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- เผยแพร่เมื่อ 6 ส.ค. 2017
- View full lesson: ed.ted.com/lessons/when-is-wa...
Water is refreshing, hydrating, and invaluable to your survival. But clean water remains a precious and often scarce commodity - there are nearly 800 million people who still don’t have regular access to it. Why is that? And how can you tell whether the water you have access to - whether from a tap or otherwise - is drinkable? Mia Nacamulli examines water contamination and treatment.
Lesson by Mia Nacamulli, directed by Rooftop Animation.
Not everyone in the world has access to clean fresh water. So be thankful for what you have, and never waste water.
True
Yes don't waste water waste all of your water 😂😂
Yeah 😪
@@samarthmadhukarnayak189 imagine being in somewhere like africa and there is almost no fresh water where you are, what do you do?! Be thankful for what you have.
I drink creek water very thankful for fresh Canadian filtered creeks and springs:)
Never in my life have I worried about drinking tap water. It might seem like something quite obvious, but not everyone can say the same. It is amazing how so many things that we feel are a "given" are actually things to be grateful for.
Our kidneys do not "clean water". They clean our blood by processing toxic metabolic substances. They have plenty to do even if the water we drink is clean :)
I have never drank tap water, at least not in my country. Because water is too contaminated here. When I was in Europe, I still felt weird drinking it 😂
Bienvenido al Holoceno in my country,everybody drinks tap water.I never had to worry about it being contaminated.
Bienvenido al Holoceno Here in germany everyone drinks tap water cause why waste money on expensive bottles? The only reason why i never drink tap water in the US is cause it tastes like chlorine .-.
I'm lucky to live in a state that has safe tap water from fresh water aquifers.
What did the ice cube say to the glass of water?
I was WATER before it was COOL.
Get out
Ethan Dat huh?
"Wet" a great joke! "Water" you say about more [Like Puns and Jokes]? XD
P no because the ice became cool after it was water
BOOOOOOOOOOOOO!
thank you,Ted this video have alot of research,script,animation, easy to understand this is pure of *QUALITY CONTENT*
Delvin Fernaldy Read the description. The script, research and wording, is by one person.
CombatRaven that is insane!
Delvin Fernaldy has a lot* *and* easy to understand*
The animation is done by Rooftop Animation :)
Triple Z 0,0,0
How do you know if the water is free from disease? Let your enemies drink it first
Tell Me This edgy
Tell Me This but then how would you drink the blood of your enemies
Tell Me This #Edgy
Or just give it to a dog and wait
That reminds me from the "two wolves" when that guy was said to him/her "the one you feed."
Be careful of the Dihydrogen Monoxide in the water
But... Isn't that water again?
Tesla-Effect
Most don't
[Yoshikage_Kira] 😂lol
I didnt understand
Bobby Derran I'm trying to get top comment everywhere so I can get subs, but only from jojo fans. NO NORMIES
It's amazing how when I get a question in my head of any subject, i can find a TED video about it.
it's amazing how when i don't have a question in my head, i can find a TED [or similar] video about it, to make me question it...
This somehow makes me thristy af
Hey you, person scrolling down the comments, stop it, go get some water! we know you're thirsty after watching this man talk about cool, crisp water.
Kevin Auraei *WHAT HAVE YOU DONE*
Me too but thats because it is about water
Stay hydrated
Dang me 2
Now I'm very much grateful that I've easy access to clean water😇
Yep. Sometimes I forget how lucky I am to have all my basic needs fulfilled.
This is a good simplifying of the water treatment process. It works well as an introduction to water purification, but if you want to pursue wastewater treatment there are a few more things you should know:
-Before any treatment, a grinder mashes physical material like toilet paper or diapers, rendering them smaller and subject to treatment.
-Sedimentation often occurs in two steps: *aeration,* when operators use an acid, base, and microorganisms to turn dissolved ions in water into gas and inject air to remove the gases. Sludge settles as sediment, and *clarification,* removes the sludge from the water. At my local sewage plant, aeration and clarification occur in two stages.
-Wastewater operators take water samples at various times during the day and conduct tests on them in a lab. Operators look to see how long sludge takes to settle--clarification should take longer than aeration. Conditions of the samples reflect what's happening in the tank.
-Some plants benefit from a *microfiltration* station, which catches microscopic material that sedimentation and filtration couldn't catch. Microfiltration has immense cleaning ability, but these machines are rare--my local plant has one, and it cost over a million dollars to build.
-Chlorine and ozone aren't the only ways to disinfect water. UV disinfection uses ultraviolet light to kill microorganism in treated water. All UV disinfection requires are some UV rods and a source of energy.
Source: I toured a sewage plant
This helped to gain knowledge. Thanks
Before this video, there was an ad for a water purifier
Ads go on videos which have similar topics in order to maximise audience interest. An add about ice cream isn't going to come up on a video about graveyards, for example.
+astalote czim What if it's a video about graveyards made out of ice cream?
pandapower lol
pandapower how in the world did that happen to you!?
{{()}}(BOOM)%}[}}}
😰
For the lazy people:
Make sure the water is clear and doesn't smell weird, so you don't die
3:11 Remember everyone, if you see letters in your water, don't drink it!
Gametron13 😁😂
My grandparents never drank purified water.Way back then,they used a claypot with a small faucet to store water that came from their well.Strangely,I remember the taste is quite distinct and very cool despite the humidity.
Absolutely beautiful. I love how your conclusion includes inspiring sentences which help feel how others feel when they don't have clean water! I've been subscribed for a long time now, and it's surely nice to wake up to this every morning.
When youtube is more educational than school
so, always?
ArrowTheWolf When has it not been?
Always has been
It reminds me of Matt damon in his interview, talking about his organization of offering clean water to countries with water shortages. So thoughtful:) And again, thanks so much Ted ed!
I used to drink from a hose even though I had perfectly good water inside my house. I was 5
what an amazing username.
username checks out i guess
unfiltered
I love this person’s voice
Hanz Zimmer - Stay can be heard playing in the background of the video. It's the main theme from the movie Interstellar.
TED is not just a free education organization it is an emotion; TED is love. If 'I think therefore I am' then I think because TED encourage me to do so...😘😘😘
It's hard to not procrastinate when there are so many educational and entertaining videos😔
TED ED: Take a Look At This Water
Me: Looks at my Water
*Almost Take a Sip*
TED ED: B E F O R E Y O U T A K E A S I P
Me: *Giorno Music Starts Playing*
Also Me: Dio!!!!.......
Your videos are very helpful. I show them to my students to support their learning in my classroom
*Thanks* for the explanation.
Watches video
Feels like I learned something
Friend asks what the video was about
Me: uh.... *watches video again
Underrated
This animation is AMAZING!
This is one of the reasons why Colorado is awesome you guys.
Soothing narration as always :)
Can't I just boil the water before drinking it to kill the germs?
The germs get killed in the stomach acids anyways
The method for cleaning water presented here isn't the only one.
In Germany tap water is forbidden to contain chlorine. You only have chlorine in some international hotels.
Ted Ed makes simple things very attractive by their presentation.
Thanks for educating us.
Call this a coincidence or not
before the notification of this video came I just drank a glass of water from our purifier and was about to calculate a general formula for impurity if the waste water is purified again and again and again
0:44 has fidget spinners
lol it is a fidget spinner
That's supposed to be a parasite, but yeah, it does look a lot like fidget spinners! 🤔
...I think it is not a fidget spinner but the shape is like so we call it... FIDGET SPINNERS!!!
Very good video, need more of this later.
There was an ad at the beginning about Bose headphones and also TED and I’m using Bose headphone and watching a TED. Video 🙏🏻
Thanks. Now I’m scared of my tap
Water you doing?
Glitch//Gaming Xtreme haha nice -,-
Hahaha
*facepalms* please spare me im just an innocent child :( *facepalms again*
Procrastinating
*Icee* what you did there
The animation is the best part of this video.
the PointOfView system thing would be so helpful for those in flint, michigan and drier parts of the world
I love my water purifier❤❤❤
My favorite part was when you said the point where water is safe to drink.
Never happened
They give amazing info
Beautiful animation!
So you're telling me I can't drink Flint water?
O
0:46 fidget spinners in the water
Janhavi Bhonge viruses indeed
Just...stop, please.
Vivi mannequin HAHAHAHHAYAHAYAHAHHAHAHAHAHHAAAHAHHAAHHHHAHAHAHAHHHAHAHAHA
I love this narrorator's voice. Also, Ted Ed restores my faith in humanity.
You forgot the microbilogical clear-process in the activated sludge tank (usually at the end) or before desinfection.
There are also quicktests for microbiological quality (semi-quantitative for CFU). But you are always safer to test water samples in an accredited laboratory for drinking water!
My water smelled like bleach.
Long story short I don't have a stomach anymore.
HJ ?
Someone grabed the wrong bottle
E X C U S E M E W H A T T H E F U C K
Thank you you made me spit the water on My brothers shirt
Wow, amazing animation!
The water situation in Karachi is a worth-while read
wot' in hydration
Ekho 7 wot in filtration and distillation
Wot n refrigeration
Hi... ugh I came from this icon called " internet explorer". And I was wonder how did the comment section use bold or itallics?
Arvie Reyes What
just drink some water. you'll be fine.
Bolding is to surround your word with italics, like *this*. Italics uses underscores like _this_.
_a_
*bold* _italic_
800 million! I cannot imagine how hard their lives would be.
finally ted knows what i was thinking about
Now Im scared to drink water
This is why i drink soda
The water used to make that soda is only clean because of these same properties. Regulations are what keep companies from not using untested/unsafe water.
he who controls the potable water, controls the universe!!!!
There's so much work that goes into making sure water is safe to drink, yet you still never know for sure. I suppose the best one can do is continuously use home filter systems.
I am thirsty now
The vocal fry is strong
Miss Nesraa *ahem*
Well most people I know like me don't drink straight from the tap we use those brita filter thingys that says it removes most of the lead and other metals so it's sort of better
I love your videos Ted-ed
Are you trying to sell us bottled water and water purifiers when our tap water is perfectly safe to drink ? XD
GiggitySam Entz Bottled water isn't any better than tap water, but I'd highly suggest you look up what is in your local tap water. You'd be surprised by how much doesn't get filtered out...
GiggitySam Entz bottles water is just tap water
GiggitySam Entz Not safe in majority of the world...
When is water safe to drink?
Answer: When you are in Japan.
Why
@@Aihoshino24 Japan has probably the best water purification technology and coverage in the world, almost all tap water from anywhere is drinkable
@Kimikenzie putra akbar taste like water
I just woke up! Im already to learn
Amazing background music :)
Good video, but could you please go back to things like the Voynich Manuscript and mythological origin stories and riddles.
Sachinr2204 there not a conspiracy channel their an education channel
Yes, but they do occasionally post those kinds of videos. It would help to diversify their content and maybe increase the views seeing as those videos attract the most views.
When is a president safe to trust?!?! 🤔😏👍
When donald trump is gone
DJayden how is he not to be trusted? You think Hillary would do better?
I think the hobo at the gas station I go to would do better.
Trump atleast didn't ruin The economy like other recent presidents *cough* Obama *cough*.
First of all, Trump hasn't even finished his first year as president. Second of all, Obama was faced with s fslling economy, but did bring it back up to what what it was before, if not better than, he achieved presidency. And third of all, look at his cabinet. Look at the fact he is already asking for money for his second campaign. Look at everything he has said about Hillary, about anyone who doesn't like him.
You can learn about this in Class 7th Science book of NCERT (CBSE). This process is being done in the Waste Water Treatment Plant (WWTP).
I love the music you guys use. Where can I find it?
Dissapointed Ted, you didn't even tell the viewers to boil their water first!
Darrell James They mentioned that the ancient Egyptians did it.
Kinda weird to say but if everyone had clean drinking water, that would be a HUGE overpopulation danger.
Bence Illes your actually wrong.
Bence Illes yes and no. As I see it, everyone having access to drinkable water would mean every place on earth is developed, at least to a point where a decent level of quality of life exists so people would have the act of procreation as a lower priority
This is one of the most sociopathic comments on TH-cam I've ever seen.
let me just direct you to kurzgesagt's overpopulation video
That's true indeed. But some places in Africa they have good quality water, and yet the population growth hasn't declined. Clean drinking water doesn't always bring development on other fields. :/
Any water filter/purifier (brand) recommendation?
Can you provide a link recommendation for water testing kits?
I hate ppl who reply to their own comment so much
Yeah I know right
The irony
When will my comment can get some likes?
Edit: OMG! I cant believe I got 27 likes. 😭😭😭
never~
Liking bcs we are kfamily 😂
ainatulmardhiahcute Haha hi there! What fandom r u?
You have 18 likes now.
I liked just because you're a kpop fan
'buys a water bottle in school' ah yes let me just get my water testing kit out before I drink it
Beautiful animation :O
TED you are the best in the world thank you so much
I will never take water for granted again. How fortunate I am to have clean water.
Great video
Здравствуйте! Спасибо Большое Вам за видео! Очень полезно! :)
Hello! Thank You Very Much for the video! Very useful! :)
Lol I got an ad for this video about knowing how clean ur water is for real.
At the right upper corner I got a water treatment facility ad
I love this vid!
TEDed please make a video how water systems are destroyed by mining. Especially in tropical areas where river systems are many.
I love ted ed
Video: how do u know its safe
Me: my teacher tells me
Well where I live the water is actually pretty good. But then we heard about the lead. It's about 10 feet of our water supply coming into the house. So spring water, and a big Pur water filter on the kitchen sink solved that issue.
make a video about desalinating seawater and its implication worldwide.
Flint Michigan
"I don't mind ads and I don't mind buffer but when ads buffer I suffer"
I've got myself a life straw.
A special straw that uses an advanced filter membrane to convert contaminated water into drinkable water.
I remember one of the common survival tips being drinking from running water. I wonder if it's actually safe to drink, or just safe compared too the other options.
I think that running water gets rid of one danger. Becuase stagnant water is a breeding ground for mosquitoes, you should never drink stagnant. But I don't think that would prevent other dangers. If the water is downstream from a poluted source or if it has those parasites.
Anybody know where I can find the soundtrack for this video? @TED-Ed
I always get water from a top and bring it up to a boil (and let it cool down) before I drink it. Is this good or
What would we do in hot weather without water?
That's one of the most traumatizing animations regarding miscarriage I've ever seen