Skiing vs cycling

[ufkacbln]

I've actually CONVENIENTLY forgotten why you are so keen on citing a thudguard..can you recap on this one...short version please

FTFY

Short version..... simples.



You post something like:

So going by this if believed to be 100% true, isn't a fractured skull something worth mitigating against as well as a brain injury in the first instance ?

I point out that this applies equally to the Thudguard and you then spend pages avoiding any answer to the point raised because it has irretrievably undermined your statement, and actually answering would recognise that

 

[Linford]

Still a valve

A valve can be a simple flap designed to stop a back flow of pressure. It doesn't have to be an obstruction in the same way which a piston in a damper unit works.

 

[Linford]

[QUOTE 2853890, member: 45"]And that's similar to a crumple zone forhowwhy?....[/quote]

They both turn kinetic energy into heat

 

[Linford]

FTFY

Short version..... simples.



You post something like:



I point out that this applies equally to the Thudguard and you then spend pages avoiding any answer to the point raised because it has irretrievably undermined your statement, and actually answering would recognise that

No,no, I mean why is the thudguard so effective that you try and flog its virtues at every opportunity ?

 

[ufkacbln]

[

No,no, I mean why is the thudguard so effective that you try and flog its virtues at every opportunity ?

Thank you for illustrating the point about not answering the question and using an avoiding tactic

Lets try again, And see how you avoid answering this time.

So going by this if believed to be 100% true, isn't a fractured skull something worth mitigating against as well as a brain injury in the first instance ?

Thudguard does this exactly - or are children's head injuries not worth mitigating, and we should accept them?

It is as simple as this...you either see
A) value in using head protection in an impact to mitigate to a degree
B) No value in head protection and there is no mitigating value in any form of head protection in any instance

What is it to be for you ?

What is it to be for you?......The Thudguard fulfills this requirement.... as you state - very simple, do you state unequivocally that it is not worthwhile mitigating these injries?

and little comfort could be drawn from the numbers published if your nearest and dearest are among them.

...and again the emotive BS that you have chosen applies to Thudguards as well. Once again is there greater comfort to be drawn when the injury is to a child?

The Thudguard continues to serve its purpose in showing hypocrisy in this debate. It mirrors the cycle helmet argument exactly and tyour failure to actually answer the points and continuously avoid only proves this point

 

[Linford]

[QUOTE 2854002, member: 45"]This is what you posted. You're wrong, and you clearly don't know what you're talking about. A crumple zone is a lot different to a hydraulic damper.[/quote]

The heat created through the resistance of the oil through the piston hole(s) as the damper runs through its stroke (viscous drag) gets dissipated in both the damper units mass and the oil inside it through the process of conduction.

The heat created by deformation of the crumple zone mostly gets absorbed into the components which make it (yet again by conduction). Once the crumple zone has fully crushed, the remaining kinetic energy caries through the rest of the structure of the vehicle deforming that as it goes(and creating more heat...through conduction). Perhaps either @McWobble or @mcshroom can correct this post if wrong ?

 

[Fab Foodie]

Dears, I'm about to enter the magical world of the pantomime at the Oxford Playhouse. I'll leave you lot to continue your own .....
At least the nonsense I'll see will be imaginary .
Have a nice evening.

 

[Linford]

Does Widow Twanky have a crumple zone and a helmet..... we need to know!!!!

If he/she does, let's hope they work...unlike that lid you put on every time you get on your bike

 

[Fab Foodie]

I don't know which is worse.

Oh yes you do .....

 

[Fab Foodie]

Finally! Your learning!

Oh no he's not .....

 

[Linford]

[QUOTE 2854052, member: 45"]"Not a lot different" you said.[/quote]

The process paths differ(because they are different devices obviously) but the outcome is the same...kinetic energy gets converted to heat (energy) when the component gets in the way of it.
the side effect of this is that the components state changes in the process (crumple zones crush, dampers travel through their stroke)

 

[Linford]

[QUOTE 2854132, member: 45"]No. You said that crumple zones work by deforming materials. A damper compressing is not deforming.

You're digging holes in several directions now, and none of them have much to do with your head-spinning ideas on risk. You say that because big, tough-shelled motorbicling hats reduce risk, you'll wear a small, light, brittle, easily-penetrated cycling hat when partaking in an activity which has a low risk comparable with walking.

Now, if you're really bothered about risk then as you're in the highest risk group for motorbicling (middle-aged rural biker) you really ought to turn your attention to the beans you claim to give it when you're out in your big growly motorbike.[/quote]

I can flex the carbon fibre shell of my lid with my thumb. If it didn't flex it would crack. The clever bit is contained inside it

 

[Linford]

[QUOTE 2854278, member: 45"]The clever bit who gives it beans on a 170mph bike while banging on about how important a bit of polystyrene is when cycling.[/quote]

I was referring to the expanded polystyrene inner shell. What did you say a few days ago about getting personal ?
Returning to the action of a damper, can you enlighten as to what is the action of it is when compressing ?

 

[Fab Foodie]

It's only January, but I'm prepared to put money on this being the dullest thread of 2014. ....

 

[subaqua]

It's only January, but I'm prepared to put money on this being the dullest thread of 2014. ....

Following on from the panto theme , can you put it behind you.