24And you get the spoon
15:25so they can minimize
15:26the mess
15:26during the process.
15:28Quite neat,
15:29wouldn't you say?
15:31A regular milk jug
15:33has a dent
15:33on one side.
15:35Some might see it
15:36as a random design decision,
15:37but a dent
15:38has several purposes.
15:40One of them
15:41is to get bigger
15:42if there's a gas buildup.
15:44This happens
15:45when your milk is spoiled.
15:46So you don't even
15:47have to try
15:48to check this out.
15:49Also,
15:50the dent is there
15:51so the jug
15:52doesn't burst
15:52if you accidentally
15:53drop it.
15:54The dent
15:55allows the expansion space
15:56that deals
15:57with the sudden pressure
15:58that happens
15:59when you drop the jug.
16:02Dental floss.
16:03Sure,
16:04it's important
16:04for your dental health
16:05and it's easy
16:06to assume
16:06what you do with it.
16:07But dental floss
16:09is great in the kitchen
16:10as well
16:10because it's
16:11a very precise
16:12cake slicer,
16:13way better
16:14than a regular knife.
16:18Most kitchen shears
16:19have a serrated opening
16:21right there
16:22at the center
16:22where the blades
16:23and handles meet.
16:24It's something
16:25you can use
16:25to trim difficult herbs
16:27such as rosemary,
16:28thyme,
16:28or chives.
16:30Because of this opening,
16:31you don't need
16:32to pick the leaves
16:32off by hand,
16:33but de-stem them
16:34in one motion.
16:37The majority
16:38of gelatin containers
16:39or single-serving yogurts
16:41come with a tinfoil lid
16:43and in most cases,
16:44you can use this covering
16:45as a disposable spoon.
16:47Just peel away
16:49the covering
16:49and after a couple
16:50of simple folds,
16:51you'll have a perfect
16:52little spoon
16:53for your midday snack.
16:56You're thirsty,
16:57so you crack open
16:58a soda can
16:59and take a few
17:00big gulps.
17:01Next thing you know,
17:02you're out of commission.
17:03Turns out,
17:04that can was contaminated
17:06with something nasty
17:07like rat urine
17:08and you had no clue.
17:11Just goes to show,
17:12you never know
17:13what might be lurking
17:14in that seemingly
17:15innocent drink.
17:17During transportation,
17:18storage,
17:19or handling,
17:20cans can pick up
17:20germs,
17:21bacteria,
17:22and dirt.
17:23When you drink
17:24straight from the can,
17:25those germs
17:26can easily
17:26enter your body.
17:28Cans are often
17:29stored in warehouses
17:30and rarely get
17:31a good cleaning
17:31before they reach you.
17:33Warehouse conditions
17:34can be pretty gross.
17:36Think rats
17:37running over them
17:38and less than
17:39ideal hygiene.
17:41To stay safe,
17:42it's a good idea
17:43to clean cans
17:44before drinking from them.
17:45Experts suggest
17:46giving them a quick wash
17:47with soap and water
17:48to avoid contamination.
17:50Studies have shown
17:51that unwashed bottles
17:53can be full of bacteria,
17:54so this step
17:55is really important.
17:57Now,
17:58quick question.
17:59Who's taken out
18:00more people?
18:01Sharks
18:02or vending machines?
18:04Surprisingly,
18:05vending machines
18:05have a darker history.
18:07Let's dive in.
18:08But first,
18:09let's define
18:09what counts
18:10as a vending machine
18:11casualty.
18:12We'll rule out
18:13things like expired snacks
18:15or electric shocks.
18:16Those aren't
18:17the machine's fault.
18:18What we do count
18:20are incidents
18:20where someone
18:21was severely harmed
18:22or, what's worse,
18:23passed away
18:24from rocking
18:25or tilting the machine.
18:26For sharks,
18:28any fatal encounter counts.
18:31In a 1995 report,
18:34there were two severe incidents
18:35that ended up in demise
18:37and one serious injury
18:39linked to vending machines.
18:40Since 1978,
18:42there have been
18:43at least 37 such incidents
18:45and 113 injuries,
18:47which gives us
18:48about two fatalities
18:50per year.
18:51Compare that
18:52to one shark-related
18:53incident in 2021.
18:55However,
18:56this data is quite old.
18:57Since 2008,
18:59there haven't been
18:59any reported
19:00vending machine incidents.
19:02Why the drop?
19:03It could be due
19:04to warning signs
19:05and credit card readers
19:06reducing the need
19:07to shake machines.
19:09But remember,
19:10your risk varies
19:11based on where you live
19:12and your habits.
19:14In the end,
19:15the vending machine
19:16versus shark comparison
19:17isn't quite accurate anymore.
19:20Today,
19:20you're more likely
19:21to have a serious encounter
19:22with a shark
19:23than a vending machine.
19:24But the point remains,
19:26sharks aren't
19:27the bloodthirsty hunters
19:28they're made out to be.
19:30So,
19:31someone pointed out
19:31your visible nose hairs
19:32and now you're looking
19:34for ways to deal with them.
19:35You might think
19:36plucking is the way to go,
19:37but hold up,
19:38it's not as safe
19:39as you think.
19:40Here are three
19:41solid reasons
19:42to avoid plucking
19:43your nose hair.
19:45Your nose is full
19:46of delicate nerves,
19:48follicles,
19:49and plenty of bacteria.
19:50Plucking nose hair
19:51can damage the sensitive skin
19:53inside your nostrils,
19:54letting germs in
19:55and causing issues
19:56like infections
19:57and inflammation.
19:59Also,
20:00just like with waxing,
20:01plucking nose hair
20:02can result in ingrown hairs.
20:04As the hair grows back,
20:06it might curl
20:07into the follicle,
20:08causing bumps,
20:09discomfort,
20:09and inflammation.
20:11This can lead
20:12to folliculitis,
20:13which shows up
20:14as small,
20:15pus-filled red bumps
20:16and can be itchy
20:17or painful.
20:18In severe cases,
20:20plucking nose hairs
20:20can cause nasal
20:21farunculosis,
20:23a deep follicle infection
20:24with swelling
20:25and discomfort.
20:26This infection
20:27can spread to blood vessels
20:29near the brain,
20:30potentially leading
20:30to cavernous sinus thrombosis,
20:33a condition
20:34where blood clots
20:34form behind the eye sockets.
20:36If not treated,
20:38this condition
20:38can be life-threatening
20:39and may cause
20:40permanent brain damage.
20:42To avoid these problems,
20:44go for trimming
20:45your nose hair instead.
20:46Trimming doesn't make
20:47your hair grow back
20:48thicker or faster,
20:49and it helps maintain
20:50the right amount
20:51of nose hair
20:51to keep out pathogens.
20:55Contact lenses
20:56are meant to help you see,
20:58but they can make you
20:59turn completely blind.
21:01One big no-no
21:02is wearing your contacts
21:04in the shower.
21:05It's bad for both your lenses
21:06and your eye health.
21:08Showering with contacts
21:09is like swimming
21:10or sleeping with them in.
21:11It's a common mistake.
21:13Water and contacts
21:15just don't mix.
21:16You need to keep
21:17your lenses clean
21:18to avoid any issues.
21:20If water gets
21:21behind your lens,
21:22germs or chemicals
21:23like chlorine
21:23can get in there
21:24and cause trouble.
21:26At best,
21:27you might end up
21:27with sore or itchy eyes.
21:29Worse,
21:30you could get conjunctivitis
21:31from a bacterial infection.
21:33In rare,
21:34serious cases,
21:35you might even face
21:36infections which can
21:37sometimes lead to blindness.
21:40Most people wear contacts
21:42in the shower accidentally
21:43rather than doing it
21:44on purpose.
21:45If this happens,
21:46close your eyes right away
21:47and carefully step out
21:49of the shower
21:49to remove your lenses.
21:50If your eyes feel sore
21:52or look red afterward,
21:54contact your optometrist,
21:56ASAP.
21:57Always use the cleaning solution
21:59your optometrist recommends
22:00to sterilize your lenses
22:01before putting them back in.
22:03But really,
22:04it's best to take out
22:05your contacts
22:05before showering
22:06or bathing.
22:08If there's one piece
22:09of home decor
22:10you should keep
22:10a close eye on,
22:11it's snow globes.
22:13They might seem harmless,
22:14but a family
22:15in East Hampton,
22:16Massachusetts
22:17would beg to differ.
22:18In a crazy turn of events,
22:20a snow globe
22:21sparked a fire
22:22in their apartment
22:23while no one was home.
22:25Luckily,
22:26quick-thinking neighbors
22:27and a swift response
22:28from the fire department
22:29kept the blaze
22:30from spreading
22:30through the entire complex.
22:32It was a normal
22:33Thursday morning
22:34when,
22:35around 11.30 a.m.,
22:37neighbors heard
22:37smoke alarms
22:38blaring in the apartment
22:39and dialed 911.
22:41Firefighters arrived
22:42to find the place locked,
22:44so they had to
22:44force their way in.
22:46Inside,
22:47they found a small fire
22:48on the coffee table
22:49and a room
22:49filled with smoke.
22:51There,
22:52they also saw
22:52the culprit.
22:53It was a snow globe.
22:55It was sitting
22:55just right on the coffee table,
22:57and the sunlight
22:58hit it
22:58at the perfect angle,
22:59magnifying onto
23:01some cardboard
23:01and styrofoam
23:02and setting them
23:03on fire.
23:04While it's not calming,
23:06fires started
23:07by magnified sunlight
23:08do happen.
23:10Many firefighters
23:10have seen blazes
23:11ignited by mirrors
23:13and magnifying glasses,
23:14so keep those snow globes
23:16out of direct sunlight.
23:18Better safe than sorry.
23:22All right,
23:23let's talk about
23:24fatal fruit.
23:25No,
23:26I'm not going to bore you
23:27with another lame list
23:28of the most poisonous
23:29fruits out there.
23:30Instead,
23:31I'm going to tell you
23:32about something
23:33heavenly tasty
23:34that can make you
23:35teleport to the heavens
23:36in a matter of seconds.
23:38Meet the coconut.
23:39This seemingly innocent fruit
23:41has a dark side.
23:43Coconuts are responsible
23:45for around 150 fatalities
23:47each year.
23:48These bad boys
23:49have a whole page
23:50dedicated to the fatal
23:51incidents they've caused.
23:53A full-sized coconut
23:54weighs about
23:553 pounds 3 ounces.
23:57And if you know
23:58a thing or two
23:58about physics,
23:59you'll understand
24:00that gravity
24:01makes them even more
24:02dangerous
24:02when they fall
24:03from trees.
24:04But it's not just
24:06falling coconuts
24:07you need to worry about.
24:08Consuming large amounts
24:09of coconut water
24:10can lead to
24:11sudden cardiac arrest
24:13due to hyperkalemia
24:14thanks to its
24:15high potassium levels.
24:17And while rare,
24:18there have been cases
24:19of anaphylaxis
24:20in people with
24:21coconut allergies.
24:22While the most common
24:24way coconuts cause harm
24:25is by falling
24:26and hitting someone,
24:27there have been
24:27some unusual
24:28incidents too.
24:30In December 1923,
24:32a man in Newcastle,
24:33Pennsylvania
24:34passed away
24:34while trying to
24:35crack open a coconut
24:36with the butt end
24:37of a loaded revolver.
24:39It went off
24:40and he was shot
24:41in the abdomen.
24:42You know those
24:43handy selfie sticks
24:44that help you
24:45nail the perfect shot?
24:46Turns out,
24:47they can be
24:47way more dangerous
24:48than you'd expect.
24:50These little gadgets
24:51have led to
24:52a surprising amount
24:53of injuries
24:53and even some
24:54fatalities.
24:55People have
24:56accidentally knocked
24:57themselves or
24:58others out,
24:59taken a tumble
25:00off cliffs
25:01and even been
25:02hit by cars
25:02while trying to
25:03get that
25:04insta-worthy pic.
25:06Some popular
25:07landmarks have
25:08even banned
25:08selfie sticks
25:09altogether.
25:10For instance,
25:11the oceanfront
25:12in Mumbai
25:12has said no
25:13to selfie sticks.
25:15India, by the way,
25:16leads the world
25:16in selfie-related deaths.
25:18Nearly 40%
25:19of the 49
25:20globally recorded
25:21fatalities
25:22over the past
25:23three years
25:23happened there.
25:25If you still think
25:26selfie accidents
25:27aren't a big deal,
25:28consider this.
25:29From 2008
25:30to mid-2021,
25:32a staggering
25:34379 people
25:35lost their lives
25:36while trying
25:36to get that
25:37perfect shot.
25:38So yeah,
25:39it's definitely
25:40something to take
25:41seriously.
25:42Okay,
25:43so right after
25:43being processed,
25:45plastic water bottles
25:46aren't the size
25:46you buy at the store.
25:48Even a gallon
25:48water bottle
25:49starts its life
25:50as a small tube.
25:52Later,
25:52it gets heated,
25:53inflated,
25:53and shaped
25:54into the bottle
25:55you know.
25:55Boy,
25:56I can relate
25:56to the heated
25:57and inflated part.
25:59Now,
26:00not all potato chips
26:01are actually
26:02fried potato slices.
26:03Some companies
26:04use a mix
26:05of potato flakes,
26:06cornstarch,
26:07and water
26:07to produce chips.
26:09This mix
26:09is then pressed
26:10into a dough,
26:11and chips
26:12are cut out
26:12from it
26:13with the help
26:13of shape molds.
26:14Then the chips
26:15are fried,
26:16which takes
26:17about 11 seconds.
26:18After that,
26:19all excess oil
26:20gets drained,
26:20and the chips
26:21are seasoned
26:22and packed.
26:24There's a legend
26:25that only two people
26:26in the world
26:27know the original recipe
26:28that gives Coca-Cola
26:30its signature taste.
26:31These people
26:32aren't allowed
26:32to travel together
26:33so that the recipe
26:35never gets lost.
26:36Even though
26:37it's just a popular legend,
26:38not many people
26:39are aware
26:40of all the ingredients
26:41of the world-famous drink.
26:44One of them
26:45used to be
26:45the cola nut,
26:46Hey,
26:47I used to be
26:47a cola nut.
26:48You can find
26:49these nuts
26:49inside the fruit
26:50of the cola tree.
26:52Each fruit
26:52is about the size
26:53of a chestnut
26:54and has between
26:55two and five
26:56cola nuts inside.
26:58The cola fruit
26:58and nuts
26:59are packed
26:59with caffeine.
27:02Nowadays,
27:03Coca-Cola
27:03is said
27:04to no longer
27:04contain
27:05the cola nut extract.
27:06It's rumored
27:07to have been replaced
27:08with artificial flavoring.
27:10But since
27:11the drink's recipe
27:11is such a closely
27:13guarded secret,
27:14no one knows
27:14for sure.
27:15Hey,
27:16maybe we can
27:16ask Pepsi.
27:19These days,
27:20it's quite simple
27:20to make a mirror.
27:22Producers take
27:22a regular sheet
27:23of glass
27:24as a base.
27:25Then,
27:25they apply
27:26a reflective coating.
27:27This usually means
27:28spraying a thin layer
27:29of either silver
27:30or aluminum
27:31onto the back
27:32of the sheet
27:32of glass.
27:33This process
27:34is called
27:34silvering.
27:37Some kinds
27:37of car wax
27:38contain
27:39carnauba wax,
27:40also called
27:41Brazil wax.
27:42That's a vegetable wax
27:43people get
27:44from the fronds
27:44of the carnauba tree
27:46growing in Brazil.
27:47To get the wax,
27:48the leaves of this tree
27:49first get dried
27:50and then beaten.
27:51Ooh, ooh,
27:52ow, ow!
27:53This is how you can
27:54remove the powdery wax.
27:57Now,
27:58pencils.
27:59First,
27:59their leads
28:00are made by
28:00mixing clay
28:01and graphite powder.
28:02This mixture
28:03is then baked.
28:04After that,
28:05pencil bodies
28:06are made.
28:07If they're wooden,
28:07the material
28:08should be chosen
28:09carefully.
28:10It should be
28:10soft enough
28:11to sharpen
28:11but tough enough
28:13not to break.
28:15When the pre-cut
28:16sections are delivered
28:17to the factory,
28:18they have grooves
28:18cut in them.
28:19These grooves
28:20will later accommodate
28:21the leads.
28:22Then,
28:22special glue
28:23is added.
28:24This way,
28:24the leads
28:25will stay in place.
28:26Next,
28:27every second section
28:28is sent to a special
28:29conveyor,
28:30and the leads
28:30are placed in the grooves.
28:32Then,
28:32another section
28:33is glued
28:34to the one
28:34filled with leads.
28:35We get a large
28:36multi-pencil sandwich.
28:38Mmm,
28:39sandwich,
28:39I'm getting hungry.
28:40The two parts
28:41of this sandwich
28:42get compressed
28:43and cut lengthwise.
28:44Then,
28:45they're shaped
28:45and form
28:46separate pencils.
28:49Lava lamps
28:50were invented
28:50in the middle
28:51of the 20th century.
28:52The magic
28:53happening inside
28:54is due to
28:55the right amount
28:55and type of ingredients.
28:57Two of them
28:58are oil
28:58and paraffin wax.
29:00The oil
29:00helps the wax
29:01heat up,
29:02and once it's heated,
29:03it starts rising up
29:04slowly.
29:05Once the blob
29:06reaches the surface,
29:07it cools down
29:08and sinks back
29:09to the bottom.
29:12Now,
29:12nutmeg
29:13is a strongly
29:14flavored spice
29:15used in many
29:16cuisines
29:16all over the globe.
29:17Despite its name,
29:19nutmeg
29:19isn't a nut.
29:20It's technically
29:21a seed native
29:22to the spice islands
29:23and East Indies
29:24tropical islands.
29:25Nutmeg
29:26grows on trees,
29:27and the seed itself
29:28is sealed
29:29in a shell.
29:30Once it's ripe,
29:31the outer shell
29:31cracks open.
29:34Chocolate
29:35comes from
29:35the cacao tree,
29:36which is native
29:37to the Amazon.
29:38These trees
29:39also grow
29:39in Central
29:40and South America
29:41and some other
29:42tropical climates
29:43in Africa
29:43and Asia.
29:45The seeds
29:46of the cacao tree
29:47are very bitter.
29:48They have to be
29:49fermented to develop
29:50the flavor
29:51you're used to.
29:52After this process,
29:53the beans get dried,
29:54cleaned,
29:55and roasted.
29:56The shell
29:56is removed,
29:57and crumbled bits
29:58of dried cocoa beans
29:59are ground
30:00to cocoa mass.
30:01This mass
30:02is then used
30:03in the production
30:03of all kinds
30:04of chocolatey things.
30:08In the past,
30:09people used to chew
30:10different types
30:11of aromatic substances,
30:12including beeswax,
30:14tree resin,
30:14or even aromatic twigs.
30:16But modern-day
30:17chewing gum
30:18is made of a natural
30:19latex-like ingredient
30:20called chicle.
30:22It gets extracted
30:23from trees.
30:25Modern marbles
30:26are made
30:27from glass.
30:28The first step
30:29is to melt
30:29recycled glass
30:30and previously
30:31rejected marbles
30:32that turned out
30:32to be too small
30:33or too big.
30:34About 15 hours later,
30:36the molten glass
30:37is ready for processing.
30:40A special cutter bar
30:41moves through
30:42the stream of liquid glass
30:43every half a second.
30:45It separates
30:46small pieces of glass.
30:47There are future marbles
30:49called slugs.
30:50The faster the cutter bar moves,
30:52the smaller the marbles are.
30:55After that,
30:56the still-hot slugs
30:57are sent through
30:58several constantly
30:59rotating metal rollers.
31:00They keep the slugs apart
31:02and also cool them.
31:03These ridged rollers
31:04also give the marbles
31:06their spherical shape.
31:07As for the marble's
31:08final coloring,
31:09it's determined already
31:11at the melting stage.
31:12That's when the air
31:13passes the coloring
31:14through the glass.
31:16You can find
31:18springs everywhere,
31:19from tools,
31:20electronics,
31:20and toys
31:21to pens and mattresses.
31:23They come in different forms,
31:24for example,
31:25torsion,
31:26wire,
31:26extension,
31:27or compression springs.
31:30When a spring is made,
31:31a steel cord
31:32is passed to a derailer.
31:34How thick this cord is
31:35depends on
31:36what kind of spring we need.
31:38The derailer
31:39unwinds the roll
31:40and sends the cord
31:41to a computer-controlled
31:42forming machine.
31:43That's where the cord
31:44gets coiled
31:45to the needed length
31:46and cut into pieces.
31:49Now,
31:50to produce tomato ketchup,
31:51one of my favorites,
31:52you need tomato paste
31:54or puree,
31:55sugar,
31:55or some other
31:56natural sweetener.
31:57Salt,
31:58spices,
31:59vinegar,
31:59and onion powder.
32:01First,
32:01the needed volume
32:02of the tomato paste
32:03is heated
32:03while being constantly stirred.
32:05Then,
32:06other ingredients
32:07are added as well.
32:09Before the ketchup
32:10is bottled,
32:11it has to go through
32:12several cooling stages.
32:13Meanwhile,
32:14bottles are already aligned
32:16and waiting to be filled
32:17with the ketchup.
32:18This usually happens
32:19automatically.
32:20At the end of this process,
32:21caps and labels
32:22are added to the bottles.
32:25Cashew nuts
32:26are rich in plant protein,
32:28healthy fats,
32:29and fiber,
32:30and low in sugar.
32:31But they're some
32:32of the most expensive
32:33nuts out there.
32:34And no wonder!
32:35The cashew tree,
32:36native to tropical regions
32:37of Brazil,
32:38produces a long stalk
32:40called a cashew apple.
32:41It resembles a small pear.
32:43Well then,
32:44why don't they just
32:45call it a cashew pear?
32:46Anyway,
32:47at the end of this stalk,
32:48there's a kidney-shaped nut.
32:51It's protected by a double shell
32:53that contains
32:54a poisonous,
32:54oily substance.
32:56It's the main reason
32:57cashews aren't sold
32:58in their shells
32:58like peanuts
32:59or pistachios.
33:00Cashews need to be dried
33:02and roasted first.
33:03This removes the toxins
33:04and makes the shell brittle
33:06and much easier to remove.
33:09Nail polish,
33:10as we know it today,
33:12is a rather modern invention.
33:13It became popular
33:15at the beginning
33:15of the 20th century.
33:17Different companies
33:18use different kinds
33:18of chemicals
33:19and ingredients
33:20to produce nail polish.
33:21But one of these ingredients
33:23is always the same,
33:25nitrocellulose.
33:26This substance
33:27is actually liquid,
33:28but it gets mixed
33:29with plasticizers.
33:30They make nail polish
33:31more flexible
33:32and allow you
33:33to wear it longer.
33:35The process
33:36of creating
33:37ice cream sandwiches
33:38is pretty simple.
33:39First,
33:40ice cream gets whipped.
33:41It's done
33:42to add some air.
33:43The resulting substance
33:44is then sent
33:45to the next part
33:46of the assembly.
33:47Their two lines
33:48of wafers
33:48are already
33:49sandwiched together.
33:50And ice cream
33:51is simultaneously
33:52injected between them.
33:54It happens so quickly
33:55that more than
33:56a hundred ice cream sandwiches
33:57can be made
33:58in a minute.
33:59Mmm,
34:00how many can I eat
34:01in a minute?
34:03There are all kinds
34:04of plastic brooms
34:05out there,
34:06but there's one type
34:07that's made
34:08from recycled
34:09plastic bottles.
34:10With people buying
34:11one million plastic bottles
34:12all over the world,
34:14it's a cool way
34:15to reuse plastic.
34:18Tires production
34:19is a multi-step process.
34:21Tires are made
34:22from more than
34:2215 main ingredients.
34:24Among them,
34:25there's synthetic
34:25and natural rubber,
34:27carbon black pigment,
34:28and chemical additives.
34:31Giant mixers
34:32stir these ingredients
34:33under high pressure
34:34and temperature.
34:35The final result
34:36is almost always
34:37thin rubber gum.
34:38It gets rolled
34:39into sheets.
34:40After that,
34:41tires get assembled
34:42on a special machine.
34:43Different kinds
34:44of cloth,
34:45rubber,
34:45and metal
34:46are used
34:46for the production
34:47of a tire.
34:48Finally,
34:49the tire gets cured
34:50in a special press
34:51under more than
34:52300 degrees of heat
34:53and high pressure.
34:55This process
34:55lasts for 12-15 minutes.
34:59When they make darts,
35:01the flight shafts
35:02are produced first.
35:0310-foot-long
35:04aluminum rods
35:05are put into
35:05a special machine.
35:06It has a few
35:07cutting tools
35:08that work from
35:08several angles
35:09at the same time.
35:11The rod turns
35:12into shafts.
35:14There are threads
35:14cut into each
35:15flight shaft
35:16so that it can be
35:17later attached
35:18to the dart barrel.
35:19That's the part
35:20you hold and fling.
35:21On the other end,
35:22a cross saw
35:23makes slots
35:24for the aero flights.
35:26At the same time,
35:28brass rods
35:28turn into the barrels
35:29on another machine.
35:31Grooves are cut
35:32into the barrel surface.
35:33This makes them
35:34easier to hold.
35:35And finally,
35:36they produce
35:36a dart point.
35:38It's done
35:38with the help
35:39of a hydraulic press.
35:40It forces pointed steel
35:42into the hollow part
35:43of the barrel.
35:44And darts
35:44all there is
35:45about how they make darts.
35:47of aero
35:47situational
35:47make darts.
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