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#1
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Wear a helmet, you know it makes sense
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#2
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Wear a helmet, you know it makes sense
On Saturday, February 23, 2019 at 12:49:54 AM UTC, MrCheerful wrote:
https://www.theargus.co.uk/news/1745...afety-warning/ What evidence do you have to show a cycle helmet would have made any difference? Research shows cycle helmets can only absorb 70 joules before failing and it takes around 1000 joules to crack a human skull. |
#3
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Wear a helmet, you know it makes sense
On Saturday, February 23, 2019 at 7:27:15 PM UTC, Simon Jester wrote:
Research shows cycle helmets can only absorb 70 joules before failing and it takes around 1000 joules to crack a human skull. It makes more sense to use a driving helmet. See: https://pbs.twimg.com/media/D0HUslgWkAErLyJ.jpg |
#4
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Wear a helmet, you know it makes sense
On 23/02/2019 19:27, Simon Jester wrote:
On Saturday, February 23, 2019 at 12:49:54 AM UTC, MrCheerful wrote: https://www.theargus.co.uk/news/1745...afety-warning/ What evidence do you have to show a cycle helmet would have made any difference? Research shows cycle helmets can only absorb 70 joules before failing and it takes around 1000 joules to crack a human skull. How many joules does it take to cause a catastrophic bleed on the brain, though? I'm not sure what you mean by 'before failing'? Does that mean the helmet cannot absorb more than 70 joules altogether? Or it cracks but still absorbs some of the impact? And clearly helmets vary. |
#5
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Wear a helmet, you know it makes sense
On 24/02/2019 11:55, GB wrote:
On 23/02/2019 19:27, Simon Jester wrote: On Saturday, February 23, 2019 at 12:49:54 AM UTC, MrCheerful wrote: https://www.theargus.co.uk/news/1745...afety-warning/ What evidence do you have to show a cycle helmet would have made any difference? Research shows cycle helmets can only absorb 70 joules before failing and it takes around 1000 joules to crack a human skull. They sound like very focussed Joules - bullet perhaps? ;-) How many joules does it take to cause a catastrophic bleed on the brain, though? I'm not sure what you mean by 'before failing'? Does that mean the helmet cannot absorb more than 70 joules altogether? Or it cracks but still absorbs some of the impact? Depends on the incident and circumstances, of course. And clearly helmets vary. Indeed - and I at least find it difficult to tell what's what (I use an Aldi own brand). I gather this is a good guide: https://www.smf.org/home Common sense tells me that a cycle helmet can help in certain circumstances - and it's worth wearing one on that basis. -- Cheers, Rob |
#6
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Wear a helmet, you know it makes sense
On Sunday, February 24, 2019 at 12:59:30 PM UTC, RJH wrote:
On 24/02/2019 11:55, GB wrote: On 23/02/2019 19:27, Simon Jester wrote: On Saturday, February 23, 2019 at 12:49:54 AM UTC, MrCheerful wrote: https://www.theargus.co.uk/news/1745...afety-warning/ What evidence do you have to show a cycle helmet would have made any difference? Research shows cycle helmets can only absorb 70 joules before failing and it takes around 1000 joules to crack a human skull. They sound like very focussed Joules - bullet perhaps? ;-) How many joules does it take to cause a catastrophic bleed on the brain, though? I'm not sure what you mean by 'before failing'? Does that mean the helmet cannot absorb more than 70 joules altogether? Or it cracks but still absorbs some of the impact? Depends on the incident and circumstances, of course. And clearly helmets vary. Indeed - and I at least find it difficult to tell what's what (I use an Aldi own brand). I gather this is a good guide: https://www.smf.org/home Common sense tells me that a cycle helmet can help in certain circumstances - and it's worth wearing one on that basis. I assume you always wear a helmet, not just when cycling. |
#7
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Wear a helmet, you know it makes sense
On Sunday, February 24, 2019 at 2:44:27 PM UTC, Simon Jester wrote:
Common sense tells me that a cycle helmet can help in certain circumstances - and it's worth wearing one on that basis. I assume you always wear a helmet, not just when cycling. That is why they have killed several children in playgrounds. https://www.cyclehelmets.org/1227.html |
#8
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Wear a helmet, you know it makes sense
On Sunday, February 24, 2019 at 12:59:30 PM UTC, RJH wrote:
On 24/02/2019 11:55, GB wrote: On 23/02/2019 19:27, Simon Jester wrote: On Saturday, February 23, 2019 at 12:49:54 AM UTC, MrCheerful wrote: https://www.theargus.co.uk/news/1745...afety-warning/ What evidence do you have to show a cycle helmet would have made any difference? Research shows cycle helmets can only absorb 70 joules before failing and it takes around 1000 joules to crack a human skull. They sound like very focussed Joules - bullet perhaps? ;-) Bullet energy is usually specified in Foot-Pounds or Newton-Metres. A typical 9mm pistol round has a muzzle energy of 500 joules. |
#9
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Wear a helmet, you know it makes sense
On Sunday, February 24, 2019 at 5:31:45 PM UTC, Paul Cummins wrote:
But what helmet to buy? That would depend on what you expect the hemet to do. By all means cycle in a full face motorcycle helmet if you wish. It will protect your head but will be uncomfortable. You might want to do some research on helmets and how they impair cognitive function. |
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