#171
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On Thu, 16 Mar 2017 07:48:28 -0500, AMuzi wrote:
---A whole bunch deleted --- No one analyzed this subject better than the genius Ludwig von Mises: “Opium and morphine are certainly dangerous, habit-forming drugs. But once the principle is admitted that it is the duty of government to protect the individual against his own foolishness, no serious objections can be advanced against further encroachments... Why limit the government’s benevolent providence to the protection of the individual’s body only?” Mises asks. “Is not the harm a man can inflict on his mind and soul even more disastrous than any bodily evils? Why not prevent him from reading bad books and seeing bad plays, from looking at bad paintings and statues and from hearing bad music?” and further: “He who wants to reform his countrymen must take recourse to persuasion. This alone is the democratic way of bringing about changes. If a man fails in his endeavors to convince other people of the soundness of his ideas,” Mises concludes, “he should blame his own disabilities. He should not ask for a law, that is, for compulsion and coercion by the police.” Which of course brings us right down to 2017. This insane urge to protect the ignorant, or just stupid, from their own folly seems to be a legacy of the "Middle East" religions and the is largely missing from the "Far East" religions, and would seem to fly in the face of the Darwin theory, which might be termed "survival of the fittest". But something I've always wondered about. We have all these groups striving to protect the poor ignorant purchaser from those spiteful manufacturers who fail to tell them that "not tightening this nut may cause the wheel to fall off". Why isn't there a law to protect the poor maligned manufacturer from the totally inept users who, for example, order a cup of hot coffee and than proceed to spill it in their own lap and than argue that it was the vendor's fault that they got burned. Or to use a bit more recent theory, "It is the bank's fault that I am in debt since if they hadn't loaned me the money I couldn't have spent it" :-) -- Cheers, John B. |
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#172
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On 3/16/2017 7:38 PM, John B. wrote:
On Thu, 16 Mar 2017 07:48:28 -0500, AMuzi wrote: ---A whole bunch deleted --- No one analyzed this subject better than the genius Ludwig von Mises: “Opium and morphine are certainly dangerous, habit-forming drugs. But once the principle is admitted that it is the duty of government to protect the individual against his own foolishness, no serious objections can be advanced against further encroachments... Why limit the government’s benevolent providence to the protection of the individual’s body only?” Mises asks. “Is not the harm a man can inflict on his mind and soul even more disastrous than any bodily evils? Why not prevent him from reading bad books and seeing bad plays, from looking at bad paintings and statues and from hearing bad music?” and further: “He who wants to reform his countrymen must take recourse to persuasion. This alone is the democratic way of bringing about changes. If a man fails in his endeavors to convince other people of the soundness of his ideas,” Mises concludes, “he should blame his own disabilities. He should not ask for a law, that is, for compulsion and coercion by the police.” Which of course brings us right down to 2017. This insane urge to protect the ignorant, or just stupid, from their own folly seems to be a legacy of the "Middle East" religions and the is largely missing from the "Far East" religions, and would seem to fly in the face of the Darwin theory, which might be termed "survival of the fittest". But something I've always wondered about. We have all these groups striving to protect the poor ignorant purchaser from those spiteful manufacturers who fail to tell them that "not tightening this nut may cause the wheel to fall off". Why isn't there a law to protect the poor maligned manufacturer from the totally inept users who, for example, order a cup of hot coffee and than proceed to spill it in their own lap and than argue that it was the vendor's fault that they got burned. Or to use a bit more recent theory, "It is the bank's fault that I am in debt since if they hadn't loaned me the money I couldn't have spent it" :-) That's just crazy talk. Removing impediments like that from American industry would make comparable goods cost the same to make here as in Thailand! No one who gets to decide wants any part of that. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#173
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On 3/16/2017 8:17 PM, jbeattie wrote:
On Thursday, March 16, 2017 at 2:13:53 PM UTC-7, James wrote: On 16/03/17 16:44, Sir Ridesalot wrote: On Wednesday, March 15, 2017 at 5:40:55 PM UTC-4, James wrote: At creeping speeds (less than 10km/h), I could see holes with a candle light. Must be nice to be blessed with such perfect vision! many of us find that we need a prety bright light in order to see where we're going and the obstacles to avoid at night. that's not to mention that it's nice to be able to see critters on theroads or trails in time to slow or stop to avoid running over them. Personally, I like a supplemental High beam light so that ican see a longer way down an unlit very dark road on a moonless night so I can see the skunks at the side of the road or on the road well BEFORE I startle them. YMMV If you need a high beam light to see enough not to bump in to things at night while you are moving at less than 10km/h ( 6 miles/h), you have really poor eyesight. Do you walk with a white cane? What do you mean by a high beam light? Personally, I need more than a candle to see holes in wet pavement, blow-down and gravel even when creeping along at less than 10km. YMMV. Seriously, if your headlight looks like a candle at 10kph, something is wrong with your system. There is no speed low enough to make my light so dim that I can't see potholes and road debris. Have you put a meter on it yet? -- - Frank Krygowski |
#174
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On Thursday, March 16, 2017 at 7:19:30 PM UTC-7, Frank Krygowski wrote:
On 3/16/2017 8:17 PM, jbeattie wrote: On Thursday, March 16, 2017 at 2:13:53 PM UTC-7, James wrote: On 16/03/17 16:44, Sir Ridesalot wrote: On Wednesday, March 15, 2017 at 5:40:55 PM UTC-4, James wrote: At creeping speeds (less than 10km/h), I could see holes with a candle light. Must be nice to be blessed with such perfect vision! many of us find that we need a prety bright light in order to see where we're going and the obstacles to avoid at night. that's not to mention that it's nice to be able to see critters on theroads or trails in time to slow or stop to avoid running over them. Personally, I like a supplemental High beam light so that ican see a longer way down an unlit very dark road on a moonless night so I can see the skunks at the side of the road or on the road well BEFORE I startle them. YMMV If you need a high beam light to see enough not to bump in to things at night while you are moving at less than 10km/h ( 6 miles/h), you have really poor eyesight. Do you walk with a white cane? What do you mean by a high beam light? Personally, I need more than a candle to see holes in wet pavement, blow-down and gravel even when creeping along at less than 10km. YMMV. Seriously, if your headlight looks like a candle at 10kph, something is wrong with your system. There is no speed low enough to make my light so dim that I can't see potholes and road debris. Have you put a meter on it yet? Not yet, but I'm not really talking about my headlight. I'm responding to James' statement that a candle should produce enough light to ride a bike at under 10kph. -- Jay Beattie. |
#175
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On Thu, 16 Mar 2017 20:37:22 -0500, AMuzi wrote:
even more deleted Or to use a bit more recent theory, "It is the bank's fault that I am in debt since if they hadn't loaned me the money I couldn't have spent it" :-) That's just crazy talk. Removing impediments like that from American industry would make comparable goods cost the same to make here as in Thailand! No one who gets to decide wants any part of that. I recently read an statement by one of the Thai ministers that the very recent increase in the U.S. prime rate, which effectively causes the value of the U.S. dollar to increase relative to other currencies, will benefit Thailand as they expect that trade with the U.S. will increase due to the effective decrease in the cost (in dollars) of Thai goods. And, of course, an increase in interest rates also increases the cost of doing business which in turn increases the cost of U.S. made goods, which makes the spread between U.S. and foreign goods even greater.. -- Cheers, John B. |
#176
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On Thursday, March 16, 2017 at 5:13:53 PM UTC-4, James wrote:
On 16/03/17 16:44, Sir Ridesalot wrote: On Wednesday, March 15, 2017 at 5:40:55 PM UTC-4, James wrote: At creeping speeds (less than 10km/h), I could see holes with a candle light. Must be nice to be blessed with such perfect vision! many of us find that we need a prety bright light in order to see where we're going and the obstacles to avoid at night. that's not to mention that it's nice to be able to see critters on theroads or trails in time to slow or stop to avoid running over them. Personally, I like a supplemental High beam light so that ican see a longer way down an unlit very dark road on a moonless night so I can see the skunks at the side of the road or on the road well BEFORE I startle them. YMMV If you need a high beam light to see enough not to bump in to things at night while you are moving at less than 10km/h ( 6 miles/h), you have really poor eyesight. Do you walk with a white cane? -- JS No, I use sonar. LOL We're talking about two different things now. There are times when I DO NEED a bright light at slow speeds and there are times one I want a bright light that illuminates the roasd a long way in front of me. A dynamo hub light for ME just doesn't meet MY needs. I like to be able to see critters and debris on the road BEFORE I hit them or in the case of critters like skunks startle them. I also like to be able o tell the difference between a small branch on the road or trail at night and a snake again BEFORE I hit it .YMMV Cheers |
#177
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On Thu, 16 Mar 2017 20:26:57 -0700 (PDT), jbeattie
wrote: Not yet, but I'm not really talking about my headlight. I'm responding to James' statement that a candle should produce enough light to ride a bike at under 10kph. -- Jay Beattie. Nobody seemed to like my acetylene lantern alternative, so now we're doing candles. Sigh. One candlepower = 0.981 candelas = 12.57 lumens. However, this is tricky because candlepower and candelas are a measure of light at the source, not light at the object illuminated. This might help (or add to the confusion): http://www.theledlight.com/lumens.html My eyesight is slowly deteriorating. When riding, I don't wear corrective glasses. The result is that I can see fairly well past about 7 meters, but anything closer is otto focus. Potholes are usually closer, so all I see is a blur on the roadway. More light is a big help, especially if there's a shadow available to highlight the edge of the pothole. At night, potholes just merge into the road debris. My solution is to avoid riding at night, or ride very slowly and carefully. I think these are for a bicycle but I'm not certain. https://s-media-cache-ak0.pinimg.com/564x/b0/bf/b1/b0bfb19778bfa3f85b8849983bc0d2f3.jpg https://s-media-cache-ak0.pinimg.com/236x/6e/23/fd/6e23fd668b4e57681b8bcbdff7ec71f6.jpg -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#178
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On 3/16/2017 2:13 PM, James wrote:
On 16/03/17 16:44, Sir Ridesalot wrote: On Wednesday, March 15, 2017 at 5:40:55 PM UTC-4, James wrote: At creeping speeds (less than 10km/h), I could see holes with a candle light. Must be nice to be blessed with such perfect vision! many of us find that we need a prety bright light in order to see where we're going and the obstacles to avoid at night. that's not to mention that it's nice to be able to see critters on theroads or trails in time to slow or stop to avoid running over them. Personally, I like a supplemental High beam light so that ican see a longer way down an unlit very dark road on a moonless night so I can see the skunks at the side of the road or on the road well BEFORE I startle them. YMMV If you need a high beam light to see enough not to bump in to things at night while you are moving at less than 10km/h ( 6 miles/h), you have really poor eyesight. Do you walk with a white cane? On MUPs you often have to go slow, both because there's a speed limit and because they tend to have a lot of sharp turns as they go over and under roads, railroad tracks, and streams. They often have no lighting. Plus, as you age your night-vision gets worse. In short, when you're riding on well-lit roads, or well-lit bicycle infrastructure, you may not need much of a light on your bike, but there are definitely situations where you do need a lot of light. Hybrid lights would be the best solution. The necessary brightness wouldn't be determined solely by how fast you're riding, it'd be determined by where you're riding. |
#179
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More About Lights
On 3/13/2017 12:28 PM, Joerg wrote:
snip You could stick in a Murata LXDC55FAAA-203 http://power.murata.com/data/power/LXDC55FAAA-203_data_sheet_E.pdf instead of the zener and do a USB version also with only three parts. But I know that you love designing your own switchers. $3.50? Mon Dieu! :-) I got some of the Murata LXDC55FAAA-203 units from Digikey for use at work. I guess I didn't realize from the picture on the data sheet just how tiny these things are. Maybe I'll buy some more and try building some dynamo to USB adapters. |
#180
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On 2017-03-17 12:11, sms wrote:
On 3/13/2017 12:28 PM, Joerg wrote: snip You could stick in a Murata LXDC55FAAA-203 http://power.murata.com/data/power/LXDC55FAAA-203_data_sheet_E.pdf instead of the zener and do a USB version also with only three parts. But I know that you love designing your own switchers. $3.50? Mon Dieu! :-) I got some of the Murata LXDC55FAAA-203 units from Digikey for use at work. I guess I didn't realize from the picture on the data sheet just how tiny these things are. Maybe I'll buy some more and try building some dynamo to USB adapters. Be carful with that 16V abs max input limit. When the load current drops this can easily be exceeded by a dynamo, big time. You could burn off the excess with a zener diode or TVS (though _not_ MOV) but these have large tolerances and could burn out if not well heat sinked. I think you need somthing automotive here, some circuit that can stomach 50V or more. -- Regards, Joerg http://www.analogconsultants.com/ |
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