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#371
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Making America into Amsterdam
On Sunday, July 29, 2018 at 6:33:43 AM UTC-4, Duane wrote:
sms wrote: On 7/28/2018 12:08 PM, Duane wrote: sms wrote: On 7/27/2018 6:05 AM, Duane wrote: snip Maybe they aren't LED but these Zenon HID lights: https://www.powerbulbs.com/ca/blog/2...car-headlights Xenon are not HID, they are incandescent. A long time ago, in the U.S., high beams were called "brights" or "bright lights." There used to be a little round metal foot switch on the floor by the driver's left foot, i.e. https://www.waalfm.com/img/waalfm/car-highbeamswitch-800-x-600.jpg. This is what Frank was talking about when he stated "sometimes when I'm riding at night an oncoming motorist will actually turn on his brights." He wasn't referring to HID or LED headlights. Not many people still call high-beams "brights." Many high end vehicles have HID headlights, and the DOT hasn't (or hadn't) caught up with the problem of rating headlights by wattage. A 35W HID is much brighter than a 35W incandescent. A 35W HID will produce about 3200 lumens. The brightest 35W low beam incandescent is about 900 lumens. Some LED low beams claim 6000 or more lumens, and you can see the elaborate thermal solutions they use, including some with cooling fans, and some with huge heat sinks, heat pipes, or copper braid, but the actual LED output is about 3000 lumens. In any case, for a cyclist to intentionally use sub-standard lighting, and then complain a vehicle driver uses their high-beams, or "brights" as they used to be called, is ludicrous. You will not change ingrainde driver behavior by insisting that if you use minimally legal lighting that they should be able to see you easily at night. If a driver thinks that they glimpse an animal, pedestrian, cyclist, etc., at night, they will turn on their high beams, and it's not to be obnoxious. The way to stop this, as a cyclist anyway, is to use good lighting so the vehicle driver easily sees you with their low beams. It's not a costly endeavor. Being stubborn is unwise. Not according to the link I cited: Xenon HID (High Intensity Discharge) bulbs are filled with Xenon gas and contain two electrodes - one on each end of the tube-like bulb. When the bulb is switched on, an electric current passes between the two electrodes and the Xenon gas lights up. The Xenon gas is actually only used during the start-up of the bulb. Once the desir No, the presence of Xenon does not imply HID. See https://www.amazon.com/dp/B005KDO9KE These HID lights use Xenon. No one said Xenon = HID. Whatever. The blue tinted super bright light that we were talking about seems to be what these lights supply. It isn’t a case of cyclists causing people to use their high beams or “brights” because they aren’t using bright enough lights on their bikes. -- duane Correct. What I was talking about are those super bright low-beam blueish tinted (I don't care what type of bulb it has when it blinds me) car lights that are so bright at night even on a WELL LIGHTED CITY STREET that a bicyclist approaching that car and the bicyclist riding in the traffic lane is blinded to the point that they have to stop in case there's a stopped car in front of them. I've had that happen many times here in town. Seems that lumen wars are raging in motor cars as well as on bicycles. Cheers |
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#372
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Making America into Amsterdam
John B. Slocomb writes:
Or just don't ride at night :-) Riding at night thru a neon lit city is one of the best feelings in the world. To make it even better, one can take an ice-cold shower - with the lights off - before one does it, to heighten the senses even more. It is like riding a space ship in a science fiction movie -- underground experts exiled http://user.it.uu.se/~embe8573 |
#373
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Making America into Amsterdam
On 7/29/2018 7:46 AM, Emanuel Berg wrote:
John B. Slocomb writes: Or just don't ride at night :-) Riding at night thru a neon lit city is one of the best feelings in the world. To make it even better, one can take an ice-cold shower - with the lights off - before one does it, to heighten the senses even more. It is like riding a space ship in a science fiction movie While I skipped the cold shower, I used to lead "All-Night-Bike-Rides" in San Francisco and in Silicon Valley. Well attended by bicycle club members and Sierra Club Bicycling Section members. "Don't ride at night" is bad advice, IMVAIO, though John wasn't serious. If you use good lighting you're actually more conspicuous at night than unlit in the daytime, though now a large percentage of cyclists use daytime lighting as well. Yesterday at about 10 a.m. I was going to a meeting and had to cross a very busy bicycle route, Foothill Boulevard. A stream of road bikes was coming down the hill, at high speed, with about 70% of them with daytime running lights either steady or flashing. It's in situations like that, where motorists may not realize just how fast a bicycle is capable of going, that the daytime lights are especially important. Sadly, the meeting I was going to was regarding a developer's plans to demolish a very old strip shopping center ,200m/data=!3m1!1e3 to build housing and ground floor retail. It's where the famous Cupertino Bike Shop, started by Spence Wolf http://sporttoday.org/31_45d76c6fd03802c6_1.htm, is currently located. I don't what the owner will do, hopefully he can find another place with sufficiently cheap rent. It's the only high-end road bike shop in the area now that Chain Reaction closed their Los Altos store, though we just got a high-end mountain bike store https://trailheadcyclery.com/we-are-moving-to-cupertino/ in a former gun store--the perfect transition. |
#374
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Making America into Amsterdam
On Sun, 29 Jul 2018 06:33:28 -0700 (PDT), Sir Ridesalot
wrote: Correct. What I was talking about are those super bright low-beam blueish tinted (I don't care what type of bulb it has when it blinds me) car lights that are so bright at night even on a WELL LIGHTED CITY STREET that a bicyclist approaching that car and the bicyclist riding in the traffic lane is blinded to the point that they have to stop in case there's a stopped car in front of them. Those blue lights are painful even when one is a passenger in a car. By great good fortune, they are getting less common. -- Joy Beeson joy beeson at comcast dot net --- This email has been checked for viruses by AVG. https://www.avg.com |
#375
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Making America into Amsterdam
On 7/28/2018 9:29 PM, John B. Slocomb wrote:
On Sat, 28 Jul 2018 17:18:17 -0400, Frank Krygowski wrote: On 7/28/2018 3:41 PM, Joerg wrote: On 2018-07-27 16:24, Frank Krygowski wrote: On 7/27/2018 3:42 PM, Joerg wrote: [...] Yesterday I rode through a long narrow bike path tunnel underneath Hwy 50. All others generally blow through there at their full 15-25mph, in almost total darkness. Yet this is a place where rattlesnakes often curl up to cool off. I always go through there at 5mph with my headlight at full power. Because of rattlers and because there is the occasional homeless person sleeping off yesterday's hangover. Ah, rattlesnakes in tunnels! Another deadly hazard in Joergland! So, how many tunnel rattlesnake bike fatalities in your very special area? Rattlesnake bites are rarely fatal. They are, however, nasty, will thoroughly ruin you day and then some, plus the antivenom is very expensive and will set podeple back fiancially via a four-digit copay. Running into a soused guy in a sleeping bag isn't so cool either. Such extra caution costs next to nothing in equipment and "lost" time. $30-40 for a good lighting system and throttling to 5mph for less than a minute isn't excessive in my book. I have met a guy how had a nasty crash in such a tunnel. He hit a beer bottle that he didn't see. I would have seen it. It's as simple as that. I have a friend who tripped over at tree root while walking. Cracked rib and black and blue face. It's a dangerous world, all right! You can even die from falling out of bed.... and 3 times the numbers of people die from falling out of bed as die from bicycle crashes in California. Are "Bed Helmets" next on the agenda? https://www.brainjet.com/random/2352...uldnt-believe/ https://www.quora.com/Why-does-falli...icans-annually https://www.quora.com/Why-does-falli...icans-annually Would safety belts for snoozers make them safer? Well, if only ONE life can be saved... ! -- - Frank Krygowski |
#376
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Making America into Amsterdam
On Sun, 29 Jul 2018 14:07:06 -0400, Frank Krygowski
wrote: On 7/28/2018 9:29 PM, John B. Slocomb wrote: On Sat, 28 Jul 2018 17:18:17 -0400, Frank Krygowski wrote: On 7/28/2018 3:41 PM, Joerg wrote: On 2018-07-27 16:24, Frank Krygowski wrote: On 7/27/2018 3:42 PM, Joerg wrote: [...] Yesterday I rode through a long narrow bike path tunnel underneath Hwy 50. All others generally blow through there at their full 15-25mph, in almost total darkness. Yet this is a place where rattlesnakes often curl up to cool off. I always go through there at 5mph with my headlight at full power. Because of rattlers and because there is the occasional homeless person sleeping off yesterday's hangover. Ah, rattlesnakes in tunnels! Another deadly hazard in Joergland! So, how many tunnel rattlesnake bike fatalities in your very special area? Rattlesnake bites are rarely fatal. They are, however, nasty, will thoroughly ruin you day and then some, plus the antivenom is very expensive and will set podeple back fiancially via a four-digit copay. Running into a soused guy in a sleeping bag isn't so cool either. Such extra caution costs next to nothing in equipment and "lost" time. $30-40 for a good lighting system and throttling to 5mph for less than a minute isn't excessive in my book. I have met a guy how had a nasty crash in such a tunnel. He hit a beer bottle that he didn't see. I would have seen it. It's as simple as that. I have a friend who tripped over at tree root while walking. Cracked rib and black and blue face. It's a dangerous world, all right! You can even die from falling out of bed.... and 3 times the numbers of people die from falling out of bed as die from bicycle crashes in California. Are "Bed Helmets" next on the agenda? https://www.brainjet.com/random/2352...uldnt-believe/ https://www.quora.com/Why-does-falli...icans-annually https://www.quora.com/Why-does-falli...icans-annually Would safety belts for snoozers make them safer? Well, if only ONE life can be saved... ! I just read that "More than 95% of the world\u2019s population breathe unsafe air" and "Total air pollution was responsible for 6.1 million deaths in 2016". It sounds as though just being born is tantamount to a death's sentence. |
#377
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Making America into Amsterdam
On 7/27/2018 3:32 AM, Duane wrote:
snip No one was talking about high beams. They were talking about the LED or whatever headlights that give off a bright bluish tinted light. Bright enough to seem like they’re high beams. Frank was talking about high beams, or "brights." HID is less of an issue because they are aimed as low-beams. But they should adapt to ambient conditions and they don't, at least in the U.S.. |
#378
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Making America into Amsterdam
On 7/29/2018 3:11 PM, John B. Slocomb wrote:
It sounds as though just being born is tantamount to a death's sentence. Yep. At my age, that's starting to worry me. -- - Frank Krygowski |
#379
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Making America into Amsterdam
On Friday, July 27, 2018 at 11:34:00 PM UTC-7, John B. Slocomb wrote:
A guy in the welding shop breathed too many zinc fumes and was all curled up and groaning so we took him to the Emergency Clinic (USAF) where we were trying to explain to the doctor on duty that "It isn't an appendix, the guy's got galvanized poisoning". Had the doctor's mate not come in and looked up zinc in the poison handbook they would have started cutting. They do not operate without X-rays. |
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