search results matching tag: pottery

» channel: learn

go advanced with your query
Search took 0.000 seconds

    Videos (24)     Sift Talk (1)     Blogs (2)     Comments (35)   

Restaurant brawl in Manhatten

Lann (Member Profile)

Sony PlayStation Move - Tech Demo

siftbot says...

Tags for this video have been changed from 'TIME, pottery, painting, mindblowing, Sony, 3D, perspective, graphical manipluation' to 'TIME, pottery, painting, mindblowing, Sony, 3D, perspective, graphical manipulation' - edited by berticus

Making a Ceramic Mug

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.

Refrigeration Without Electricity

Payback says...

>> ^Pprt:
Are we supposed to be impressed that Africans discovered insulation and clay pottery? This is 2009.


At the level of schooling most Africans are kept at by their own people as much as the industrialized world, anything even remotely clever is notable. If this person never learned about the "ancient technology" and came up with it himself, he's a quantum leap over your Google and Wikipedia "skills".

Refrigeration Without Electricity

laura says...

Here's what I said to Pprt:

dude, farmers' crops were going bad before they could sell it all. People were getting sick from food-borne illness.
Yes, in 2009.
They don't have electricity in most of the places where this is needed. Whether it is old technology or not, don't you think it's a good thing that they are making use of it now?
It's a happy thing, not a "hey check how impressive this 'discovery' is" thing.

>> ^Pprt:
Are we supposed to be impressed that Africans discovered insulation and clay pottery? This is 2009.

laura (Member Profile)

Pprt says...

Verily, good for them.

It's just surreal that Northeners are impressed by this neolithic technology.

In reply to this comment by laura:
dude, farmers' crops were going bad before they could sell it all. People were getting sick from food-borne illness.
Yes, in 2009.
They don't have electricity in most of the places where this is needed. Whether it is old technology or not, don't you think it's a good thing that they are making use of it now?
It's a happy thing, not a "hey check how impressive this 'discovery' is" thing.

In reply to this comment by Pprt:
Are we supposed to be impressed that Africans discovered insulation and clay pottery? This is 2009.

Pprt (Member Profile)

laura says...

dude, farmers' crops were going bad before they could sell it all. People were getting sick from food-borne illness.
Yes, in 2009.
They don't have electricity in most of the places where this is needed. Whether it is old technology or not, don't you think it's a good thing that they are making use of it now?
It's a happy thing, not a "hey check how impressive this 'discovery' is" thing.

In reply to this comment by Pprt:
Are we supposed to be impressed that Africans discovered insulation and clay pottery? This is 2009.

Refrigeration Without Electricity

Post Yer Desktop (Blog Entry by EndAll)

Auto-Tune the News 3 (Feat.. Ron Paul)

calvados says...

Lyrics:

EH: I think this is an ignoramus statement
Umm, I was even a person who thought
You know what, power to Joe the Plumber at that point
SG: Before he went around laying his pipe all over town
EH: Well, Joe the Plumber is not invited
Anywhere around me
EG: Does baby need a tissue?
Thinking about the time the plumber kissed you
Before you caught him creeping with the shitzu
RM: As republicans, the party does seem to be in chaos
RP: They need to change their attitude, attitude
Their attitude, attitude
MG: Ay, tells us what your homeys can do
To make a change
RP: You know, they talk about personal freedoms
They have to believe in it, you know
MG/RM: We know!
RP: To believe in it, you know
MG/RM: We know!
RP: To believe in it, you know
MG/RM: We know, we know, we know you just got to believe
RP: To believe in it, you know
MG/RM: We know!
RP: To believe in it, you know
MG/RM: We know!
RP: To belieeeeeeeeeve! Lieeeeeeeeeeeeeeeve!
MG: You saying Republicans on crack
Are you cozy with the Democrats?
RP: I just don't think that either party
Right now offers a whole lot
MG: You'll see some real change
From the 3rd party at my house
Poppin champagne, bacardi; gettin crunked out
Triple rhymin with Joe Biden
While we Imbibin Hennessy
Come on over--drinks on me, homey
HK: We'll be friends with you
AZ: And bff with you
Main Damies with you
HK: And colleagues with you
AZ: I'll be in your crew
HK: I'll be in yours, too
AZ: Jumpin rope with you
HK: Playin Donkey Kong with you
AZ: Hatchin plans with you
HK/AZ: invade Tajikistan with you
HC: We do not believe either Afghanistan or Pakistan
Can achieve lasting progress
Without the full participation of all of your citizens
Including women and girls
AZ: Having a barbecue
HK: Grilling a goat with you
AZ: Grilling terrorists, too
HK: Getting matching tattoos
HC: The rights of women must be respected and protect--
AZ: --Picking flowers with you
HK: Hot showers with you
AZ: Falling in love with you
HK: Nude at the zoo
AZ/HK: Making memories at the pottery wheel, rubbing clay on you all afternoon
KC: It would be one of the most dramatic
Foreign policy about faces ever
AG: To what do you refer, shawtayee?
KC: A bipartisan bill in Congress would end
The 47-year-old trade freeze with Cuba
AG: Ojalá congreso le gusta esta
KC: It has only spotty support so far
But President Obama's already taken some baby steps
Letting Cuban Americans visit family members
And send them money
But for most of us it's still a place that is
Strictly off limits
AG: Not for this G
I just went there illegally
Speaking of which, will you buy drugs from me
On national TV?
Don't fret--the people think I'm joking
But guess what (what?)?
I've never joked in my life; ooh-wee, shawtayee
KC: The trade embargo made sense a half century ago
AG: That's 50 years
KC: During the Cold War
Fidel Castro took sides with the enemy
But the Soviet Union is long gone
AG: Disbanded:
KC/AG: Long gooooone!
SG: Dick Cheney. Rush Limbaugh or Colin Powell. Who's your damie?
DC: Well, if I had to choose, uh
In terms of being a Republican I'd go with Rush Limbaugh
My take on it was Colin had already left the party
SG: I don't think that actually happened
[awkward silence]
This is an awkward silence;
I guess I'll fill it with ad libs
Oh! Shawty! Yeah
EG: Whoo! Aaaah
KC: Now it's up to Fidel and Raúl Castro
AG: Esos Castros locos. Cuidado
KC: President Obama says he wants to see Democratic reforms
Particularly on human rights and free speech
So congress will be looking for signs of change
After almost 50 years
AG: Ay, that's half a century
KC: U.S. policy will not reverse overnight
Relations remain chilly
But for the 1st time in generations
A thaw is possible
AG: A thaw, but what sort of thaw?
What exactly is thawing?
KC: Very, very, very, very
Very thin ice
AG/KC: Very thin ice, very thin ice, very thin ice

How to Kill your Grandmother with a Basketball (30 sec)

House of 8,800 Teddy Bears (Blog Entry by dotdude)

dotdude says...

He promises that he will stop when the bear count reaches 10,000. This morning he told me a little girl on a Sunday tour said she wanted to have collection just like him. He said to her “No you don’t; it’s exhausting.”


My uncle (no deceased) blew smoke rings for a photo. He became Captain Puff. His speedboat became “Puff.” Then he and his family bought ceramic dragons at a pottery place in North Carolina. Their den is now covered with dragon objects all because of a family joke.



Send this Article to a Friend



Separate multiple emails with a comma (,); limit 5 recipients






Your email has been sent successfully!

Manage this Video in Your Playlists

Beggar's Canyon