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#21
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Best way to measure Watts-
Bob Schwartz wrote:
http://anonymous.coward.free.fr/rbr/schwartzpursuit.png My very own Chung Chart. Coggan provides a good explanation. http://groups.google.com/group/rec.b...165fe820602ef4 Bob Schwartz Thanks Bob! Steve -- Mark & Steven Bornfeld DDS http://www.dentaltwins.com Brooklyn, NY 718-258-5001 |
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#22
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Best way to measure Watts-
Bob Schwartz wrote:
Mark & Steven Bornfeld wrote: MagillaGorilla wrote: Bob Schwartz wrote: MagillaGorilla wrote: cycledogg wrote: I am considering getting into using watts measured for training this season. Which is the best or most accurate way to measure, Powermeter from the rear hub or SRM from the crank? Cheers and Happy Holidays, Rick in Tennessee You are better off setting aside that $2-3,000 for spare tires and parts. A power meter won't help you get better and it's very unlikely the rate limiting factor in your training is 'knowledge' of your power. Power meters are the lastest fad for a lot of morons and 150-mile/week cyclists who micromanage their on-bike training and think they're training scientifically. In reality, most of your limitations in maximimizing your fitness are going to be things like money, free time, rest time, daily stress from your job/school, genetics, diet, etc.. In order to justify the cost of a power meter, it means you have all these other things under control, which you don't. So I recommend you put that money into other things that will help your fitness more than a power meter. Magilla I used a PowerTap to show that it is possible to simultaneously cut power and accelerate in a velodrome turn. Bob Schwartz Hey Joker, Bearing in mind that energy cannot be created or destroyed, where does this extra energy come from? You sound like someone who has submitted multiple patent applications for a perpetual motion machine to the U.S. Patent & Trademark Office in Washington D.C. Magilla Hopefully the physics mavens can chime in--it has to do with angular momentum, but I'm pretty sure Bob is right--of course if power isn't added then there will be a marked deceleration coming out of the turn. Steve http://anonymous.coward.free.fr/rbr/schwartzpursuit.png My very own Chung Chart. Coggan provides a good explanation. http://groups.google.com/group/rec.b...165fe820602ef4 Bob Schwartz Physics 101: Energy cannot be created or destroyed, only changed from one form to another. So unless someone in here is Einstein and wants to change the understanding of modern physics with a new theory on the conservation of energy, I think it's safe to conclude there is no energy (or speed) gain. I don't need to ask anyone else's opinion. You can't gain speed or energy in a turn. Any speed gain you get from your initial lean into a turn MUST BE lost (plus some) while exiting that same turn because it takes longer (and more energy) to bring yourself upright and raise yourself than it would had you ridden that same distance on a straightaway and never had to lean up or down to begin with. On a straightaway, that same energy is put into the pedals. You are losing substantial amounts of energy in a turn via friction. Nothing is free in energy equations. Magilla |
#23
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Best way to measure Watts-
SLAVE of THE STATE schreef:
Don't get wireless -- there will be a built-in error of a few percent due to background radiation from the big bang. Only for the first three minutes of the race. |
#25
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Best way to measure Watts-
Interpreting power meter data is complex and beyond the scope of most
people, includiing trainers. That's just not true. You just earned yourself an invitation to the powermeter file reading interpretation camp I'm putting on United Center. See you there 7 p.m. this Friday. |
#26
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Best way to measure Watts-
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#27
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Best way to measure Watts-
MagillaGorilla wrote:
So I recommend you put that money into other things that will help your fitness more than a power meter. Dumbass, Perhaps if you got a power meter you'd be faster around turns. |
#28
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Best way to measure Watts-
On Dec 3, 7:07 pm, MagillaGorilla wrote:
Bob Schwartz wrote: Mark & Steven Bornfeld wrote: MagillaGorilla wrote: Bob Schwartz wrote: MagillaGorilla wrote: cycledogg wrote: I am considering getting into using watts measured for training this season. Which is the best or most accurate way to measure, Powermeter from the rear hub or SRM from the crank? Cheers and Happy Holidays, Rick in Tennessee You are better off setting aside that $2-3,000 for spare tires and parts. A power meter won't help you get better and it's very unlikely the rate limiting factor in your training is 'knowledge' of your power. Power meters are the lastest fad for a lot of morons and 150-mile/week cyclists who micromanage their on-bike training and think they're training scientifically. In reality, most of your limitations in maximimizing your fitness are going to be things like money, free time, rest time, daily stress from your job/school, genetics, diet, etc.. In order to justify the cost of a power meter, it means you have all these other things under control, which you don't. So I recommend you put that money into other things that will help your fitness more than a power meter. Magilla I used a PowerTap to show that it is possible to simultaneously cut power and accelerate in a velodrome turn. Bob Schwartz Hey Joker, Bearing in mind that energy cannot be created or destroyed, where does this extra energy come from? You sound like someone who has submitted multiple patent applications for a perpetual motion machine to the U.S. Patent & Trademark Office in Washington D.C. Magilla Hopefully the physics mavens can chime in--it has to do with angular momentum, but I'm pretty sure Bob is right--of course if power isn't added then there will be a marked deceleration coming out of the turn. Steve http://anonymous.coward.free.fr/rbr/schwartzpursuit.png My very own Chung Chart. Coggan provides a good explanation. http://groups.google.com/group/rec.b...165fe820602ef4 Bob Schwartz Physics 101: Energy cannot be created or destroyed, only changed from one form to another. So unless someone in here is Einstein and wants to change the understanding of modern physics with a new theory on the conservation of energy, I think it's safe to conclude there is no energy (or speed) gain. I don't need to ask anyone else's opinion. You can't gain speed or energy in a turn. Any speed gain you get from your initial lean into a turn MUST BE lost (plus some) while exiting that same turn because it takes longer (and more energy) to bring yourself upright and raise yourself than it would had you ridden that same distance on a straightaway and never had to lean up or down to begin with. On a straightaway, that same energy is put into the pedals. You are losing substantial amounts of energy in a turn via friction. Nothing is free in energy equations. Magilla Nothing is free in energy equations. Gibbs energy is occasionally free, but that would head off the highway of Newtonian mechanics and over into chemistry, which would probably lead to the dark side ... -bdbafh |
#29
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Best way to measure Watts-
bdbafh wrote:
Gibbs energy is occasionally free, but that would head off the highway of Newtonian mechanics and over into chemistry, which would probably lead to the dark side ... If its a free lunch its probably andoulette. |
#30
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Best way to measure Watts-
MagillaGorilla wrote:
Physics 101: Dumbass, You mean Geometry 101, don't you. The largest effect has nothing to do with physics. Bob Schwartz |
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