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Primitive Technology: 4 years of primitive technology

Payback says...

I still want him to make an April 1 video where he takes a bunch of mud, sand, and unsmelted ore, mixes it up, kiln fires it, and smashes apart the outer layer revealing a Nokia 3310.

Cenk Uygur debates Sam Harris

Cave JohnsonTalking about User DLC Chambers

ReverendTed says...

Because I am a nerd, the subtitles:

Lunar Materials Fluidification and Firing
Feldspar Extraction Technique and Belt-Driven Flame Kiln are proprietary to Aperture Science. Do not describe the events depicted in this scene.

Ballistic Turing Test
"Polylunarcarbonate ballistic redisintermediation" is a registered trademark of Aperture Science.

Diamond-Assisted Panel Abridgement
In the event of a clogged diamond disposal chute, DO NOT attempt to clear diamond hole.

Packing Simulation Trial
Please note: these panels are intended for simulated transportation environments only, and should not be used in an actual packaging event.

Completed Test Chamber
This test chamber was constructed for promotional purposes only, and may not accurately reflect the actual panel distribution cost of an official Enrichment Center activity.

Extra-Earth Outsourcing Initiative
Disclaimer: Any resemblance to Earths not residing in the public domain is guaranteed by the physical laws of multiverse theory, and therefore not actionable.

How It Works
This is not a dramatization. An Earth where sea mollusks have created an advanced land-based society with wholly inappropriate bipedal keyboards is guaranteed to exist.

The Multiverse and You
A Note About Getting Back to Work: In the event that you are reading this, get back to work.

(Throughout)
This Aperture Science Extra-Earth Outsourcing and Perpetual Testing Initiative Employee Orientation Video is for internal use only. Do not distribute to other Earths.

Casting a Hexagonal Pewter Stool at the Beach

poolcleaner says...

You can also make a primitive kiln using the fire pits (or just dig your own holes) at the beach. I prefer this to an actual kiln, because then the entire process of sculpting and firing is DIY, like real life minecraft.

Lann (Member Profile)

BoneRemake says...

A number of classes and you are able to fire things in the kiln. I just want to get some clay and work it and get it fired. Pay'em 50 dollars or whatnot, they will not do it. I can understand, they would have too many people wanting the service, they are not a big shop from what I can tell.

Elitist assholes.

In reply to this comment by Lann:
What does the membership include?

In reply to this comment by BoneRemake:
The pottery guild wants 130 dollars for a membership and I have to put my name on a list to become a member....

Fuck you pottery guild.

Elitist assholes.


From Liquid Fire to Metal Sword in Minutes

Understanding Quantum Physics

Raaagh says...

Im sorry, but WHAT on earth is this about the standing waves being attached to the sides of the kiln?

Otherwise a very nice path from 18th century to the origins of Quantum Physics. I had to chuckle to myself, when I realised I never understood that "Quantum" was refereeing to the discrete quantities of energy that particles occupied - it had always just been a name .

Greatest Racing Motorcycle ever: Britten V1000

therealblankman says...

>> ^cybrbeast:
Why did the technology die with him? Surely more could be built?


One person with extraordinary vision, coupled with technological know-how, engineering brilliance and the ability to get his hands dirty and plain-and-simple build what he imagines is a rare thing.

In the case of the Britten bike, this is a partial list of what made his bike special:

1) Partial girder-link front suspension with adjustable anti-dive properties.
-fork-type suspensions compress under braking and extend during acceleration, changing the geometry and handling characteristics of the machine quite drastically during the different driving modes. Britten's suspension design allowed him to control pretty much all variables of suspension geometry under changing load, making the bike behave however the rider wished.
- The rear suspension, while perhaps not as revolutionary, was a beautiful piece. It was essentially a carbon-fibre banana swing-arm with a linkage to the adjustable shock/spring assembly. If you look at the bike you'll see that there's no spring/shock assembly near the rear suspension, rather note the spring/shock assembly directly behind the front wheel- this is for the rear suspension! The front shock assembly is hidden in the front suspension linkage and cowling.

2) The engine itself was a stressed-member.
-While certainly not unheard of, Britten took the concept to an extreme, essentially eliminating the frame from the motorcycle. The front and rear suspensions essentially bolted directly to the engine, thus saving many kilos over contemporary designs. Take a look at any current MotoGP or Superbike- most use the engine as a partial stressed-member, but they all have frame members linking the engine, steering heads and seat-assemblies. Britten really only had a vestigial sub-frame for the rider's seat.

3) Well-controlled aerodynamics and fully-ducted cooling system
-Britten paid close attention to airflow over, around and through his bike. Look how cleanly the rider's body tucks into the bodywork. He paid close attention to details, notice how clean the entire assembly is- no exposed wiring, nothing dangling into the airflow, that incredibly sleek rear swing-arm and rear tire hugger. This keeps the airflow smooth and un-disturbed. Motorcycles aren't terribly aerodynamic machines in the first place, but a wise man once said God is in the details.
-The engine itself is a water cooled design, but where's the radiator? It's in a fully-sealed duct directly beneath the rider's seat. High-pressure air is inlet from the front of the bike, through the radiator and is exhausted into the low pressure area beneath the rider and above/ahead of the rear wheel. Greater cooling equals higher power potential.

4) The motor
- 999cc 60 degree V-Twin, belt-driven DOHC design, twin injectors per cylinder, sophisticated electronic ignition, hand-made carbon fibre velocity stacks, wet sump. The motor was designed to breathe hard, pumping out torque and horsepower (166 hp @ 11800 rpm- not sure about the torque figures), and run cool and reliably under racing conditions. Nothing here that any other manufacturer couldn't have figured out on their own, but Britten had the insight and the will to make the best motor in the world at the time. The 60 degree configuration was, I assume chosen for packaging reasons. Normally this configuration would have bad primary balance characteristics, but Britten engineered his to such tight tolerances that the engine ran smoothly right up to redline (12500 rpm) without using a balance shaft.
I'll also point out here that Britten wasn't above using someone else's part if it was better than he could make himself- the gearbox was from a Suzuki superbike, and the cylinder liners and voltage regulator (both of which failed at the Daytona race in '92- the latter costing Britten the win) were from Ducati.

5) Carbon Fibre
- While Carbon Fibre had been around for 2 decades or so at this point, nobody had used it so extensively. Britten used the material for bodywork, wheels, engine parts, suspension girders and the rear swing-arm. There is still no other bike, not even the current Ducati Desmosedici MotoGP bike, that uses so much of this exotic material. The stuff then, as it is now, was hugely expensive and challenging to engineer for different applications. Britten made everything himself, in his garage, figuring it out as he went. This kept the total weight of the bike to a hugely impressive 138 kg.

Keep in mind that he did all of the above in 1991 and 1992, with the help of several neighbors and one part-time machinist, in his backyard shed! He made the bodywork by hand, using a wire frame and hot melt glue, crafting the wind-cheating shape and cooling ducting purely by eye. He cast the aluminum engine parts himself, heat-treating them in his wife's pottery kiln, and cooling the heat-treated parts with water from his swimming pool!

Ducati, Honda, Kawasaki, Suzuki... any one of these manufactures could today reproduce and expand on what Britten accomplished almost single-handedly. None of them will- there's too much at stake for them. It's far safer to stick with the tried-and-true, making small evolutionary changes over the years. A true visionary achiever (to coin a term) like Britten comes along only every once in a great while.

I suppose that this is what was really lost when John Britten died... vision, engineering acuity, hands-on knowledge, and pure will. Touched with a little craziness.

cybrbeast (Member Profile)

therealblankman says...

In reply to this comment by cybrbeast:
Why did the technology die with him? Surely more could be built?

>> ^cybrbeast:
Why did the technology die with him? Surely more could be built?


One person with extraordinary vision, coupled with technological know-how, engineering brilliance and the ability to get his hands dirty and plain-and-simple build what he imagines is a rare thing.

In the case of the Britten bike, this is a partial list of what made his bike special:

1) Partial girder-link front suspension with adjustable anti-dive properties.
-fork-type suspensions compress under braking and extend during acceleration, changing the geometry and handling characteristics of the machine quite drastically during the different driving modes. Britten's suspension design allowed him to control pretty much all variables of suspension geometry under changing load, making the bike behave however the rider wished.
- The rear suspension, while perhaps not as revolutionary, was a beautiful piece. It was essentially a carbon-fibre banana swing-arm with a linkage to the adjustable shock/spring assembly. If you look at the bike you'll see that there's no spring/shock assembly near the rear suspension, rather note the spring/shock assembly directly behind the front wheel- this is for the rear suspension! The front shock assembly is hidden in the front suspension linkage and cowling.

2) The engine itself was a stressed-member.
-While certainly not unheard of, Britten took the concept to an extreme, essentially eliminating the frame from the motorcycle. The front and rear suspensions essentially bolted directly to the engine, thus saving many kilos over contemporary designs. Take a look at any current MotoGP or Superbike- most use the engine as a partial stressed-member, but they all have frame members linking the engine, steering heads and seat-assemblies. Britten really only had a vestigial sub-frame for the rider's seat.

3) Well-controlled aerodynamics and fully-ducted cooling system
-Britten paid close attention to airflow over, around and through his bike. Look how cleanly the rider's body tucks into the bodywork. He paid close attention to details, notice how clean the entire assembly is- no exposed wiring, nothing dangling into the airflow, that incredibly sleek rear swing-arm and rear tire hugger. This keeps the airflow smooth and un-disturbed. Motorcycles aren't terribly aerodynamic machines in the first place, but a wise man once said God is in the details.
-The engine itself is a water cooled design, but where's the radiator? It's in a fully-sealed duct directly beneath the rider's seat. High-pressure air is inlet from the front of the bike, through the radiator and is exhausted into the low pressure area beneath the rider and above/ahead of the rear wheel. Greater cooling equals higher power potential.

4) The motor
- 999cc 60 degree V-Twin, belt-driven DOHC design, twin injectors per cylinder, sophisticated electronic ignition, hand-made carbon fibre velocity stacks, wet sump. The motor was designed to breathe hard, pumping out torque and horsepower (166 hp @ 11800 rpm- not sure about the torque figures), and run cool and reliably under racing conditions. Nothing here that any other manufacturer couldn't have figured out on their own, but Britten had the insight and the will to make the best motor in the world at the time. The 60 degree configuration was, I assume chosen for packaging reasons. Normally this configuration would have bad primary balance characteristics, but Britten engineered his to such tight tolerances that the engine ran smoothly right up to redline (12500 rpm) without using a balance shaft.
I'll also point out here that Britten wasn't above using someone else's part if it was better than he could make himself- the gearbox was from a Suzuki superbike, and the cylinder liners and voltage regulator (both of which failed at the Daytona race in '92- the latter costing Britten the win) were from Ducati.

5) Carbon Fibre
- While Carbon Fibre had been around for 2 decades or so at this point, nobody had used it so extensively. Britten used the material for bodywork, wheels, engine parts, suspension girders and the rear swing-arm. There is still no other bike, not even the current Ducati Desmosedici MotoGP bike, that uses so much of this exotic material. The stuff then, as it is now, was hugely expensive and challenging to engineer for different applications. Britten made everything himself, in his garage, figuring it out as he went. This kept the total weight of the bike to a hugely impressive 138 kg.

Keep in mind that he did all of the above in 1991 and 1992, with the help of several neighbors and one part-time machinist, in his backyard shed! He made the bodywork by hand, using a wire frame and hot melt glue, crafting the wind-cheating shape and cooling ducting purely by eye. He cast the aluminum engine parts himself, heat-treating them in his wife's pottery kiln, and cooling the heat-treated parts with water from his swimming pool!

Ducati, Honda, Kawasaki, Suzuki... any one of these manufactures could today reproduce and expand on what Britten accomplished almost single-handedly. None of them will- there's too much at stake for them. It's far safer to stick with the tried-and-true, making small evolutionary changes over the years. A true visionary achiever (to coin a term) like Britten comes along only every once in a great while.

I suppose that this is what was really lost when John Britten died... vision, engineering acuity, hands-on knowledge, and pure will. Touched with a little craziness.

peggedbea (Member Profile)

Hey VS Art Hooligans... (Blog Entry by Lann)

peggedbea says...

i make quirky things with fabric when i have time. ive also been on a clay experiment lately. but i lost access to the kiln and im not paying shipping on clay. iv is a photographer. oh and i bake things. i want to mail you all bread and tamales.

Shooting clay pigeons... with a BOW. Awesome!

jwray (Member Profile)

qruel says...

your statement is true....one needs to take into account the actual levels of mercury.

from the abstract: The samples were found to contain levels of mercury ranging from below a detection limit of 0.005 to 0.570 micrograms mercury per gram of high fructose corn syrup. Average daily consumption of high fructose corn syrup is about 50 grams per person in the United States. With respect to total mercury exposure, it may be necessary to account for this source of mercury in the diet of children and sensitive populations.

this was one of two studies done on the subject. While I know the 2nd study found mercury in more products that contain HFCS, I'm not sure at what levels.

Q

In reply to this comment by jwray:
>> ^qruel:
Since we are talking about Mercury... here's some interesting facts...
Gold mines are the nation's largest source of mercury pollution. Like all mining, separating and processing the gold creates tons of toxic metals, like lead and mercury. Nevada is home to eight of the nation's top 10 mercury polluters. Here is a list of the top 100 Some other sources: Coal Fired Power Plants, Cement Kilns, Incinerators, Chlor-alkali Production, Chemical Plants.

In 2005 the FDA did a study that showed mercury in many food products that contained High Fructose Corn Syrup (due to mercury in the caustic soda and hydrochloric acid used in the manufacture of HFCS), and the FDA did absolutely nothing about it
.


Presence of "detectable" levels is meaningless unless you name a specific concentration. Nearly everything will randomly contain at least 1 part in 10^20 of whichever stable element you want, which could be measured with a sufficiently accurate mass spectrometer.

Will a cannonball float in mercury?

jwray says...

>> ^qruel:
Since we are talking about Mercury... here's some interesting facts...
Gold mines are the nation's largest source of mercury pollution. Like all mining, separating and processing the gold creates tons of toxic metals, like lead and mercury. Nevada is home to eight of the nation's top 10 mercury polluters. Here is a list of the top 100 Some other sources: Coal Fired Power Plants, Cement Kilns, Incinerators, Chlor-alkali Production, Chemical Plants.

In 2005 the FDA did a study that showed mercury in many food products that contained High Fructose Corn Syrup (due to mercury in the caustic soda and hydrochloric acid used in the manufacture of HFCS), and the FDA did absolutely nothing about it
.


Presence of "detectable" levels is meaningless unless you name a specific concentration. Nearly everything will randomly contain at least 1 part in 10^20 of whichever stable element you want, which could be measured with a sufficiently accurate mass spectrometer.

Will a cannonball float in mercury?

qruel says...

Since we are talking about Mercury... here's some interesting facts...

Gold mines are the nation's largest source of mercury pollution. Like all mining, separating and processing the gold creates tons of toxic metals, like lead and mercury. Nevada is home to eight of the nation's top 10 mercury polluters. Here is a list of the top 100 Some other sources: Coal Fired Power Plants, Cement Kilns, Incinerators, Chlor-alkali Production, Chemical Plants.

In 2005 the FDA did a study that showed mercury in many food products that contained High Fructose Corn Syrup (due to mercury in the caustic soda and hydrochloric acid used in the manufacture of HFCS), and the FDA did absolutely nothing about it
.

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