26 Short Facts That Explain Lots of Confusing Things

26 Short Facts That Explain Lots of Confusing Things


Just when you think you have this world figured
out, all these questions pop up in your mind: why do car rides and rain make you sleepy? Why do airplanes have a hole in the tail? And which water extinguishes fire better,
cold or hot? Those answers and plenty more coming your
way! 1. Storm clouds may seem to turn dark, but it’s
just an illusion. Thin clouds on a sunny day let the light through
and scatter all the colors of the light spectrum. This makes us perceive the clouds as white. But the thicker clouds are and the more water
they contain, the less light they transmit. Thus, they look darker. 2. Leaves don’t really change colors – they
just lose their green pigment. The green usually masks the others (red, orange,
yellow), so without it, those warmer hues become visible. And leaves lose this green pigment (chlorophyll)
in the fall because there’s less sunlight the chlorophyll can turn into food. 3. Your own body makes bug bites swell and itch! When a mosquito breaks your skin, your immune
system perceives the insect’s saliva as a foreign substance and starts making histamine. That stuff sends more blood to the bite, which
causes the area to swell. Histamine also sends a signal to the nearby
nerves, making you itch! 4. Zebras probably have their stripes as protection
from bug bites. The stripes seem to dazzle the insects, and
they can’t make a controlled landing. They either come in too fast and try to avoid
the collision at the last moment, or they bump into the zebra and bounce off. 5. Most salt in oceans and seas comes from land. Rainwater, which is a bit acidic, flows over
rocks and erodes them. The water collects the dissolved salt and
other minerals, but it’s still drinkable at this point! Once it gets to the ocean, some minerals get
removed from the water, but not the salt. Additional saltiness comes from underwater
volcanic activity and hydrothermal vents. 6. Rain makes you drowsy because the sky is overcast,
and without sunlight, your body produces melatonin – the very hormone that makes you sleepy
at night. The rhythmic rain sound is comforting and
creates so-called “pink noise,” which decreases your brain activity and improves your sleep
quality. 7. The ocean isn’t blue, per se – it just seems
like it. Its trademark blueish hue appears because
the water absorbs all colors from the warmer part of the light spectrum – yellow, orange,
and red. This works like a filter that leaves behind
the blue-green color we can see. 8. Your dog licks you because it makes them feel
good! It releases endorphins in the animal’s body,
making your pooch feel safe, comfortable, and happy. It also relieves most of the stress your pet
feels. Plus, licking is one of the ways your doggie
can show you affection. 9. Cats regularly lick themselves to prevent
skin oils from gathering on their fur. But it also makes their coats less waterproof
than, say, a dog’s. That’s why when cats get wet, their fur becomes
very heavy, and they don’t like it one bit! 10. Your stomach “growls” when you’re hungry
because your digestive muscles are contracting to sort of warm up in preparation for a coming
meal. They continue to contract even after you eat. You just can’t hear it anymore because the
food in your stomach is muffling the sound. 11. No one knows for sure why we call it Black
Friday. Probably because stores now open in the middle
of the night, but originally, it was likely used to describe all the heavy traffic happening
on this day. 12. Cats love boxes so much because they make
great hiding places. No predator can sneak up on them from behind,
yet your cat can still observe its surroundings without being seen. Same goes for high places on top of tall furniture! (And, no, your cat’s instincts don’t care
if there aren’t any real predators in your house!) 13. Dogs kick their legs when you rub their belly
thanks to the so-called scratch reflex. That perfect spot your canine loves so much
is full of nerves that go straight to the spinal cord. When you stimulate them, it sends the leg
muscles an order to get rid of the irritation. By the way, it’s a reflex, so your dog is
probably as puzzled as you are when its leg starts moving on its own! 14. Driving already makes you drowsier after 15
minutes into your trip. The reason is your seat vibrating at low frequencies,
lulling your body and brain. And in half an hour, you can start having
problems with alertness – even if you’re well-rested! Unless you don’t get drowsy in the car. In that case, care to share your secrets down
in the comments? 15. Flamingos turn pink because they live on a
certain kind of blue-green algae and brine shrimps. This diet contains a natural pink dye that
affects the birds’ coloring. But originally, all flamingos are born with
gray feathers! 16. As people get older, their hair follicles
start to lose pigment cells. That’s why their hair gets more and more silver,
white, or gray. But this process doesn’t just happen because
of age – people can start losing their hair color at any stage in life! 17. You ever noticed the hole in the rear end
of an airplane? It’s connected with the aircraft’s smallest
engine that sits in the back of the tail. It provides the power necessary to start the
main engine. It also powers up the cabin electronics until
the main engines take over. 18. A comet’s tail is created by the Sun. Its heat turns some of the comet’s material
into vapor and releases dust particles trapped in the ice. Then, solar wind and radiation pressure blow
both the dust and gas away from the comet’s nucleus. It creates not one but two tails: a gas and
a dust one! 19. Most big space objects like planets and stars
are round because of gravity. It pulls all the material from the edges toward
the center. It’s equal around the entire object, smoothing
out jagged angles on all sides. But if a space body is too small, like an
asteroid, its mass and gravity aren’t strong enough to form a spherical shape. 20. The temperature of the water you use to extinguish
a fire does matter. And surprisingly, hot water can put out the
flames faster than cold. Cold water won’t start working until it absorbs
enough heat to achieve the boiling point of 212°F, and that’s a waste of precious time. Hot water is already near its boiling point,
so it starts to work sooner. But just FYI, the time difference is too small
to run around in search of hot water if you have a fire at hand. You can use cold water too! 21. Many emergency services use two flashing lights:
red and blue. The red one adds the feeling of urgency to
the situation. It’s associated with warning and danger and
is one of the most noticeable colors. But this color can get lost in heavy traffic
since most cars have red tail lights. That’s when blue comes in handy. Plus, using both red and blue lights helps
alert even colorblind drivers. Usually, when a colorblind person can’t see
red, they see blue, and vice versa. 22. Most cruise ships are white because they typically
sail in hot tropical climates. The white paint reflects sunlight better than
any other color and keeps the ship nice and cool. Same goes for airplanes up there above the
clouds with the sun shining directly on them! 23. You, on the other hand, sweat to keep yourself
from overheating. When your body warms up more than normal,
your brain reacts to this potential danger by releasing sweat from the over 2 million
glands scattered all over your body! It almost instantly lowers your body temperature,
even if you don’t notice it. 24. Bees make honey to have something to eat all
winter, when there are few or no flowers (their main food source). That’s why honey is packed with nutrients
and loaded with sugar – such high-energy grub helps bees survive the cold season. 25. The holes in some types of cheese are made
by bacteria used in the production process. When cheese is almost ready, these bacteria
release carbon dioxide. While escaping, this gas forms bubbles that
later become the cheese’s “eyes.” 26. Fresh rain falling on dry ground smells so
nice thanks to a unique mixture of ozone, plant oils, and bacterial spores. Oils gather in dry soil and rocks during a
drought. After a rainstorm, they mix and release into
the air. And, doesn’t it smell so good? Hey, if you learned something new today, then
give the video a like and share it with a friend! And here are some other videos I think you’ll
enjoy. Just click to the left or right, and stay
on the Bright Side of life!

100 thoughts on “26 Short Facts That Explain Lots of Confusing Things

  1. Why would you name all those facts and not say at the end that the smell after rain it's called petrichor? That would have been the icing on the cake.

  2. Who Else Is A True Fan Of BRIGHT SIDE
    🙋🏻‍♂️
    👇🏽

    Btw I’m Trying to hit 3k I will appreciate your help 🌟‼️

  3. Black Friday is the term used because after working so hard all year, the sales on this day help.the store show a profit on balance sheets. Red was used to denote negative and black was positive (profit). Not from pollution!

  4. I have an question from bright side plz answer this I be g u I know u won't but I'll start

    As you know gravity is the force that attracts an object on the earth surface but why do a ball which is attached to an threat returns back to the left when pushed to the side of right .

  5. Ok the driving getting tired one I'm gonna need honest I do not drive yes but my dad does his secret us energy drinks

  6. "black friday" is a throwback to old accounting. they used to use ledgers and red and black ink. most business operate in the negative most of the year, using red ink. so many people shop after thanksgiving that the business starts operating in the positive, using black ink. that's where the black comes from

  7. To stay awake even driving, keen an interest in traffic movements. They are Unpredictable.

    You Nicely explain the rain smell. I know where the pre-rain wet dust smell is from. And it’s an amazingly interesting fact. Call me. 🙂

  8. i can’t imagine how long it would take to make these because they have to animate (which is rly good) they also have to look up the facts PLUS they have to do editing and voiceover

  9. The vibration at low frequencies doesn't make me drowse, it makes me dizzy. And in half an hour, I will PUKE 😵🥴🤢🤮🤮🤮

  10. It's called black Friday because that's the day the accounts go out of the red and into the black . Black being incoming or profit and red being out going or owed money

  11. I agree! If they get the Black Friday deal wrong, the definitely get other things wrong! Goes to show you how people are losing information that has been known a very long time and what about all the young people listening to this garbage? We are doomed!

  12. Actually fund driving actually helps me stay awake. Constantly looking at the road keeps my mind alert. Also, enjoying the scenery and land marks help keep my mind active. I also like to drink coffee and listen to YouTube videos. I of course pull over when I switch videos to stay safe.

  13. My trick for staying awake in the car is to have a loud Inline 6 engine or V6 to a W18 cylinder engine

  14. Dear Bright Side,
    Please make videos about women in the STEM fields, both past and present, including but not limited to Rachel Carson, Elizabeth Blackwell, Clara Barton, and Rosalind Franklin. Please, and thank you.
    Sincerely, Marina Soto

  15. Yes I did! Well, I always learn, but in this teaching I heard that hot water extinguishes fires quicker? I don't believe I've ever heard that fact before, and a few other things as well, such as.😊 pink noise, I always heard white noise? Hmmmm..
    I love the unique way you sneak in information in other videos so we all can learn, as you know it takes about 3 times for our brains to hear,( okay, … my pea brain….) to learn or retain information.
    "It is so 'stealth' of you guys"! I heard that expression today! Lol, it just made me giggle, but completely accurate in your brilliant teaching!….

  16. Can we have a video on alternative facts? This would be such a weird video concept for americans. Facts are not something they are too familiar with nor do they seem to care much about them. A fact is an undeniable truth & anything that opposes a 'fact" would be not be true or in modern america "alternative facts".

  17. Zebra stripes also confuse lions. When a bunch of Zebras are all running in a herd, the stripes make them look like one mass and it doesn't allow the lion to focus on one zebra.

  18. The real reason or at least the more significant reason for Zebra stripes is evidently too obvious for scientists to figure out. It is because, if the Zebra is moving at all, the stripes confuse any landing attempt and perhaps also seem to flies to be something coming at them-to perhaps swat them-so they tend to move away without landing.

  19. For driving a simple cushion, pillow or just varying padding in the area of the tailbone(if you seat up straight while driving) is a excellent anti-verbration thing to help stay focused……..but as people body types, seating positions and what they find comfortable varies it may take a few tries before you find your ideal item(but don't use any to thick items that left you to far from the drivers wheel or pedals for safety)

  20. As a kid, i really like going into boxes because it feels really cool and safe in boxes so i guess that's why cats like it too because it's fun

  21. Learned from a police man a real good man, eat sunflower seeds. Shelling them keeps you alert.
    Works very well for me. If I don't I get sleepy within 20 minutes of driving.

  22. I don't understand the hot/cold water thing. It seems to me like the coldness of the water, as long as it could still flow, would be a better opposite against the fire's heat, smothering it more thoroughly/faster.

  23. I dont get drowsy after driving, and I drive quite frequently for long periods. Here are some tips to avoid being drowsy.
    1. Play music
    2. DO NOT use the heater
    3. While driving stay active and text or talk on the phone.
    4. DO NOT use your blinkers, this is universal and will cause other drivers to honk at you giving a startle that is sure to wake you.
    5. Make sure to cut people off, again will cause other drivers to mouth and/or honk at you.
    6. Run red lights near police officers
    7. speed … 😉

  24. Colors of the emergency vehicle lights matter in my world. EXAMPLE: Fire is orange, health is white and police is blue. Note: Commercial trains DON’T have tail lights, they are too shiny so what is the point? They dooo have VERY bright head lights though.

Leave a Reply

Your email address will not be published. Required fields are marked *