Hi.
Wasting anything is awful.
And, one of the most important ones is fresh water,
and, with the growing population and how we waste water,
we are gonna drink ourselves dry.
[Faint sigh]
Seems I have to do another one of those rants.
So, buckle up, ladies! And don't skip!
In my last video, I talked about how we have overpopulated
the Earth and are destroying everything.
Then, I received some comments saying they don't like me to get political.
It's like you see your family members are peeing in your water supply
and you tell them: "We shouldn't pee in our water supply!"
And your grandpa says: "We don't do politics in this household!"
How's that political?
In that video, I compared how the population of India, China, and sub-Saharan Africa is growing
just because they are some of the biggest populations.
I don't mean that they're single-handedly increasing the population.
In fact, they are doing the same as everyone else.
You should really watch the late professor Hans Rosling's presentation
or, if you like a shorter explanation, watch--
--"Kurs-ge-satz" channel video.
They are both great presentations on how the world population is changing.
"Kirs-gizz"--whatever--is a beautiful science channel, anyways.
Basically, in old times, a couple would make six to ten kids,
a bunch of them would die, and two or three would make it to adulthood.
So, the world population was increasing very slowly.
Then, starting in Europe,
with the progress in industrialization and medicine,
families still made many kids, but, now, none of them died.
This resulted in an explosion in population.
It took a few generations for the couples to realize:
"S@#t, we never signed up for so many kids!"
They started making two or three kids and the growth stopped.
I see the same trend in our family tree.
Now, we are two brothers, with one, and two kids.
This is how things naturally unfold,
with Africa having the final explosion as they are advancing.
And, they will stop, too, as soon as everyone has proper sanitation, medicine, industry, and education.
And, everyone in the world must have all those or it's bad for everyone.
And the less fortunate people are not the problem anyway.
They don't waste because they can't afford to waste,
and can't afford to have things that make pollution.
It is us, the fortunate people, who can afford to waste and pollute.
We must correct our ways,
so, when the less fortunate become fortunate,
we can all live in harmony with our world.
So, as Dr. Rosling explained, even now, the number of new babies born every year
is not rising in average,
with some places shrinking and some growing.
But this number of new kids have to grow older, and replace the older and fewer generations.
And that's why the population will continue to grow.
They will eventually grow through all ages,
and, as Dr. Rosling predicted, the population will settle around the year 2100,
which is great news.
But, it will settle around 11 billion people!
That's terrible news!
I did say we have overpopulated Earth right now and some people disagree.
It's funny--they said:
"No, there's tons of unused land on the surface of the planet."
This is not a game of Tetris, or how many clowns we can fit in a tiny car.
It's not even about the unused space!
Haven't you seen the recent report from the World Wildlife Fund?
Human activity has wiped out over 60% of vertebrate animals in the past 50 years,
more than 80% in some places.
It's equivalent to killing of four and a half billion people,
and, in the same period, we have more than doubled our population.
The nature around us is going away, and we will be left with flies,
mosquitoes, and cockroaches and whatever that can adapt to us,
like, this... thing.
It reminds me of this meme:
"Our ship can't be sinking! My end just rose 200 feet!"
I still say we are overpopulated
because, at our current numbers, we clearly can't manage our destruction and waste,
Let alone 11 billion people!
But, if you can reach a point where we can manage ourselves well
and stop harming the world,
even at 100 billion, we won't be overpopulated.
[Exhaustion]
Well, all I can do is to educate--
[Funky music on background] --and give away scopes, thanks to Keysight,
and multimeters, thanks to Circuit Specialists!,
at the end of the video.
Anyway, one of the most important wastes is water.
Yes, the world around us is made of water.
But, 97 and a half percent of it is sea water not fit for human consumption,
and the world's fresh water is declining rapidly, as we are using it up.
And, when there is no fresh water, there will be war.
Many experts say that the global warming causing droughts in Syria is a cause of their current civil war.
And, in the meanwhile, we waste water like it grows on trees.
Did you know that making a T-shirt wastes 2,700 liters or 2.7 metric tons of water?!
Makes me feel awful for selling those stupid Full Bridge Rectifier shirts.
[Striking pan jingle] [Funky music] Get your merch at my Teespring shop!
Yeah, I'm not better than anybody.
But, maybe, I can find a solution here and there.
If we reduce our consumption while fighting the global warming,
the world would have enough time to replenish the fresh water.
And, I have a great solution!
What if we invent something to shut down the tap water, when it's not in use?
Hmm? Hmm?!
[Low-pitched voice] Yeah, there are infrared sensor faucets all over the place
like in restaurant washrooms,
or, there are mechanical foot valves, too!
-- You think you're such a wise ass, eh? -- Shut up!
Those restaurant sensors work awfully and, then, they piss some tiny water
that doesn't clean at all!
And the foot valves I've seen are either for one hose
or don't have the hot-and-cold control!
I want the control that you wouldn't have to replace your current faucet and taps.
And, for that, I bought this electric valve!
We can design some cool s**t with this!
The valve opens when you apply a 120V to it.
And, I have a foot switch that applies the 120V to my valve, like this.
(POP)
FU@#!!!!!
What the f@#k?
Oh, I f****d up.
This is the 12-volt DC version.
[Sigh] Stay tuned. I have to get the 120-volt version.
["Jeopardy!" theme music: "Think!"]
There.
These are 120 volts.
It's all wired.
[Clicks]
There.
Well, come to think of it,
having 120-volt AC under your foot in a wet bathroom is not quite safe, is it?
Well, that 12 volt valve was safer
or I could use one of those Force Sensing Resistors
or any pressure sensor that I could put and seal and design a circuit around it.
Well, it's good enough for a demo, though. [Plumbing sounds]
Just make sure that,
your valve is shut, closed.
S**t, what the hell?
[Water leaking]
What the hell?!
Oh, right! f**k!
[Wiping sound] Do you also turn backwards with your left hand?
[Piano music]
Let's turn on the valve and see if it is all sealed.
Oh, s**t!
Tsk!
It's leaking water from here.
Ah, damn it!
I need those sealing tapes, but I don't have any.
Damn.
You think I can seal it with electric tape, maybe?
Let's hope electric tape does it.
Otherwise, I'll have to go buy some of those...
...sealing tapes.
So far, so good.
[Grunting]
Well, it looks like s**t but, hopefully, it will seal.
At least, for a demo.
Ha! Ha-ha...
It is sealing! Nice!
Electric tape for everyone. [Snickers]
[Piano music]
[Exhales] There we go.
Professional plumbing done professionally.
Now, the question is: Does it work?
[Water gushing]
Of course, it does! Was there ever any doubt?
My foot switch is made of plastic, so it shouldn't shock you.
But, in any case, it's plugged into the GFCI switch on the wall and should protect.
Now, to measure the savings, I remove this drain
to measure the water usage.
[Water leaking] Ah, s**t!
Why did they use this stupid bend here that only collects dirty water and booger?
[Piano music on background] The S-bend or trap is invented by Alexander Cummings.
The bend traps some water in it that blocks the pipe
and prevents the stench of the sewers to return through the pipe.
[Piano music]
[Pitter-patter]
[Grunting] Okay.
All the booger water is collected.
[Streaming]
[Pitter-patter]
Oh, f**k! There's no drain!
Ahh, s**t!
Now, I just use a pot to measure the water usage.
Okay, now that everything's set, let's start with a simple task,
like washing hands, without foot control.
[Water gushing] Opening water. Soap, soap, soap.
Washing, washing, washing, washing, washing...
Rinse, rinse, rinse...
And done.
And, that's-- [Pouring water]
Three and a half glasses of water.
'Kay, starting over...
[Pouring water] With the foot control this t--
[Pitter-patter] Oh, f**k! I forgot the s**t!
Okay, foot control! Open water. Soap, soap, soap...
[Water gushing] Some water...
Wash, wash, wash, wash, wash, wash, wash, wash, wash...
[Water gushing] Rinse, rinse, rinse, rinse...
And, done.
And, this time, we have-- [Pouring water]
One and a half cups! That's huge saving!
Okay, let's do a morning ritual.
First, you pee and flush the toilet that wastes so much water already
because it's not the efficient kind!
[Sigh]
I'm the renter otherwise, I would have changed it.
They literally pay for themselves, they save so much water.
Well, at least, I installed a handheld bidet that saves so much water,
compared to the watering pots.
Well, that probably confused the hell out of the wiper community.
Anyway, no foot control.
You pee.
[Water gushing] You open water.
Soap, soap, soap...
Wash your hand.
Rinse, rinse, rinse...
Then, you-- [Washing face]
--wash your face.
Remove the eye boogers.
Then, you-- [Blowing nose]
--blow your nose.
And,
soap, soap, soap...
Wash your hand again.
Rinse, rinse, rinse, rinse...
And, you're done.
And, that takes 1, 2, 3, 4...
...5, 6, 7, 8...
...9, 10, 11...
Eleven and a half!
Okay, same ritual with foot control this time.
You open water. Soap, soap, soap.
[Water gushing] A bit of water.
Wash your hand.
[Water gushing] Rinse, rinse, rinse...
Wash face.
[Water gushing]
Remove the eye boogers.
[Water gushing] Remove the--
[Blowing nose]
--actual boogers.
[Water gushing]
Soap, soap, soap...
[Water gushing]
Wash hands.
[Water gushing] And rinse.
And, done.
And that's one, two, three...
Four cups only!
That's huge saving and doesn't cost much to make!
People, get on it! Make it a product!
♪ Giveaway time! ♪
[Funky music on background] Isn't it awesome how Keysight keeps letting me
give away these awesome scopes?
Hope they never stop.
To win one, subscribe to their channel, so you know how to use the scope and other electronic tips and tricks,
and either enter free from the link in the description
or consider becoming my patron at patreon.com and be in every draw.
And, thanks to Circuit Specialists, I like to give five multimeters to my patrons.
Maybe, not exactly this one, but I like this.
Circuit Specialists is a great store to get your tools.
And thanks to Keysight, another scope goes to Gimnazija Jovan Jovanović Zmaj in Serbia.
along with other tools they might need, purchased from the support of my patrons.
Thanks for your support.
[Beatbox]
Subtitles updated by Jeff Lauron and Burgercat