Wow...thats pretty thin. ..crazy where technology is getting usOriginally Posted by Grumpy Wolverine
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Wow...thats pretty thin. ..crazy where technology is getting us
The first principle is that you must not fool yourself and you are the easiest person to fool.
- Richard Feynman
I don't think the gizmo will help much
I've ridden my motorcycle in slightly below zero temps with a heated vest and while the vest felt hot the limbs and head felt frozen.
It's an eerie feeling.
That sounds like something the marketing company for this product came up with and told you...it is wishful thinking at best and pure BS at worst.
These units have been tried before. I would rather depend on warm clothing than a battery pack for warmth. Much more reliable.
A proper fitting kevlar vest keeps the core warm too and extremities still get cold. I do not agree with this statement.
A hot water tank's water is warmest where it is heated-in the tank, not in the outstretched pipes.
I love the guys disagreeing with Grumpys statement. Though what he is saying is pure 100% biology. The body ceases circulation to the extremities to maintain core temperature. It's why you get cold at the extremities before the core. When the core has excess heat it circulates it farther out.
Wearing this is not a replacement for a good jacket. It's a supplement that adds additional heat. It ADDS additional heat.
Like common... Gimme a break... Who argues against adding a heater???
And plates actually pull heat from your body whoever said they helped... They act like a heat sink. This is specifically addressed when you get training in thier use. It's why you add a heater....
The problem with Socialism is.... you can vote yourself into it. But you have to shoot yourself out of it.
#WEXIT. Because it’s 2022.
Armor acts like a heat sink? LOL.
You clearly have not worn armor in all seasons for any extended period of time.
As someone who has frozen their ass off while dressed in our issued winter kit I could for sure see the benefit of it.
Only concern would be the effect that the heater could have on the ballistic qualities of the vest. Such as will a bullet striking the vest and heater cause the vest to not work the way it was intended?
Regulating core tempature is so useful just as it was explained to Grumpy by the rep.
Last edited by KRASHED; 04-01-2016 at 06:29 AM.
Plates. Not Kevlar. if you have a ton of other kit on, like a regular vest under it there is no contact with skin you won't even notice. But any solid mass against your skin will suck heat. The best, most extreme example would be to let's say try sitting bare arsed on a steel plate in the cold. Heat gets sucked out pretty quick.
The problem with Socialism is.... you can vote yourself into it. But you have to shoot yourself out of it.
#WEXIT. Because it’s 2022.
Well since you asked
Part of what you and grumpy says is true. When we get cold the body reduces the circulation to our extremities in an attempt to maintain core temperature but this change in circulation is done at the local level of the tissue, not at the core. This makes sense from a survival standpoint because if the pump (heart) or electrical control centre (brain) freezes then there is death. What the body doesn't do, as you and Gumpy's statement proclaims, is push that core heat back out into the extremities when they are cold and here is why:
Our extremities get cold out in the field for a number of reasons - they are more exposed and less protected than our core generally speaking. The arteries in the extremities react to this heat loss by constricting which reduces blood flow to them - this makes our extremities even colder but protects the body by keeping the majority of blood flow limited to the core. So heating the core does nothing to open up the blood vessels in the extremities (unless you wrap your arms around your core/heated vest of course).
I'm not arguing against adding a heater. Grumpy asked for feedback and I'm providing some. Our core will get rid of excess heat by sweating, not by distributing it to cold extremities as was suggested. That is my point and if I was a guy like Grumpy, I would want to know that maybe what I was told by the inventor or marketer of this product isn't the whole truth.
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