- 5 weeks ago
Scientific facts that show how little we know about this world!
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00:00So, why do flamingos stand on one leg?
00:03Or why are scorpions fluorescents?
00:06Because they like to!
00:08Well, actually, it's a bit deeper than that.
00:10I'll take you on a tour full of scientific facts
00:13about humans, animals, and even more.
00:20Meet Apu.
00:22Now take a look at his palm.
00:23Anything unusual?
00:25Well, pay attention to the fingertips.
00:27Apu and his family have a super-rare genetic mutation.
00:31So rare that it is only seen in very few families in the whole world.
00:36They have no fingerprints.
00:38This condition is called a dermatoglyphia.
00:40It became widely known only in 2007.
00:44Now you might say, it's not a big deal.
00:46Yet think about all the things we need fingerprints for.
00:50We unlock our phones with them, for instance.
00:52I mean, fingerprints are among the world's most collected biometric data.
00:56Apu and his family suffered from this genetic condition
00:59as the world relies more on fingerprints.
01:02In 2008, Bangladesh brought national ID cards for all grown-ups.
01:07And guess what the database required?
01:10A thumbprint.
01:11The employees didn't know how to proceed,
01:13so they eventually gave the ID card to them
01:16with a stamp on it saying,
01:18No fingerprints.
01:19Similarly, in 2010,
01:21fingerprints became obligatory for passports and driver's licenses.
01:24The family members now have a medical report to show to the authorities.
01:29But even with that report, they still face problems.
01:33In 2016, for instance,
01:34the government made it mandatory
01:36to link a fingerprint with a national database to buy a SIM card.
01:40SIM card companies didn't acknowledge Apu's condition,
01:43so he registered his card with his mother's name.
01:46They're not the only ones.
01:48A Swiss woman wanted to enter the U.S.
01:50Everything was legal.
01:52Her face matched the photo on her passport,
01:54but she had no fingerprints to compare to
01:57because she didn't have any.
01:59This rareness is inherited,
02:01so in a family, a couple of people can have it.
02:04Luckily, it's assumed that the mutation causes nothing more
02:07but a life navigating the world without fingerprints.
02:18When you picture the Tower of Pisa,
02:20it's probably leaning on the side a bit.
02:23Well, you might have to update that image in the future.
02:26The tower is straightening out.
02:28Although it looked cool and unique,
02:30the leaning degree of the tower was actually not a good thing
02:33considering the life of the tower.
02:36It was built in the 12th century,
02:38so it needed to be straightened.
02:40It was closed to the public
02:42and went under a sort of reinforcement.
02:44Engineers placed tons of lead counterweights on the ground
02:47and extracted soil under the foundations.
02:50All the efforts worked,
02:51and the tower got straightened almost two inches.
02:54Yeah, even that matters.
02:56Then the tower welcomed its visitors once again in 2001
03:00with safer and stronger foundations.
03:10Let's fly from Italy to Peru
03:12to see the famous Incan citadel, Machu Picchu.
03:15Have you heard the rumors that it's impossible
03:18to see the main parts of Machu Picchu?
03:20Yeah, 60% of the infrastructure is actually underground.
03:24So this is true.
03:26Incas don't want to be found.
03:28Although there are many routes, chambers,
03:30and cool stuff excavated,
03:32experts say this is nothing compared to what's hidden below.
03:36The Incas constructed deep structure foundations.
03:39Plus, they had an extensive crushed rock drainage system.
03:42In that way, they handle the weather conditions.
03:45These many historical excavations are already worthy enough
03:49to go and visit the impressive and breathtaking engineering mastership.
03:53Don't you think?
03:54Number four is again a fact about human inventions.
03:57And this one comes from our present-day Japan.
04:01Now, pay close attention if you're an ice cream fan.
04:04Because scientists in Japan invented an ice cream that doesn't melt.
04:08These scientists discovered a compound in strawberries.
04:11This compound can keep ice cream frozen even under the 86-degree Fahrenheit sun.
04:17Ice cream melts later than it's supposed to
04:19because this ingredient makes it difficult for water and oil to separate.
04:24Now, moving from sweet ice cream to another sweetness,
04:28this one belongs to the animal kingdom.
04:30Have you ever wondered why cats purr?
04:33Many people assume that when cats purr, it's a sign of happiness.
04:37Well, there's more to purring than we thought.
04:39Cats have this half-voluntary and half-instinctive thing to communicate.
04:43Yes, but also as a form of self-soothing and even healing.
04:48You see, cats usually purr when they're injured or go through a stressful experience.
04:54Kittens can't see or hear anything when they first come into the world.
04:57This continues for two more weeks.
05:00Interestingly, they begin purring a couple of days after their birth.
05:03They want to let their mommy know where they were and, of course, when they wanted to be fed.
05:09Cats continue to do so when they grow up, too.
05:11That's why your cat purrs when you put food on its plate at breakfast time.
05:15As far as the self-soothing part, you can think of it as a human crying.
05:20How we soothe ourselves in that situation is similar to cats purring in stressful times.
05:26Their purr is a therapy, not just for us, but for themselves and their kind, too.
05:31Some veterinarians say that cats lie next to each other and purr when one of them is injured.
05:36Vets call it purr therapy.
05:38The science for this is scant.
05:39But anyway, house cats purr at a frequency of about 26 hertz.
05:44This is in the range that supports tissue regeneration.
05:47In nature, cats lie around and wait for their prey.
05:51This is how they spend most of their time.
05:53In this scenario, purring may stimulate bones.
05:56They don't get weak.
05:57The same thing applies to humans, too.
06:00Purr-like vibration products have been made to use in therapy.
06:03Various researchers believe that putting a vibrating plate onto an astronaut's leg can help them retain bone density during long
06:11space missions.
06:12Yeah, purring was never just purring.
06:14The next one is about flamingos.
06:17When someone calls their name, people generally picture two things.
06:21One, they're pink.
06:23And two, they generally stand on one leg.
06:26There's a couple of theories about why they perch on one leg.
06:29They do it for hours, especially when they're sleeping or loafing, which means a midday rest or siesta.
06:35One theory is more popular among a majority of zoologists.
06:40It's sort of an energy-saving mode.
06:42They stand on one leg to prevent muscular fatigue.
06:46They're more balanced and stable on one leg compared to two.
06:49This is related to how their ligaments and tendons are.
06:52With one leg, it's easier to remain constant in position.
06:57You can't have it all is a saying applying to birds, too.
07:01Apparently, male birds can either be good singers or be very handsome.
07:06Scientists made that conclusion after analyzing more than 500 species of flying animals.
07:12Birds with colored feathers are more prone to have basic singing talents.
07:16And the ones who resemble their female peers with less attractive plumage have better singing skills.
07:23Now that you know male birds can't be pleasant to both your eyes and your ears at the same time,
07:28we can carry on with puffins.
07:30It turns out that their beaks can be fluorescents.
07:34Beaks of Atlantic puffins light up when viewed under UV light.
07:37These animals can see UV wavelengths themselves, too.
07:41So other puffins can detect each other's fluorescent beaks in the daylight.
07:45Something related to the ridges of their beak enables UV light to be absorbed and re-emitted as a glow.
07:51But experts haven't yet figured out what that thing is.
07:54The reason for having glowing beaks might be related to being attractive to other birds.
08:00Yeah, if you're a puffin, you don't want to have a bleak beak.
08:03There are other animals that light up under UV light, such as scorpions.
08:08Now, scorpions probably glow to support their vision at night.
08:12Scientists theorize that scorpions convert the UV light coming from the moon by fluorescing.
08:17They glow in a greenish-blue color, and it's no coincidence that this is the color they see best.
08:24Stick insects, millipedes, grasshoppers, and a certain kind of frog shine under UV light, too.
08:29Now I'm wondering how life would be if we could also have UV light vision.
08:36You wake up one morning, and while you're brushing your teeth, you notice a lump on the inside of your
08:42mouth, under your tongue.
08:44Immediately, you're concerned.
08:45You've never noticed this before?
08:48But not to worry.
08:49It's just Taurus mandibularis, a simple bony growth on the mandible of your mouth.
08:54If you have this extra bit of bone, you are part of the 40% of people with this anomaly.
09:03Although it can be more common depending on where you're from.
09:06For example, in the USA, this only occurs in 10% of the population.
09:13Bones are significant pieces within our bodies.
09:16We have 206 of them altogether.
09:18But some people may have an extra bone that they weren't expecting.
09:22We all have 12 pairs of ribs, equaling to 24 in total.
09:27However, 0.5% of people may have 25.
09:33The 25th is known as a cervical rib.
09:36Present from birth, it grows from the base of the neck, just above the collarbone.
09:41It can be on either side, as a fully formed rib, or just a thin strand of tissue fibers.
09:49There are some parts of our body that have remained with us throughout our evolution as a species.
09:54And some of us no longer share that same physical trait.
09:57The palmaris longus is a small tendon located in your wrist.
10:02By pressing the pads of your fourth finger and thumb, then clenching your wrist,
10:06the inside of your wrist will show the palmaris longus popping out.
10:12If this isn't visible, then you are part of a relatively small percentage that no longer possesses it.
10:18Lacking it has no effects on the strength of your grip.
10:21But being absent does give a decreased pinch strength in the fourth and fifth finger.
10:29It's believed that this muscle was actively used sometime in the evolutionary process of our species.
10:35It hasn't affected our bodies in any way.
10:37And it's merely a trait that some of us continue to have.
10:41It's also not dependent on either hand, regardless of which hand is dominant.
10:46Which hand do you use more often?
10:50If you're left-handed, you're part of the 10% club.
10:54And if you're ambidextrous, you're within the 1% to use both of your hands dominantly.
11:00Most ambidextrous people initially only use their left hand.
11:05Ambidexterity and left-handedness share the indication that they are using both sides of the brain.
11:11Right-handed people are generally dominant only to the left side of the brain.
11:17We all have tail bones, a reminder of our long story of evolution.
11:22We stopped using our tails around 25 million years ago.
11:26Although, while we are still growing as embryos, we go through the process of growing a tail.
11:32And after about 8 weeks, we lose it completely.
11:37There are some cases of humans being born with a tail.
11:41There are about 25 confirmed cases known to scientists.
11:45Those born with tails, though, won't have any real benefit, other than what the tailbone does for balance, anyway.
11:52The tails have no function other than physically being there, as they have no bones.
11:57The tails only consist of nerves, vessels, and muscles.
12:03Do you find that you are a picky eater?
12:06Do you think that coriander tastes like soap?
12:09Or you can't stand pineapple on pizza?
12:12This may be due to what kind of taster you are.
12:17Up to 30% of people are considered super tasters and will experience different levels of enjoyment or disappointment from
12:25their foods.
12:26Food that is bitter to the super taster will likely be sweet to average tasters, who make up 40%
12:33of people.
12:35There are also 30% of people who are non-tasters and won't find anything too exciting.
12:43Do you have the ability to identify musical notes?
12:46About 1 in 10,000 people can flawlessly distinguish perfect pitch naturally.
12:52Although this doesn't necessarily mean that they will be the next big pop star.
12:56They are just able to easily identify a specific musical note upon listening to it.
13:03Our eye colors are so diverse.
13:05The difference in light exposure to eyes throughout the world determines how much melanin is produced,
13:11which helps create many different shades of color.
13:14Since migration has become more common over the past 100 years,
13:18the variations of shades of color are numerous.
13:21Your genes, of course, also playing a huge part.
13:26We could list hundreds of different shades of eye color to show how many variations there are,
13:31but we'll limit the distinct categories down to six main color groups to keep this brief.
13:37The vast majority of people have brown eyes.
13:41About 79% of the world's population share this eye color.
13:45Once, all humans only had the brown pigmentation,
13:49until around 6,000 to 10,000 years ago, when humans migrated to Northern Europe.
13:54A mutation occurred, helping the eyes to adapt to the change of light.
14:00Blue eyes became the most common of the mutated coloration,
14:04and all of them today can be traced back to one ancestor from Europe.
14:08Today, blue eyes make up around 10% of the human population.
14:13Amber and hazel eyes each take up 5% respectively.
14:17Gray eyes are up to 3%,
14:18and the rarest of eye colors are green ones, consisting of only 2%.
14:26Rarer still is heterochromia iridum, where both eyes are of different colors.
14:32It's inherited and also affected by other genetic factors.
14:36Only 1% of the human population have this incredibly rare attribute.
14:42Although blue eyes have become more common,
14:45they're only more prominent within areas where people contribute similar variants of genes,
14:50since blue eyes are a recessive trait,
14:53just like red hair,
14:54which only occurs within up to 2% of the population.
15:00If you have red hair and blue eyes,
15:03you will be part of the smallest percentile for hair and eye variety,
15:07that makes up only 0.17% of the human population.
15:11Although green, gray, and hazel eyes are less abundant than blue,
15:16their genes are more dominant.
15:18So, within the small pool of redheads,
15:21blue eyes are less likely to occur.
15:25The melanin that has helped mutate eye colors
15:28can also have other effects on the human body.
15:30A genetic mutation that affects the melanin
15:33occurs in 0.005% of people in the USA,
15:38creating albinism.
15:41The occurrence differs in many ways throughout the world,
15:45the same as the effects with eyes.
15:47In albinism,
15:48the pigment production is altered
15:50to distribute major cells that affect the coloring of the skin,
15:54the hair,
15:54and the eyes.
15:57Most people with albinism will have snow-white skin,
16:01snow-white hair,
16:02and their eyes are a pale blue-pinkish color,
16:05the pupil itself being red.
16:08The redness comes from the light reflecting off the vessels in the retina.
16:14There is another form of albinism,
16:16which has a smaller amount of pigmentation,
16:18and the shade of skin and hair are slightly darker.
16:22Albinism occurs not only in humans,
16:24but practically all mammals,
16:26reptiles,
16:27and amphibians.
16:30Do you have a small hole at the front of your ear,
16:33above the ear canal?
16:34This is the preauricular pit.
16:36During the first six weeks of a child's development,
16:39long before being born,
16:41the auricle,
16:42which is the external part of your ear,
16:44will develop.
16:47The preauricular pit
16:48forms when the auricle doesn't fully fuse.
16:51This occurs within less than 1% of humans.
16:54Although there's speculation
16:56that having this little hole
16:57is the remnant of gills
16:59that we once had from our seafaring ancestors,
17:01there's nothing solid to confirm this theory.
17:06There are some unique things we have
17:08that give us an advantage in everyday life.
17:11Some people carry a gene mutation
17:13of the DEC2 gene,
17:15also known in proper English
17:17as familial natural short sleepers.
17:20Essentially, it means people within this 1%
17:23only require about 6 hours of sleep each day.
17:29Most people will probably feel burned out
17:31after a day of this,
17:32but those lucky enough to be within this 1%
17:35will be sure to make the most out of their day.
17:40Have you ever looked at a picture
17:41and noticed that the color of something
17:43was different to what someone else can see?
17:45It may be that you have a rare ability
17:47to see more colors than everyone else,
17:50possibly seeing 100 million different kinds of shades.
17:56If you do, you're part of the rare group of people
17:59called tetrachromats
18:00who have four cone cells in their eyes,
18:03unlike everyone else who has three
18:05and are identified as a trichromat.
18:10Studies are varied on who is part
18:12of this rare ocular phenomenon,
18:14though it's more prominent in females.
18:16It's suggested that up to 15% of women
18:19have this rare capability.
18:21Incredibly, it's an ability
18:23also shared with some species of birds,
18:25insects, fish, and other mammals.
18:30An old man stands in the bathroom
18:33peering into the mirror.
18:34His pupils are getting wider,
18:36his hair is standing on end,
18:38and his jaw drops in horror.
18:40No, he's not afraid of his reflection.
18:42He's just remembered
18:44the scariest day of his life.
18:45It's been 30 years,
18:47and he still can't look at mirrors without fear.
18:50The old man closes his eyes.
18:52The panic goes away,
18:53and the memories come.
18:56Matt and Lucy are about to spend a weekend together
18:59in the countryside.
19:00They want to take a break from the bustling city
19:02and hard work.
19:04Lucy finds a perfect place on the web.
19:07They book a cozy house right next to a lake
19:10for a modest price.
19:11They're delighted with such luck,
19:13and pay two days in advance
19:15without looking at the lease terms.
19:17The couple get into the car.
19:19They're smiling,
19:20and Matt is pressing the gas pedal.
19:23Our heroes arrive at the place.
19:25The reality looks exactly like the picture on the website.
19:28It's a beautiful two-story house
19:30right next to a lake and a forest.
19:33Everything looks great,
19:34but the owner is kind of weird.
19:36He's a tall old man with a sly grin.
19:39He gives the keys to Matt and Lucy
19:41and wishes them to have fun.
19:44Then the owner gets on the motorcycle
19:46and drives off.
19:47Matt and Lucy check the house
19:49and look around the neighborhood.
19:51Matt notices video cameras
19:53hanging on the trees.
19:54It seems the owner put them there for safety.
19:57Hope nothing like that is in the house,
19:59Lucy jokes.
20:00In the evening,
20:01they cook dinner and watch a movie.
20:03Matt walks into the bathroom.
20:05He washes his face
20:07and drops of water bounce to the mirror.
20:09He wipes the glass with his finger
20:11and notices something creepy.
20:13He touches his nail tip to the reflective surface
20:16and there's no gap.
20:19Matt knows for sure
20:20if there's a small distance
20:21between the nail and its reflection,
20:23it's a real mirror.
20:24But if the finger touches the reflection
20:27when there's almost no distance,
20:29it's a fake two-way mirror.
20:31This is when you see yourself,
20:32but someone on the other side is watching you.
20:36To know for sure,
20:37Matt presses his eyes against the mirror,
20:40cupping his hands around them
20:41so the light wouldn't interfere with the view.
20:43He's trying to see something on the other side.
20:46And he notices.
20:48Matt's sure there's another space behind the mirror.
20:51And somebody's looking at him.
20:54Shocked, he removes it from the wall
20:56and discovers a small dark room.
20:58What the...
20:59A jolt surges through his body
21:02as he hears Lucy scream from the neighboring room.
21:05Matt runs to her.
21:06She looks scared and points at the window.
21:08Matt sees the house owner watching them from the forest.
21:12Matt grabs Lucy's hand and leads her to the exit.
21:15We're leaving this place now.
21:16He presses the handle,
21:18but the door won't open.
21:20He tries to put the key in the lock,
21:22but something gets in the way.
21:23In most cases, if the key doesn't fit,
21:26you just need to grease the lock.
21:27But if the problem appears suddenly,
21:30you need to replace it.
21:31This is because someone tried to crack it
21:33to get into your house.
21:34But also,
21:36someone could insert a microphone
21:38or other device into the lock
21:40to eavesdrop on you.
21:42Matt tries to get out through the window,
21:43but it's locked from the outside.
21:45He throws a chair into the glass,
21:47but it's bulletproof.
21:49What's going on here?
21:51They look around and notice something else.
21:54On the floor, near the wall,
21:56there's dust and dirt.
21:57Check the wall if you see dust like this
21:59in a hotel or in someone else's house.
22:02This debris indicates that someone
22:04was working with a drill
22:05to install a recording device.
22:08Also, if you see an electric socket
22:10is installed unevenly,
22:11a telephone or a camera
22:13may be hidden behind it.
22:15There's a lamp hanging on the wall.
22:17Matt takes it off
22:18and sees a small microphone.
22:19This little thing
22:21in the fake double mirror.
22:23There must be cameras somewhere.
22:25Surveillance devices
22:26are often installed
22:27in the bedroom and bathroom,
22:29inside mirrors,
22:30and under the sink.
22:31Inspect all corners in these rooms,
22:33smoke detectors,
22:34and air vents.
22:35Usually,
22:36they put tiny cameras
22:37and recorders in switches,
22:39corners of shelves,
22:40and behind interior elements.
22:42The most common cliche
22:43is plush toys.
22:45If you don't want to check
22:46the room like that,
22:47you can follow Lucy's example.
22:51She switches the light off
22:53and turns on the flashlight
22:54on her phone.
22:55Any camera lens
22:56will flash in the dark
22:57if you point a beam of light at it.
22:59You will definitely notice it.
23:02Also,
23:02the front camera of your phone
23:04can detect infrared light
23:05coming from the lens.
23:07Inspect the entire room with it,
23:09and you'll see a tiny flash
23:10on the screen.
23:12Matt and Lucy
23:13find several cameras
23:14in the living room,
23:15one in the bathroom
23:16installed in the shower,
23:17and two in the bedroom.
23:19There's another way
23:20to find these devices.
23:21Almost all modern hidden cameras
23:23work via Wi-Fi.
23:25You can download special apps
23:27that scan the area
23:28and detect surveillance tools
23:29connected to the internet.
23:31So,
23:31if you think somebody's watching,
23:33you can just disconnect
23:34the Wi-Fi router
23:35from the outlet.
23:36Matt and Lucy
23:37do just that.
23:40Matt is about to call the police,
23:42but the phone doesn't work well
23:43for some reason.
23:44He was so keen
23:45on finding cameras
23:46that he forgot the main thing,
23:48digital security.
23:50One of the most common ways
23:52to get into your phone
23:53is Wi-Fi.
23:54Don't connect
23:55to unknown spots.
23:56When you do this,
23:57you automatically grant permission
23:59to access your device.
24:01Criminals can listen
24:02to your conversations,
24:03steal your data,
24:04and disrupt work.
24:06Also,
24:06never open
24:07unknown files and links.
24:09Matt and Lucy
24:10connected to Wi-Fi
24:11when they got inside the house.
24:13As a result,
24:14they can't make calls now.
24:17Locked in the big house,
24:18surrounded by hidden cameras,
24:20the heroes think about
24:21what to do next.
24:23Matt goes to the bathroom
24:24and walks into the small room
24:26behind the fake mirror.
24:27There's one chair
24:28and an iron door.
24:30It's locked.
24:31Meanwhile,
24:32Lucy examines the ceiling
24:33in the living room
24:34and notices an air vent.
24:36Perhaps she can go outside
24:37through it.
24:38She's sure
24:39that she will be able
24:40to crawl in there
24:41and call for help.
24:42Matt stands on a chair,
24:44removes the lid.
24:45Hello there,
24:46the scary owner says.
24:48His head is looking at Matt
24:49right out of the vent.
24:51Lucy screams in horror.
24:53Matt falls off the chair.
24:54He stands up,
24:55takes Lucy's hand,
24:56and runs away with her
24:57to the other end of the room.
24:59The man gets out
25:00of the ventilation.
25:02Matt throws a chair at him.
25:03Get away from us,
25:04you lunatic!
25:05The owner doesn't understand
25:07what's happening.
25:08You destroyed all the cameras.
25:10How do you think
25:11I can watch you?
25:12He asks.
25:13What the?
25:14Matt answers in shock.
25:16Wait a minute.
25:17You didn't read
25:18the lease terms,
25:19did you?
25:19The owner is surprised.
25:21He put cameras
25:22and microphones
25:23inside the house,
25:24and it's written
25:25on the website.
25:26Some people like
25:27to be watched.
25:28The owner thought
25:29Matt and Lucy
25:29were one of them.
25:31He shakes his head,
25:32opens the door,
25:33and lets them go.
25:34They get in the car,
25:36check the website
25:36of this house,
25:37and the entry about it
25:39is removed.
25:40Was there really
25:41any info about surveillance?
25:43They will never know,
25:44and they will never
25:45forget this weekend.
25:47From now on,
25:48they will always read
25:49the terms of the lease.
25:50The owner of the house
25:52looks after the departing car
25:53with a smile.
25:59Yeah,
26:00sometimes it happens for real.
26:02Some people install cameras
26:03in their houses,
26:04but they must indicate this
26:05in the description.
26:07So always read the terms.
26:09It's illegal to install
26:10cameras and microphones
26:11without the knowledge
26:13of residents.
26:14Robbers can install
26:15hidden cameras
26:16not only in houses,
26:17but also in public places.
26:19So be careful at ATMs.
26:21It's common knowledge
26:22that you need to cover
26:23the button panel
26:24with your hand
26:25when you enter the PIN.
26:26But not only
26:27because strangers
26:28can see it.
26:29Criminals can put
26:30a little hidden camera
26:31directly into the ATM,
26:33and thus see your PIN.
26:36Yes,
26:36cameras can get you nervous,
26:38but they also
26:39have a huge benefit.
26:40Cameras in buses,
26:42subway cars,
26:43trams, for example.
26:44They not only
26:45monitor the order
26:46and detect violators,
26:48but also watch
26:49the condition of drivers.
26:50Now,
26:51most cameras
26:51don't just record.
26:53They're equipped
26:53with artificial intelligence
26:55and various sensors.
26:56If you're driving
26:58and want to sleep,
26:59the camera will see it.
27:00The device will give
27:01a loud signal
27:02to bring you
27:03to your senses.
27:05Cameras recognize faces,
27:06which helps catch
27:07scammers, thieves,
27:08and hooligans.
27:09Such surveillance
27:10reduces the number
27:11of violations of the law.
27:13If a city camera
27:14breaks down,
27:15the program informs
27:16the special services.
27:18And the coolest thing
27:19is special sites
27:21where you can access
27:22many street cameras
27:23around the world.
27:24Just like that,
27:25you can observe
27:26what's happening
27:26on the other side
27:27of the globe
27:28from your computer.
27:29See you later.
27:29See you later.
27:30See you later.