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#11
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Technology advances, to where exactly?
On Saturday, September 30, 2017 at 8:00:47 PM UTC-7, Jeff Liebermann wrote:
On Sun, 01 Oct 2017 06:54:28 +0700, John B. wrote: What I had envisioned was a sort of air bag type of protection with an inflatable suit triggered by some sort of shock sensor. The resulting inflated "armor" would look something like the "the Michelin Man" You're a bit late to the party with that idea: https://www.sheldonbrown.com/airbag-helmet.html There is a real air bag helmet, but at 300 Euros, it's a difficult sale: https://hovding.com/how-hovding-works/ In fact, given the popularity of the auto air bag systems I am amazed that this over all (would one say all in compassing?) protection scheme is not required by law in order to protect bicyclists. It helps to have a workable product before it can be made mandatory. Maybe contrive a few statistics which show that we'll all be dead without an air bag helmet. Of course claiming that what few road fatalities can be found would not have happened with an air bag helmet. We're between elections right now, so there should be a substantial number of unemployed and available political salespeople to help with the promotion in congress. If it saves but one life..... Personally, I'm wondering why nobody had contrived a bicycle with and external frame in the shape of a roll cage. The roll cage frame would be padded, so no helmet is required. Should it be involved in an accident, it would simply bounce or roll down the road with the rider never hitting the pavement. Something like this, but with only one rider: https://www.youtube.com/watch?v=jfaF5y4Q-s4 https://www.rei.com/product/113566/f...ps-bike-helmet Actually I might be interested in such a helmet. It appears that you don't have to wear anything but a cap while using that thing. |
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#12
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Technology advances, to where exactly?
On 9/30/2017 10:01 PM, Jeff Liebermann wrote:
On Sun, 01 Oct 2017 06:54:28 +0700, John B. wrote: What I had envisioned was a sort of air bag type of protection with an inflatable suit triggered by some sort of shock sensor. The resulting inflated "armor" would look something like the "the Michelin Man" You're a bit late to the party with that idea: https://www.sheldonbrown.com/airbag-helmet.html There is a real air bag helmet, but at 300 Euros, it's a difficult sale: https://hovding.com/how-hovding-works/ In fact, given the popularity of the auto air bag systems I am amazed that this over all (would one say all in compassing?) protection scheme is not required by law in order to protect bicyclists. It helps to have a workable product before it can be made mandatory. Maybe contrive a few statistics which show that we'll all be dead without an air bag helmet. Of course claiming that what few road fatalities can be found would not have happened with an air bag helmet. We're between elections right now, so there should be a substantial number of unemployed and available political salespeople to help with the promotion in congress. If it saves but one life..... Personally, I'm wondering why nobody had contrived a bicycle with and external frame in the shape of a roll cage. The roll cage frame would be padded, so no helmet is required. Should it be involved in an accident, it would simply bounce or roll down the road with the rider never hitting the pavement. Something like this, but with only one rider: https://www.youtube.com/watch?v=jfaF5y4Q-s4 Oh how timely. Yesterday Marilyn Manson proved that guns are dangerous and that one ought to wear a helmet when around them: http://www.mtv.com/news/3038734/mari...tein-ballroom/ -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#13
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Technology advances, to where exactly?
On 10/1/2017 11:49 AM, Frank Krygowski wrote:
On 10/1/2017 2:20 AM, John B. wrote: On Sat, 30 Sep 2017 20:01:03 -0700, Jeff Liebermann wrote: ... With a tiny bit larger hub generator it could have a really impressive interior and exterior lighting system as well as a electrically heated seat for those cooler days. Why, adding a rear hub generator might even allow air conditioning. The current belief is that conventional air conditioning takes way too much power for a human to provide under any circumstance. I think there might be a way around that but I've not tried it myself. Lights, yes. But I doubt any heating is ever necessary. The bigger problem seems to be keeping cool. On my normal bike, I always arrived at work at least a little sweaty, even when the temperature was in the 30s Fahrenheit. The AC sounds like a real design challenge, though. I don't have one and haven't ever had the opportunity to test-ride one--but people with velomobiles say that keeping cool isn't a problem at all, even on very hot days. The interior of a moving velomobile stays as cool as the surrounding air and most of the perception of heat that you get is from your head, which sticks up outside the bodywork in the moving air stream. Also Velomobiles also aren't normally fully-enclosed, as the humidity from perspiration and breathing usually fogs up the inside of any windshield pretty quick. The /racing/ ones are enclosed but they're not practical for everyday use, for a number of reasons. |
#14
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Technology advances, to where exactly?
On Sun, 1 Oct 2017 14:04:12 -0500, DougC
wrote: The current belief is that conventional air conditioning takes way too much power for a human to provide under any circumstance. I think there might be a way around that but I've not tried it myself. Probably, but there are better ways to stay cool: https://coolingclothing.shop/collections/evaporative-cooling https://www.thewarmingstore.com/cooling-products.html Basically, it's like wearing a swamp cooler. As the water evaporates from the surface of the vest or hat, the temperature drops. The material is PVA (poly vinyl acetate) which is quite porous which helps it retain water for longer periods. You'll find PVA cooling cloths in the headbands of better bicycle helmets. One catch is that it works rather badly in high humidity environments, where the air just can't hold any more water. It's also somewhat of a problem in very low humidity environments where the water evaporates so quickly, that you will quickly be too cold. You can get a similar cooling effect by simply having the bicycle spray you with a fine mist of water. As the water evaporates, you become cooler. Water mist spray bottles are available: http://www.ebay.com/itm/132271683794 -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#15
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Technology advances, to where exactly?
On Sun, 01 Oct 2017 12:53:16 -0700, Jeff Liebermann
wrote: On Sun, 1 Oct 2017 14:04:12 -0500, DougC wrote: The current belief is that conventional air conditioning takes way too much power for a human to provide under any circumstance. I think there might be a way around that but I've not tried it myself. Probably, but there are better ways to stay cool: https://coolingclothing.shop/collections/evaporative-cooling https://www.thewarmingstore.com/cooling-products.html Basically, it's like wearing a swamp cooler. As the water evaporates from the surface of the vest or hat, the temperature drops. The material is PVA (poly vinyl acetate) which is quite porous which helps it retain water for longer periods. You'll find PVA cooling cloths in the headbands of better bicycle helmets. One catch is that it works rather badly in high humidity environments, where the air just can't hold any more water. It's also somewhat of a problem in very low humidity environments where the water evaporates so quickly, that you will quickly be too cold. You can get a similar cooling effect by simply having the bicycle spray you with a fine mist of water. As the water evaporates, you become cooler. Water mist spray bottles are available: http://www.ebay.com/itm/132271683794 I don't know if it is used everywhere but large fans with a "water spray" system attached so that they blow a sort of fine mist are commonly used here in outdoor places where people accumulate. Think "beer garden", and they also make what might be called "room air conditioners" that are what used to be called "swamp coolers". The advantage is that a proper air conditioner exhausts about as much heat as they do cool air and just don't seem to work too well in an enclosed environment. :-) -- Cheers, John B. |
#16
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Technology advances, to where exactly?
On Sun, 1 Oct 2017 12:49:06 -0400, Frank Krygowski
wrote: On 10/1/2017 2:20 AM, John B. wrote: On Sat, 30 Sep 2017 20:01:03 -0700, Jeff Liebermann wrote: On Sun, 01 Oct 2017 06:54:28 +0700, John B. wrote: What I had envisioned was a sort of air bag type of protection with an inflatable suit triggered by some sort of shock sensor. The resulting inflated "armor" would look something like the "the Michelin Man" You're a bit late to the party with that idea: https://www.sheldonbrown.com/airbag-helmet.html There is a real air bag helmet, but at 300 Euros, it's a difficult sale: https://hovding.com/how-hovding-works/ In fact, given the popularity of the auto air bag systems I am amazed that this over all (would one say all in compassing?) protection scheme is not required by law in order to protect bicyclists. It helps to have a workable product before it can be made mandatory. Maybe contrive a few statistics which show that we'll all be dead without an air bag helmet. Of course claiming that what few road fatalities can be found would not have happened with an air bag helmet. We're between elections right now, so there should be a substantial number of unemployed and available political salespeople to help with the promotion in congress. If it saves but one life..... Personally, I'm wondering why nobody had contrived a bicycle with and external frame in the shape of a roll cage. The roll cage frame would be padded, so no helmet is required. Should it be involved in an accident, it would simply bounce or roll down the road with the rider never hitting the pavement. Something like this, but with only one rider: https://www.youtube.com/watch?v=jfaF5y4Q-s4 Given the light weight of Carbon Fiber it would probably be possible to build a all enclosing bicycle - I envision a sort of horizontal rain drop shape that would allow cycling in inclement weather as well as protecting the rider from accidents. Those exist. I've known guys who rode them, and we've had posters here who rode them. See http://www.lowtechmagazine.com/2010/...-tech-car.html With a tiny bit larger hub generator it could have a really impressive interior and exterior lighting system as well as a electrically heated seat for those cooler days. Why, adding a rear hub generator might even allow air conditioning. Lights, yes. But I doubt any heating is ever necessary. The bigger problem seems to be keeping cool. On my normal bike, I always arrived at work at least a little sweaty, even when the temperature was in the 30s Fahrenheit. But I'm forever reading about the joys of winter cycling, the big fuzzy jackets and the shoe covers, etc. The AC sounds like a real design challenge, though. Anything is possible. After all we are seeing e-bikes for people that are too lazy to pedal. Why not a m-bike for those that want to have air conditioning :-) -- Cheers, John B. |
#17
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Technology advances, to where exactly?
On Friday, September 29, 2017 at 8:27:12 AM UTC-7, AMuzi wrote:
https://cyclingindustry.news/bosch-p...ing-off-bikes/ -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 gyroscopic at balance points..with wheels on ground...energy energy https://www.google.com/search?source...48.6xFqD1kLZSI sems large companies advance patents prematurely covering ground ....having the idea daon mean production. car mag reviewers...a suspect lot ....doahn deride the anti spin electronics amiable on 6/0 vehicles* .....MBan exception having an earl gaffe with the big SUV WHD * eceptin they turn it off |
#18
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Technology advances, to where exactly?
On Sunday, October 1, 2017 at 8:39:41 PM UTC-7, wrote:
On Friday, September 29, 2017 at 8:27:12 AM UTC-7, AMuzi wrote: https://cyclingindustry.news/bosch-p...ing-off-bikes/ -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 gyroscopic at balance points..with wheels on ground...energy energy https://www.google.com/search?source...48.6xFqD1kLZSI sems large companies advance patents prematurely covering ground ....having the idea daon mean production. car mag reviewers...a suspect lot ....doahn deride the anti spin electronics amiable on 6/0 vehicles* .....MBan exception having an earl gaffe with the big SUV WHD * eceptin they turn it off reboot |
#19
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Technology advances, to where exactly?
On Sunday, October 1, 2017 at 8:20:57 PM UTC-4, John B. wrote:
I don't know if it is used everywhere but large fans with a "water spray" system attached so that they blow a sort of fine mist are commonly used here in outdoor places where people accumulate. Think "beer garden", and they also make what might be called "room air conditioners" that are what used to be called "swamp coolers". We bought one of the pressurized bottle personal misters during one of our trips to New Mexico. It worked well for my wife, who doesn't tolerate heat well. It seems noticeably less effective here in humid Ohio. What's the typical humidity levels where you see the water spray fans used? Maybe I should rig up something like that for our sunny patio, for next summer. - Frank Krygowski |
#20
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Technology advances, to where exactly?
On Monday, October 2, 2017 at 12:15:30 PM UTC-7, Frank Krygowski wrote:
On Sunday, October 1, 2017 at 8:20:57 PM UTC-4, John B. wrote: I don't know if it is used everywhere but large fans with a "water spray" system attached so that they blow a sort of fine mist are commonly used here in outdoor places where people accumulate. Think "beer garden", and they also make what might be called "room air conditioners" that are what used to be called "swamp coolers". We bought one of the pressurized bottle personal misters during one of our trips to New Mexico. It worked well for my wife, who doesn't tolerate heat well. It seems noticeably less effective here in humid Ohio. What's the typical humidity levels where you see the water spray fans used? Maybe I should rig up something like that for our sunny patio, for next summer. - Frank Krygowski if the patio has unsurfaced concrete or brick watering after noon produces significant local temp reduction poly 90% cotton 10% or 20 shirts when watered are cold but warmer+ than 100% poly dry .....select for conditions ...next year weather in Flagstaff is AAA but DOWNWIND |
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