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neb

neb
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  #3058535 3-Apr-2023 16:41
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Rikkitic:

I am in no way an engineer but I was thinking of an underwater tunnel anchored at a suitable depth to the sea bed (so as not to obstruct shipping). Could be constructed on the ground with segments towed into place and sunk to desired depth, then connected up and water pumped out. A lot like a space station. Many billions but many billions less than drilling a tunnel.

 

 

That's how they're doing the Fehmarn Belt link, across the shallow, flat, geologically stable Baltic. Should take around ten years to build, projected cost around EUR $10 billion, but of course it'll cost much more by the time it's done.

neb

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  #3058538 3-Apr-2023 16:44
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This small thing has been annoying me ever since its pre-DST scheduled feeding time:

 

 


richms
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  #3058546 3-Apr-2023 17:12
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Mine 2 new ones had to get no food overnight so they would come in and see me in the morning so I could trap them, cage them and take the to the vet for stitches out after being fixed. They were super noisy at 4 am, and 5 am, and all the way thru because of the empty food bowls. My others that are allowed outside seem to just go eat from the neighbours when there is no food inside.





Richard rich.ms

Handle9
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  #3058566 3-Apr-2023 18:17
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neb:
Rikkitic:

I am in no way an engineer but I was thinking of an underwater tunnel anchored at a suitable depth to the sea bed (so as not to obstruct shipping). Could be constructed on the ground with segments towed into place and sunk to desired depth, then connected up and water pumped out. A lot like a space station. Many billions but many billions less than drilling a tunnel.



That's how they're doing the Fehmarn Belt link, across the shallow, flat, geologically stable Baltic. Should take around ten years to build, projected cost around EUR $10 billion, but of course it'll cost much more by the time it's done.


Which will be the longest immersed tunnel in the world and 4km shorter than Cook Strait at its narrowest point.

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  #3058568 3-Apr-2023 18:19
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Rikkitic:

MikeB4:


The Hukurangi Trench runs adjacent to the Eastern side of the Strait. it is part of the Hikurangi Subduction zone and is capable of generating powerful earthquakes e.g 1885 8.2 magnitude that resulted in massive land movement onshore and offshore. Build a tunnel under the strait would be insanity.



Is a floating tunnel a theoretical possibility? 


 



If you could maintain a constant depth, which would be incredibly difficult with different loads throughout the tunnel, you’d still have the tidal problem.

Cook strait is extremely tidal and keeping a floating tunnel in place without fracturing would likely be impossible as the tides ebbed and flowed.

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  #3058571 3-Apr-2023 18:20
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geoffwnz:

 

Short of heavy borrowing, where would the funds come from?

 

 

User Pays, which would be horrendous.

 

Cheaper flights, hovercraft? Maybe just cheaper flights!


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  #3058573 3-Apr-2023 18:23
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MikeB4:

 

 

 

The Hukurangi Trench runs adjacent to the Eastern side of the Strait. it is part of the Hikurangi Subduction zone and is capable of generating powerful earthquakes e.g 1885 8.2 magnitude that resulted in massive land movement onshore and offshore. Build a tunnel under the strait would be insanity.

 

 

EQ yes but its a major tsunami risk. Alpine Fault is overdue, doest mean that every mile from Fiordland to Hikurangi gets hit, but it WILL happen.


tdgeek
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  #3058575 3-Apr-2023 18:26
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Rikkitic:

 

Is a floating tunnel a theoretical possibility? 

 

 

 

 

No. many ideas can work, but in all seriousness, a light aircraft departing very regularly is cheap. Cars? A ferry, when conditions are suitable which is most of the time. No idea of the numbers, but Id guess that the non ferry days are miniscule compared to the ferry sail days. The latter doesnt make the clickba.. I mean the news...


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  #3058576 3-Apr-2023 18:28
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Rikkitic:

 

I am in no way an engineer but I was thinking of an underwater tunnel anchored at a suitable depth to the sea bed (so as not to obstruct shipping). Could be constructed on the ground with segments towed into place and sunk to desired depth, then connected up and water pumped out. A lot like a space station. Many billions but many billions less than drilling a tunnel.

 

 

 

 

 

 

Id suggest running a boring ferry


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  #3058577 3-Apr-2023 18:29
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neb:
Rikkitic:

 

I am in no way an engineer but I was thinking of an underwater tunnel anchored at a suitable depth to the sea bed (so as not to obstruct shipping). Could be constructed on the ground with segments towed into place and sunk to desired depth, then connected up and water pumped out. A lot like a space station. Many billions but many billions less than drilling a tunnel.

 

That's how they're doing the Fehmarn Belt link, across the shallow, flat, geologically stable Baltic. Should take around ten years to build, projected cost around EUR $10 billion, but of course it'll cost much more by the time it's done.

 

Not quite Cook. Its a solution looking for a problem


Jase2985
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  #3058738 3-Apr-2023 21:03
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people who cant put more than one quote into a post. yes im looking at you tdgeek and others.

 

you could have made 3 posts instead of 5, based off the forums 2 nested quotes per post limit.


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  #3058740 3-Apr-2023 21:13
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Technofreak:

 

Geektastic:

 

(quote level snipped)

Don’t they have a system to prevent oncoming drivers being dazzled?

My Mercedes has lights made of many many LEDs in an array and the system literally shuts off individual ones to create a dynamic dark hole that the oncoming traffic is in whilst retaining full illumination on much of the rest.

It’s great to drive with, I have to say. You just leave it on auto.

 

Yup, the model up from mine has those. One owner I know of says they are so unbelievably good they're like witchcraft. I wish they were able to be retro fitted. They're are also eye wateringly expensive to replace.

 

Some of the projection style headlamps on utes and SUV are a menace. Even on low beam they produce a beam that is a real problem for driver in a sedan especially when they are following behind.

 

 

 

Yeah I'm in a sedan.  My last two cars, both Diamante's, copped it bad from other vehicles.  I've pulled over to let a tailgating SUV pass because of it in the past. My current car which is a 380 has a larger and higher spoiler that cuts out headlights of cars that get close than the required two second distance behind me.

 

I'd love to know what it looks like from the driver's perspective - if they can see what must be a highly focused beam flickering across vehicles they're following, often to the point of lighting up the entire cabin.





You're not on Atlantis anymore, Duncan Idaho.

floydbloke
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  #3058773 4-Apr-2023 09:31
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Rikkitic:

 

...

 

Edit: As an aside, I disagree with the sentiment expressed in your signature. The bee's bum is an aggressive object, used for insult and excretion, housing a weapon meant to injure and even kill. The knees are innocuous and non-threatening, something no-one needs to fear. Bee's knees are always welcome at a picnic. 

 

 

That's OK, I'm choosing not to be offended by your disagreement in this instance.😜





Sometimes I use big words I don't always fully understand in an effort to make myself sound more photosynthesis.


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  #3058791 4-Apr-2023 10:42
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MadEngineer:

 

Yeah I'm in a sedan.  My last two cars, both Diamante's, copped it bad from other vehicles.  I've pulled over to let a tailgating SUV pass because of it in the past. My current car which is a 380 has a larger and higher spoiler that cuts out headlights of cars that get close than the required two second distance behind me.

 

I'd love to know what it looks like from the driver's perspective - if they can see what must be a highly focused beam flickering across vehicles they're following, often to the point of lighting up the entire cabin.

 

 

Being the driver of a blindingly bright-headlighted SUV, I can confirm that when following anyone at night, I am acutely aware of how bright and annoying my lights must be. 
I can see everything lit up in the cabin of a car I am following and it's especially bad on 50 or 30 kmh roads as the following distance is shorter. 

I see people flick their rearview mirrors to dip very often. 
There's little to nothing I can do about this. 





Handsome Dan Has Spoken.
Handsome Dan needs to stop adding three dots to every sentence...

 

Handsome Dan does not currently have a side hustle as the mascot for Yale 

 

 

 

*Gladly accepting donations...


Rikkitic
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  #3058802 4-Apr-2023 11:28
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Handsomedan:

 

Being the driver of a blindingly bright-headlighted SUV, I can confirm that when following anyone at night, I am acutely aware of how bright and annoying my lights must be. 
I can see everything lit up in the cabin of a car I am following and it's especially bad on 50 or 30 kmh roads as the following distance is shorter. 

I see people flick their rearview mirrors to dip very often. 
There's little to nothing I can do about this. 

 

 

I have a friend who imports American cars. To get them VINed here, he has to change the headlights so they don't point into the oncoming lane. Surely there is some kind of regulation in this safety-obsessed country to govern modern too bright lights?

 

 





Plesse igmore amd axxept applogies in adbance fir anu typos

 


 


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