HOW IT WORKS | Fluorescent light, Garden tools, Toxic Waste, Nappies | Episode 32 | Free Documentary

[@zoelee7523]

Does anyone else watch these to fall asleep

[@charleslindberg829]

Yes. I do.

[@TheMudyOne]

They seem to have found the only factory that has so much human intervention for garden tools...

[@shaneclark5022]

what are you talking about? handmade tools are a thing

[@someoneelse7629]

It's a very brittish thing I guess, inefficient processes "like we always have done it" And also, when the cameras are not rolling, they are not retrimming shovels that are 3mm off, they are doing much of it for the camera...

[@TessaBently4]

@@shaneclark5022 😊r

[@johndoyle4723]

Engineers design and construct machines, Blacksmiths,and operatives use them, mechanics and technicians repair them. I am in awe of the Engineers who make these machines.

[@DrWhom]

yes, true, but etymologically an engineer is the person working the "ingenious device." The division of labour which you note came later

[@buatlastshelter5319]

I wonder if the gardening tool factory is still around, considering how easy those tools are mass produced thesedays

[@plainjane8870]

I thought that was so cool how they used water to cut and sound to clean with the shovels!!! 🤯

[@revelationtrain7518]

Amazing

[@wanderlustspirit4607]

If left above ground it can contaminate water BUT you bring it underground? Closer to the groundwater?

[@mr.dahliaking.202]

So, the filaments, more specifically, Cathodes, are the electrodes of the fluorescent lamp. They are coated in a mixture of different tri-oxides of different rare earth elements. The selective mixture, when heated wia/ the filament, takes the incandescent energy from the filament and uses it to emit electrons into the tube. These free electrons fly from one end to the other. Hense why the tube has two cathodes at each end. Since the common AC power supply is the sinusoidal wave, it plunges half of its cycle into the negative and half of the cycle into the positive half-cycle. This so called duty-cycle is what causes the tube to flicker and produce light. When the wave is at negative interval, the electrons stop flowing and the phosphor coating for a short period becomes dark. Then when the wave is at positive interval the one cathode start producing the electrons and they flow to the other ends of the tube. This is what causes the tube to flicker, the dark period of the phosphor and the lit period of the phosphor happens so fast that it produces the famous almost-unnoticeable flicker in these tubes. Basically, you can say, that with AC wave, the tube acts like a single diode rectifier, witch means it only lets power one way, and not the other, and hense it flickers. On the electronic ballasts the tubes are driven on DC witch is pine single positive interval wave, the tube is constantly lit and doesn't produce any flicker. The free electrons traveling at the speed of light trough the tube bombards the free flowing atoms of mercury vapor. When they do, the mercury atoms absorb that energy and the electrons dissapears from existence. The now super charged mercury atom now can't contain all its electrons going fast around the neutrons and protons, and some of the electrons leaves the atom orbit and they appear as UV radiation. This radiation is the invisible spectrum of ultra violet light. It travels trough the tube until it hits the phosphor particles. The phosphor absorbs this radiation and in the process of absorption it produces the light photon in the transformation of the energy absorbed. Now the photon leaves the tube and travels to light our room. This is the invisible dance that happens in every fluorescent tube to make it light up.

[@chillybrit2334]

The flicker is almost unnoticeable unless you are in a workshop with rotating tools (drills, lathes etc.). That imperceptible to the human eye flicker can cause such tools running at high speed to appear stationary. Very dangerous to the unaware. I'd imagine the same must be true for LED lighting?

[@mr.dahliaking.202]

@@chillybrit2334 yes, the cheap led tube replacements that use either a single diode rectifier or just a plain capacitive dropper flicker really badly. The moderataly priced ones uses full bridge rectifiers and capacitor filters to make the light being produced continues and no flicker is produced. In old soviet and british fluorescent fixtures, that used two lamps, they had two different preheat ballasts. One just plain simple inductive one, and the other with auxilary winding that connected to the lamp circuit wia shunting the started in series with a lamp and one of the mains wires that connected to the ballast was coupled with a capacitor. The combination of these two ballast elliminated the flicker, because the other ballast with auxilary windi qas called semi-resonamt ballast, and it shifted the synosoidal wave 120 dagrees so the dark period would be pushed forward. This way when one tube had a dark period, the other one was lit, and vice versa. This almost elliminated the flicker and in schools it was really good cause the students eyes would't get too tired from the flicker.

[@chillybrit2334]

@@mr.dahliaking.202 Great info! I didn't know those two lamp fixtures were setup like that. A single diode rectifier would result in a 50% duty cycle on the DC output right? Could you mitigate that with lots of capacitance to smooth it to some degree?

[@chemisax]

It says how it works, but in reality is how it's made

[@killerwar1]

Shhhhh, your giving away the secret!!

[@MottyGlix]

@@killerwar1 *you're How it's assembled.

[@shaneclark5022]

the subject; "it" is british People. *how british people work* its british humor i "GET IT" its just not funny to me.

[@wanderlustspirit4607]

I just love how the tubes explode with you throw them on the ground.

[@standardaussie]

Yeah but run from that dust though mate, pretty sure there's phosphorous and definitely mercury in them.

[@sohelparvez764]

Cute baby💓💓💓💓💓💓

[@fatjaysgarage]

Did anyone notice the hard core guy stick welding without gloves on.... he must have been the boss just doing one for demonstration... if you weld without gloves for just 30 min or so you would be burned up

[@someguy4915]

Bullshit, unless you stick your hands onto the material after it gets hot as shit you really have to try to burn your hands by not wearing a glove...

[@stanervin6108]

That's no big deal. But drilling into stone overhead without goggles? That's one tough guy! Bet his eyes look like mud puddles.

[@ItsMrAssholeToYou]

@@someguy4915 He was referring to the intense UV emitted by the arc causing sunburn, genius. I bet it never occurred to you that it might be something beyond your first thought.

[@JMS-2111]

Note that he said, that if you're concerned about the mercury vapor in the light, that it is such a small amount, that it is not considered "VERY" dangerous. So it is dangerous, just not enough to kill you if one breaks, but run for the hills if they all blow and release their contents.

[@andreiandrei8402]

I have watched all 31 episodes

[@chrisroebuck-yf5sz]

Lol no one uses them long bulbs anymore they got the long led ones now

[@choe627]

There's optional replacement LED tubes for the 77VAC ballast tubes that plugs streight in. I recommend a simple rewire of 110VAC to either end of the tube and REMOVAL of the ballast. LABEL the light fixture for LED lamps.

[@shaneclark5022]

youre a terrible troll.

[@taiwanluthiers]

Most people don't have the skill to do that. So that's why they make direct replacements. If you mess with a fixture some idiot may just put a regular tube there. There's a reason why certain sockets have certain shapes, it's to idiot proof things.

[@MsJinkerson]

In Canada and the U.S., it's all stamped out in one piece and shaped and tempered

[@someguy4915]

I think everywhere they make shovels/garden tools that cost less than 100 dollars they'll just mass-produce them in a stamp/press that in one blow shapes and cuts the piece before a robot sticks a stick into it and done. These look like they'll be so expensive no gardener will ever buy them...

[@brettb.7425]

Nappies (I think he said) vs diapers. It’s cool to learn what other countries call many different items.

[@DrWhom]

The French say couche which simply means layer.

[@poepiebuitendijk9169]

All those nappies in a landfill 🤨🤨🤨

[@rext8949]

What happens in case of seismic activity? They paid a terrible price at Fukushima Japan when the tsunami inundated the nuclear plant .What about a nappy for a runny nose ?

[@glenngoodale1709]

You guys feel like part of the family

[@PrimeAlex35]

I hope mercury guy gets paid a pretty penny for that job

[@shaneclark5022]

if hes not an irish catholic, guff-speaking slack-worker, He will.

[@DYLANTRIES]

Funny how they keep saying that heating up the steel hardens it lmao

[@fourkings7897]

I laughed so hard at that,

[@stanervin6108]

Hahaha! Must be some new blacksmith 'magic' they teach only to 'engineers' !

[@standardaussie]

It does though? Just not at the time of heating

[@stanervin6108]

That's a shear, not a guillotine @9:58

[@BarneySaysHi]

The guy welding the socket to the spade is missing a glove I think...

[@shaneclark5022]

no i always have my right glove off to hit the trigger and the left glove acts as a sheild from UV burns

[@monoshock57]

LED's replaced fluorescent bulbs

[@chillybrit2334]

I thought the same thing in the first 1min 30secs. Then I thought again, this is actually documenting history. For decades fluorescent tubes lit workshops and offices in all their flickery glory. The first energy saving lamps to replace incandescent lamps in the home were Compact Fluorescent Lamps (CFL) - those spiral wound tube things that fit a regular lamp outlet. Horrid things in retrospect, took time to come up to full brightness and the light colour was generally ghastly. On top of which.. OMG Mercury!! If one smashes please put on a Hazmat suit immediately... at least according to the doomsayers. Then came the LED revolution which in the early days promised much but delivered overheating lamps that expired quickly with poor light colour again. The technology has come a long long way in a relatively short space of time since then. I guess TLDR; I should have just wrote - this docu section on fluorescents is accurate and dates to when the docu was made.

[@fredflintstoner596]

Mrs Richards: "I paid for a room with a view!" Basil: (pointing to the lovely view) "That is Torquay, Madam." Mrs Richards: "It's not good enough!" Basil: "May I ask what you were expecting to see out of a Torquay hotel bedroom window? Sydney Opera House, perhaps? the Hanging Gardens of Babylon? Herds of wildebeest sweeping majestically past?..." Mrs Richards: "Don't be silly! I expect to be able to see the sea!" Basil: "You can see the sea, it's over there between the land and the sky." Mrs Richards: "I'm not satisfied. But I shall stay. But I expect a reduction." Basil: "Why?! Because Krakatoa's not erupting at the moment ?

[@kimchi_taco]

is it the last ep?

[@TechNiVoltisgr3at]

He put on a protective mask... But not correctly

[@jeffreyclark3299]

Interesting use of the word "engineer". More of a "blacksmith" than engineer.

[@MsJinkerson]

A glass factory is great to work in is a place where if you break it you don't buy it

[@olsmokey]

Why don't they say ultraviolet light instead of "radiation". Saying "radiation" gives the impression that it's radioactive, which it's not.

[@DrWhom]

light is EM radiation

[@xochj]

Radiation is invisible eh? So light isn't radiation? Why didn't they just script "ultraviolet"?

[@PhilippeCarphin]

Maybe it was worded differently and they changed it to "radiation is invisible" because they didn't understand the nuance of the original wording. Like if it said something like "it emits radiation, this radiation is invisible" and the narrator thought that the word "this" was superfluous. And yeah, just ultraviolet light, or something.

[@DrWhom]

Ah yes, but even a visible light ray is invisible unless its axis is aligned with one of your photosensitive cells.

[@rhyuza5918]

GAH!!!! HE IS NOT HARDENING he is softening. you cannot HARDEN with heat >.

[@xochj]

Seriously!!! Anneal, work harden, repeat...

[@PhilippeCarphin]

I saw your comment and I was going to explain to you what heat treatment of steel is, but I after hearing the narration, I now think your comment is saying that the people who wrote the script made a really bad explanation of how heat treatment works.

[@MrBobWareham]

That is not a shovel, it's a spade!!

[@amyjojinkerson6745]

we don't make garden tools like this in Canada

[@douglastower972]

Why is he calling the workers engineers and not blacksmiths?

[@raulmario-theassistantbyal1533]

ep 33?

[@lo2740]

According to the narrator this garden tool factory only has engineers lol, rather blue collars only actually...

[@jessethepondhopper8370]

No led's are cheaper too use and last way longer than flouracent

[@mac8ist]

33? :)

[@MichaelDavis-zf6nt]

9 million nappies a day by UK babies. They must be stopped.

[@champanzee6486]

How do you want to solve it? Murder all the UK babies?

[@barmetler]

Vault 69 Really

[@wanderlustspirit4607]

The gardening tools manufacturing seems rather inefficient

[@hoss4557]

2019 LED's replace this tube. No glass no mercury either.

[@ijulesy]

leds are shit

[@MsJinkerson]

nappies really

[@TestTubeBabySpy]

The best way to avoid diaper rash is dont have babies!!

[@DrWhom]

"Radiation is invisibe" - not the point

[@standardaussie]

Some radiation is though, Your phone or pc screen is pumping out radiation too. Just in the visible spectrum.

[@bransongreen4274]

Instead of "Tube" he says "Chewb"

[@DrWhom]

British English - Americans say "Toob-uh"

[@kusumavathyk489]

More like chews-day

[@madeariartha2546]

glass chew..

[@dank1150]

Watch your use of the term "engineer".

[@jean-marclalouette8566]

Agreed - the guy he's talking about is more like a blacksmith than an engineer.

[@MsJinkerson]

you guys talk funny

[@zw2237]

Just imagine what these tools would cost today! Everything is made by machines in China today.

[@rogeronslow1498]

I've never seen such an inefficient manufacturing process as those garden tools. No wonder they can't compete with Asian imports.

[@rogeronslow1498]

@bitterman co Absolutely agree. It's all very well supporting local goods but when they are made by amateurs then they don't deserve support.

[@Bob-yl9pm]

a baby will use 5000 disposable diapers during its life, that's a lot of Poop!

[@Bob-yl9pm]

Did you notice the baby-testing woman smiling? We men also engineered Moms! :)

[@stanervin6108]

Even at five a day, that baby will be three!

[@taiwanluthiers]

Assuming the baby doesn't have down syndrome or other development disorder... because they can use diapers until they are at least 9 years old!

[@WEAREWORKETHIC]

My Work And I am Running very fastest All The Time Work And I Am Run Running very fastest Then supersonic okay WE

[@standardaussie]

🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣 Whacks a bag of arsenic with a mallet 🪒🗯💨 dust clearly explodes into the air. Better put a mask on to open the bag though. 🤦‍♂️

[@WEAREUPKING]

me work brain infinity most expensive okay

[@augustuswayne9676]

Brits call them nappies , American call them dippers. I wonder when they will come out with a bio degradable dipper?

[@MsJinkerson]

goofy looking shovel

[@templecharles4728]

The tart nation uncommonly fax because character comparably notice between a ethereal engine. damaging, eager giraffe