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Wow, one watt is really very little energy



 
 
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  #11 (permalink)  
Old January 15th 07, 12:24 AM posted to rec.audio.tubes,uk.rec.audio
Andre Jute
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Posts: 720
Default Wow, one watt is really very little energy


Poopie absolutely foamed at the mouh in outrage:
Andre Jute wrote:

Here, with thanks to those who offered amendation, is the
corrected version in which, as Ian Bell has pointed out, 1kW is still
860kcal


No it sodding well isn't !

*1kWh* is 860kcal.

You simply can't get anything right can you, even on your so-called 'correction'
post.

Graham


That's why I have scores of diplomaed quarterwits waiting for me to
break wind, so they can light the gas and have the darkness of their
miserable souls illuminated for a fraction of second in which they too
can feel important and alive. Try to imagine, Poopie, if I took care of
such details, what would you do to prove to yourself that you aren't
fertilizer yet?

Andre Jute
Our legislators managed to criminalize fox-hunting and smoking; when
they will get off their collective fat backside and criminalize
negative feedback? It is clearly consumed only by undesirables like
Graham "Poopie" Stevenson

  #12 (permalink)  
Old January 15th 07, 05:03 AM posted to rec.audio.tubes,uk.rec.audio
Patrick Turner
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Posts: 327
Default Wow, one watt!!!, and road cycling interista informatums.



Andre Jute wrote:

Every time I come back from riding my bike, the bike computer tells me,
among other useful information like my pulse rate, how high the hills
were, how fast I pedalled, what my road speed was, the temperature,
rates of descent, etc, etc, etc, much more stuff which I have my
computer print out in neat graphs. Among all this the bike computer
tells me how many watts I expended. The thing cheats of course, as it
takes a downhill or level-road ride as zero watts (you're still
expending energy). It gives peak output and an average for the ride. So
the energy expended is the length of the ride (it only ticks the clock
when the wheels are moving) multiplied by the average output.


Gee, who bothers with having a damned computer to tell us about our ride
when
it is NOT needed or wanted?

It seems a cyclists's computer has grown bells and whistles over the
last 15 years.
In 1991, when I last seriously competetd as a 44 yr old veteran in the
local club's B class division the handlebar mounted 'cyclometer' as it
was called then
simply timed the ride and gave the average speed for the ride as an
updated figure as you went along.
It could be stopped and started at any time to take out time spent
stationery at traffic lights
or at a cafe at which i never ever stopped at back in those days.

The cyclometer was a good training aid as described and I never bothered
with what was an expensive
heartrate monitor to tell me to whip myself harder while climbing a hill
or doing a time trial
if my heart rate fell below ( 220 minus my age ), a figure regarded as
safe
for any cyclist for at least an hour.

I have re-commenced cycling after a 13 year lay-off, but no competition
yet.
I did have serious knee troubles probably caused by a life of
accumulated
cartlidge injuries which seem much better now after an operation and
some rest and change of
occupation from carpenter-builder to tube amp craftsman.

But during the 13 years I went from 82Kg to 92Kg.
But since last July, my weight has dropped from 92Kg to 77Kg, and I have
another 2Kg to lose
before I feel that I will be about the right weight allowing for the
fact that
one inevitably will loose about 10% of muscle per decade, and I consider
that
a bodily fat content of roughly 10% to 15% is about right, although its
hard to
measure this without doing a serious test at the local Australian
Institute of Sport
where they train and test Australia's leading elite cysclists.
I am not able to access their services, and don't want to; looking at
myself in the mirror
after 6mths cycling and about 5,000 kms tells me I ain't too skinny, and
am appraoching
the ideal level of muscle definition and body build that all very
healthy males should aspire to.



But get
this, one kilowatt-hour is 860kJ. So, if you've gone for a ride that
will burst your average audiophile (middle-aged, overweight, fatarsed,
except for Patrick and me, who are ex-athletes and cyclists still) out
into heavy perspiration, say 100W average for an hour, which allows for
some extended peaks at 250W which will drive his heartbeat up to the
maximum, which does no one any good, is 0.1kW or 86kJ. In other words,
an hour's hard ride burns only 86 nutritional calories. You see, those
calories on food packets are really kiloJoules aka "nutritional
calories". You guys better stop eating altogether or you'll have to be
on your bikes eight hours a day.



I was very happy to find that when I re-commenced cycling that my knees
got less sore,
and that the exercise made me fitter.

I am so glad to have placed the old cyclometer I used in the "old days"
into the bin.

And I sure ain't looking for a latter day gadget to tell me how many
calories I have burnt.

At 44, and because I was 82Kg, if I went out and averaged say 32km/hr
over "average terrain"
ie, with a medium amount of hill climbing, then I would have been
burning about
600 calories per hour above what i used when not cycling, which was
about 100 calories, ( 2,400 cal/ day ).
So to lose weight, if I cycled for 2 hours at 32k/h and ate 2,400 cals,
the calorie deficit was 1,200 calories, which equates to about 120gms of
fat loss.
The calorie accounting and fat burning is all slightly more complicated
than this
but basically it was about what I said, and to maintain 82Kg in 1991,
I had to eat more than 2,400 cals per day if I cycled an average of
300km per week
to hold my competiviveness in B grade.
Weight loss is all about running a "calorie deficit", something most ppl
are far too weak willed
to do after week 1, so they binge in week2, and end up fatter.
And its remarkable how so many folks give all sorts of excuses for not
losing weight.
But this I understand, having spent time being UNABLE to use the main
power producing
muscles, those behind your femurs connecting the arse bone to knee
bones.
I was on the hospital waiting list for titanium knees, and it looks like
I can go somewhat
further on my own before accepting the invasive surgery option to make
life more doable.
I was even on Celebrex and Vioox for the knee pain and this **** from
the drug company
has killed quite a few ppl with heart attacks and the company is being
sued for millions and the drugs are now banned for sale.
I am lucky to have escaped injury from the drug side effects, but
probably they
promoted weight gain, since so many drugs do this.

Now days I am doing less distance at a lower average speed; whatever it
is I don't exactly know,
and don't need to know, I am passing most cyclists rather than being
passed by them as I ride around this town's
hundreds of kilometres of cycle paths and low traffic density roads.
Maybe I am burning 500cals now instead of 600 for a medium difficulty
ride. The difference between what efforts
produce in weight loss at 60 is only marginal compared to being 40.
Some rides are what I call damned hard, with lots of hills during a 100k
ride,
and I think the slopes of the hills as well as the headwinds have
generally increased in
angle and velocity over the last 15 years :-0
It feels like it, but I manage the same hills
but at slightly lower speed than 15 years ago; something has to give at
increasing age.
When a 20 year old passes me now I don't care because i'm 39 years
older.
Any healthy male of 20 to 45 should be able to pass me.
When I pass a 20 year old, they don't like it.


After I started again last July with a regular 200km+ per week, the
weight seemed to just fall off
at about 1Kg per week for 2 months before the weight loss rate levelled
out somewhat,
and my body became more efficient with what it did with a given intake
of food calories.
I ate lots. But no chocolate and crap. Before last July I'd spent 6 mths
revising my website
about full time, and such activities are terrible to the width across
the arse.
I keep a graph going for my weight in the evening and morning and
before/after each ride.
Of course the 6 mth exercize program has probably increased my muscle
mass
a guestimated 3 Kg, so the total fat loss is probably about 18kg, so
this is like removing 5 x 4Litre cans of oil from my physique.
During the first 2,000 km, a few spokes in the back wheel broke,
but since my weight is now nearly where I want it I have not broken a
spoke
for months, and the wheel concerned had done perhaps 30,000kms already.
I manage to ride up hills using only 1 gear lower than i used to when
44, ie,
48 x 18 instead of 48 x 16. The youngan's in the club would scamper past
me
on a 48 x 14....
I'm using Vittoria 28mm Randoneer tyres instead of the finer lighter
23mm clinchers that are supposed to give less drag but the web info I
have read indicates that
the tyre weight/type makes less than 1% of speed/difficulty difference
in my application,
and I am aheavy cyclist, so the tyre weight makes little difference. I
have had only
two punctures since July, and only after the rear tyre was worn down to
the red danger zone rubber,
and on town roads littered with broken glass after months of no rain to
keep the glass down.

I also swim rather more than I used to which assists recovery, 40 laps
of the 9M pool
I have is 360M, a nice little paddle before dinner while it cooks.

For this year when I turn 60 I want to try to get to the 40km Age
Standard for Time Trials.
Its a safe race to be in, and no elbowing and argy bargy of the
criteriums that the club has.
But even so, the local cycling clubs have got a new criterium track
devoted solely to criteriums at a nice spot
with a view overlooking the city and with a small grandstand, and with
very smooth wide hot-mix,
so perhaps i will take part.
Criteriums were never my forte; they suit mainly those good at
sprinting, and I cannot sprint
well even to save my life, but then the guys who like criteriums do so
because they do well
and are well suited, and they hate hills, and long distances, and its
here I am right on their wheel
and give them hell if I can.
I believe that fewer guys of my age than ever have retained their
youthful fitness or weight
they had at 30, so i should do OK if I re-join the local club
after this last layoff.

Meanwhile I enjoy the usual 4 hr ride around the town of what must be
about 80k to 100k
with a few nice hills included, there is no substitute for the 'big sky'
experience
of freedom, and the high from exercize, and the views on the way around
of the lakes and bush.
Dodging cars and the occasional other cyclist always keeps one alert;
not staying alert could cost
my life so easily.


Obligatory on-topic comment: That's a worse scam than rating audio gear
in "RMS watts" or "music watts".


We just need enough watts, and not more, or less....

Some want more, but don't need them, and they are welcome....

I need every watt I can lay my hands on when I am on the bike.

Australians purchased 1,200,000 bicycles in 2006.

When I go out for a ride, I see maybe 30 coming the other way, but
15 years ago maybe I see only 3...

Patrick Turner.

Andre Jute
The trouble with most people is not what they don't know, but what they
know for certain that isn't true. ---Mark Twain

  #13 (permalink)  
Old January 15th 07, 06:06 AM posted to rec.audio.tubes,uk.rec.audio
Ian Bell
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Posts: 77
Default Wow, one watt is really very little energy

Andre Jute wrote:You guys better stop eating
altogether or you'll have to be on your bikes eight hours a day.


Not necessary. 100W resting power of the human body represents 2.4kWHr a day
just doing nothing or 2064kCal. So if I eat 2000 calories a day I'll lose
weight without exercise. ;-)

Ian
  #14 (permalink)  
Old January 15th 07, 07:30 AM posted to rec.audio.tubes,uk.rec.audio
Eeyore
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Posts: 1,415
Default Wow, one watt!!!, and road cycling interista informatums.



Patrick Turner wrote:

Gee, who bothers with having a damned computer to tell us about our ride
when it is NOT needed or wanted?


I couldn't agree with you more Patrick.

Graham

  #15 (permalink)  
Old February 2nd 07, 10:23 PM posted to rec.audio.tubes,uk.rec.audio
Mikkel Breiler
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Posts: 31
Default Wow, one watt!!!, and road cycling interista informatums.

On Mon, 15 Jan 2007 06:03:33 GMT, Patrick Turner wrote:

Weight loss is all about running a "calorie deficit", something most ppl
are far too weak willed
to do after week 1, so they binge in week2, and end up fatter.


One could do what I just did. After spending time from 1997 to 2004 hardly ever doing
anything I started to cycle often. 3-5 times a week I'd go for a 3.2Km trip picking
up odd stuff from the recycling deposit for my audio collection. Sometimes sweating a
lot over just 5Kg extra on the bike. I was really out of shape. Then after 1.5 year I
stopped doing that mostly because it was not ok to pinch stuff any more due to
complaints.

After spending last year hardly cycling at all I then took a job as a mailman at a
new startup company. I started biking around on jan. 2nd 2007 and I cycle between 4
and 9hrs a day, while eating just 50% more lunch than I used to and staying off all
the unhealthy stuff I used to eat during the day, simply because I am no way near it
and far too busy to go and get any. I do not bike all the time rather I get on and
off the bike all the time.
Today about 30 days after I started my weight is about 4Kg down from 95Kg.
After my muscles have gotten used to the daily beating I will next change my food
intake type from unhealthy dinner to healthy dinner, but not until then.

When I started as a mailman I could hardly climb any hills with the bike filled with
mail, but now I find that I can do it until my muscles ache but I no longer get out
of breath that easily. Still I can stand losing about 20Kg perhaps a little more.
But building up muscles I have to account for the weight itself not meaning that
much, my muscles never were that big because I never used them much. I find that I
cannot do a large long distance at a fast pace but I no longer get out of breath when
doing such or climbing a hill with a lot of mail. That is the crucial difference for
me, I have to cary a large load and keep my energy up until the end of my round. And
then I might have to go out on another round to help someone else. So I only relax
when I finally get home, and after 10 minutes in my comfy chair my spine, arse, knees
and muscales all start to ache. It feels like I simply ignore the pain after 3 hrs on
the bike. It is always the first 3 hrs that are the hardest every morning. I seem to
be telling my body to stop whining and keep moving. Of course as the biking is paying
the bills I got an enoumous incitament to keep doing this past that first week of
torture...

And its remarkable how so many folks give all sorts of excuses for not
losing weight.


Currently I enjoy 3 perhaps 4 hrs at home after work where I try to relax as much as
possible, going from almost no physical strees to a job that sometimes demands 9hrs
of cycling and hard work 5 days a week really isn't easy. When I get home I have
absolutely no energy left, which is why I do not spend a lot of time on dinner. Whe
nI get up in the morning I really wish I had the option of another job, I am still
tired after showring, eating breakfast and even biking through the cold winter air to
get to work. So I am not stuffing myself with a lot of food, and that is probably
good. The idea for me is to lose weight and get into shape, not compensate for hard
work by eating even more unhealthy food.

But this I understand, having spent time being UNABLE to use the main
power producing
muscles, those behind your femurs connecting the arse bone to knee
bones.
I was on the hospital waiting list for titanium knees, and it looks like
I can go somewhat
further on my own before accepting the invasive surgery option to make
life more doable.
I was even on Celebrex and Vioox for the knee pain and this **** from
the drug company
has killed quite a few ppl with heart attacks and the company is being
sued for millions and the drugs are now banned for sale.
I am lucky to have escaped injury from the drug side effects, but
probably they
promoted weight gain, since so many drugs do this.


Most people do not use their brain and simply choose drugs to fight issues that
proper use of their body would keep them from developing at early age.

Now days I am doing less distance at a lower average speed; whatever it
is I don't exactly know,
and don't need to know, I am passing most cyclists rather than being
passed by them as I ride around this town's
hundreds of kilometres of cycle paths and low traffic density roads.


I do not worry about being passed by people on a racing bike when I doing my rounds.
They are not carrying a maximum of 90Kg of mail on a large mail bike. What I do care
about is being quicker than the mailmen of the competing company whenever we're on
the same street. Sometimes it just has to do with me being at the start of my round
and they being on the end of theirs when we pull up side by side and try to get to
the end of the street before the other.


  #16 (permalink)  
Old February 5th 07, 08:46 AM posted to rec.audio.tubes,uk.rec.audio
tony sayer
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Posts: 2,042
Default Wow, one watt!!!, and road cycling interista informatums.

I do not worry about being passed by people on a racing bike when I doing my
rounds.
They are not carrying a maximum of 90Kg of mail on a large mail bike. What I do
care
about is being quicker than the mailmen of the competing company whenever we're
on
the same street. Sometimes it just has to do with me being at the start of my
round
and they being on the end of theirs when we pull up side by side and try to get
to
the end of the street before the other.



We're bloody lucky if the mail is delivered at all.. and to the right
address is a luxury!..!....
--
Tony Sayer

 




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