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Bali’s 'magic' bamboo homes [video]

bbc.com

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Re: Bali’s 'magic' bamboo homes [video]

#51

Post by mitchty »

SlowRobotAhead wrote: post #40
jws wrote: post #25

Earlier quoted context omitted.

There is a company working on it… https://en.m.wikipedia.org/wiki/Mosquito_laser The current plan is a ‘fence’ which will detect, identify, and kill 50 mosquitos per second. It can be tuned to only kill female mosquitos of the malaria carrying species measuring reflectivity and wing beat frequency. They speculate it could cost $50 for a 30 meter fence. Looks like the company is targeting citrus pests in order to get…

Why on earth would you target only female mosquitos!? The males are rare and required to make more females. Seems like you would want to blast away with indifference. Yes, I am aware the females bite. Males are much more rare, is the goal individual death or is it population control?

Because females are the ones that bite and transmit malaria.

https://www.cdc.gov/malaria/about/biology/mosquitoes/index.h...

Killing the males is pointless if your goal is preventing disease.

Re: Bali’s 'magic' bamboo homes [video]

#52

Post by ajuc »

choot wrote: post #19

Density of Carbon Fiber is 1743kg/m^3 and that of Bamboo is 1160 kg/m^3. Acrlyic, Nylon, Polycarbonate have similar density as Bamboo. Bamboo's strength falls somewhere between fiberglass and carbon fiber Some things to think about include ecological factors (bamboo is renewable), environmental factors (bamboo is flammable), loading factors (steel can be made ductile and its high properties are isotropic), and weight…

Is this density including the void inside, or just for the non-hollow parts?

Re: Bali’s 'magic' bamboo homes [video]

#53

Post by fermienrico »

I am more interested in the engineering aspects of Bamboo than just the aesthetics. The entire video is about how unique it is, and how beautiful it looks. None of that matters if the whole house of cards falls over. There was an interesting brief comment about treatment to protect the Bamboo from rotting away but very little information was conveyed in the presentation. I wish they'd show the technical fundamentals of why Bamboo is unique.

Re: Bali’s 'magic' bamboo homes [video]

#55

Post by fermienrico »

jibolso wrote: post #9

This is good design thinking and implementation. My only question would be the susceptibility to fire, any thoughts on this?

Design thinking is one of the worst things that came out of IBM. It is an appalling jargon of shaky abstract ideas that, when the time comes to implement, fall apart and at that point you're just doing what any intelligent person would do - use logical reasoning, observation and rational decision making that would occur anyways without this Design Thinking bullshit. This stuff [1] bothers me to no end - Can someone tell me what the hell is this [1] guy talking about!?

[1] https://www.youtube.com/watch?v=psLjEBUOnVs

Re: Bali’s 'magic' bamboo homes [video]

#56

Post by fermienrico »

crishoj wrote: post #49
sethammons wrote: post #10

Wow, those are beautiful. Very organic feeling. I wonder how much those structures cost...

500k USD for that magnificent 6-storey building, according to this video: https://youtu.be/tPJbtMuZvbU?t=196

I'd need to see an independent assessment of the structural integrity of this type of ideas, especially if it was designed and built in Indonesia.

Even if it was assessed independently, I still would not feel safe because the engineering scrutiny and structural discipline was perhaps not an integral part of the development process. I just have a hard time trusting novel civil engineering projects without insane amounts of engineering data.

Re: Bali’s 'magic' bamboo homes [video]

#57

Post by proee »

One problem with bamboo is that it easily grows mold. So even if you treat the outside it's entirely possible mold is growing on the inside. I'm sure there are some good ways to "dip" bamboo and coat it in something to prevent mold growth. I live in Hawaii and I won't use anything with bamboo because it always seems to eventually mold.

Re: Bali’s 'magic' bamboo homes [video]

#58

Post by mrnobody_67 »

crishoj wrote: post #49
sethammons wrote: post #10

Wow, those are beautiful. Very organic feeling. I wonder how much those structures cost...

500k USD for that magnificent 6-storey building, according to this video: https://youtu.be/tPJbtMuZvbU?t=196

Cant even get a crack shack in SF for that.

Re: Bali’s 'magic' bamboo homes [video]

#59

Post by Retric »

fermienrico wrote: post #53

I am more interested in the engineering aspects of Bamboo than just the aesthetics. The entire video is about how unique it is, and how beautiful it looks. None of that matters if the whole house of cards falls over. There was an interesting brief comment about treatment to protect the Bamboo from rotting away but very little information was conveyed in the presentation. I wish they'd show the technical fundamentals…

Bamboo has a very good strength to weight ratio allowing you to build very tall structures. The real issue is it degrades faster than wood.

Re: Bali’s 'magic' bamboo homes [video]

#60

Post by RugnirViking »

everyone wrote: post #23

Every bamboo pole is different.. For this reason bamboo could never fit into modern engineering practices. Engineers use things like I-beams because, (in theory) each one is the same and they have been tested (probably millions of times) Their structural characteristics are known. So an engineer can sign off on a building and the team can get architectural indemnity insurance. Bamboo, and also things like using the e…

Wooden planks actually do regularly come with knots and large differences in strength due to the grain - we are able to work around this due to familliarity with them at all parts of the supply chain.

As for why we use planks and not logs? They're all the same size - A lot easier to transport and use.

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