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Pete

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Pete last won the day on March 14 2013

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About Pete

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    Transitions Legend!
  • Birthday 21/12/62

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  • Location
    Melbourne

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  • Year of first Tri race?
    1993
  1. Backward Bike

    Interesting stuff. Shows how repetition programs in the process/pathways (whatever you want to call it) and enables complex automatic movements. I suppose the analogy here might be unlearning and relearning swim technique maybe..? Lap after lap after lap after..... On another note, the forcing of new learning is supposed to be (yet) another thing we can do for brain health as we form new pathways as a result. By coincidence I've just been given an old guitar that just happens to be strung left handed. Makes my brain hurt doing even simply chords, but maybe that hurt is doing me good?
  2. Bitcoin - someone explain it to me

    This article from Mother Jones might give some idea of the magnitude of power (electrical and computing) required to mine bitcoin these days - so much it's become an environmental worry.... "...No one may be using Bitcoin, but we’re all paying for them. Bitcoin analyst Alex de Vries, otherwise known as the Digiconomist, reports that the coin’s surge caused its estimated annual energy consumption to increase from 25 terawatt hours in early November to 30 TWh last week—a figure, wrote Vox’s Umair Irfan, “on par with the energy use of the entire country of Morocco, more than 19 European countries, and roughly 0.7 percent of total energy demand in the United States, equal to 2.8 million U.S. households.” (As of Monday, the figure had reached nearly 32 KWh.) Just one transaction can use as much energy as an entire household does in a week, and there are about 300,000 transactions every day. That energy demand is more often than not met through fossil fuel energy sources, which, along with polluting air and water, emit greenhouse gases that cause climate change. In other words, Bitcoins are contributing to the warming of the atmosphere without providing a significant public benefit in return. Some Bitcoin enthusiasts claim that it will eventually become a mainstream currency, and that the cryptogovernance system upon which it’s built could actually help the environment. But the Bitcoin market is volatile, its future murky. We only have 32 years left for carbon emissions to peak and then rapidly decrease, if our planet is to remain livable. We don’t have time or resources to waste on Bitcoin."
  3. What gets on my quince....

    While you're at it, throw in you're, your, yaw and yore
  4. Bitcoin - someone explain it to me

    FYI bitcoin now at AUD $15,900 - rocketing away from its start of the year price of around $1,000. Time to mortgage your house for bitcoin as it rises towards $1 million in 2020 as predicted by eclectic personality John McAfee or simply sit back and wait for the bubble to burst...... (I bought my first bitcoin for around $300 - i wish I still had it!! :))
  5. L'Etape Australia

    Ha Ha - "Beach Road rider" has become an almost(?) derogatory term for riders whose sole training is a single 60 - 90 km flat ride in a bunch every weekend and mistake hills no bigger than your average overpass as "climbing". Buoyed by the voracity of their ego-inflating overtaking of newby training bunches they are ready for anything, anywhere, anytime. Just ask me, er, I mean them..... In any case, I am sure there is a "beach road" and beach road riders in NSW?
  6. L'Etape Australia

    The first 100ks are p1ss easy so don't get fooled into going on the rivet in some big rolling turns groups(especially if you are a fat unfit weekend warrior from beach road) after that it starts to get serious and you will need to have something left in the tank. Beloka is the way hardest short/sharp piece of climb you will find anywhere - many walk it and you will too unless you have a compact with a 28, but I would also consider a 32 for this little beastie.
  7. The pool thread

    OK I get it - that makes sense - I normally only do 4 hours a day for my filter - that makes a big difference. I just consulted Dr Google and it seems that 8 hours is more in line with most recommendations. Probably explains a few things! LOL Currently I am using the inverter for the solar heater pump only (steady 1kw motor) as I tended to use more power there (my pool itemp 26 degrees!! :)) but I have just decided to put both on now that I know I need to throw more kw-hours at the filter but I will need more panels if I want continuous power
  8. The pool thread

    How did you get those figures (~$400-500 less electricity per year than the old pump did) - for those savings, by my calcs, your old pump must have used around 7 to 8 kw hours a day. (4 kw-hours more than your new pump given a new pump draw of around 3 to 4 kw-hours) FWIW I reckon you could go off grid for about $2,500 to $3,000 probably not financially viable unless you include the indirect benefits/advantages.
  9. Power outages

    The average, normal, garden variety non-storage systems use Grid Tie inverters. These inverters synchronise (frequency, phase, voltage) to the grid power and then add to it. They CANNOT work on their own, ie if the power at the grid goes down then they stop working. They are meant to do that because of the numerous safety issues involved as well as other practicalities. The off grid inverter is a generator in its own right but you CANNOT connect them to your normal power grid as they do no synchronise - they are meant to work on their own. Trying to connect them may result in your own local spectacular fireworks display. But to get over this I created a simple switch-over box that uses one supply as a master and physically switches over to the other supply when the master goes down. Not rocket science, I am sure you could buy one somewhere pretty cheaply. So if the mains power is a master, it will happily run on that but if there is a black out there is an almost instantaneous switchover to the off-grid inverter and hence a UPS function.
  10. Power outages

    Mean while in Victoria they are creating a diesel generator farm in under 100 days. Very progressive....
  11. Power outages

    FYI Fridges are a difficult load for inverters for some reason, start current? Over rate by about double Anyway, I was waiting for you to inspect the client source code on my link and tell me what a sh1t programmer i was.... be brutal, I can take it
  12. Power outages

    You betcha! I have a hobby off-grid system I developed myself with 9.6 kw/h of storage (8 x 100AH deep cycle SLA batteries wired in series parallel for 24VDC) with a 240VAC pure sine inverter rated at 6 kwatt surge and 3 kwatt continuous. But, sadly, only around 1 kwatt of panels (to be doubled in the near future) I don't like running down my batts below about 40% so I could supply the house with a couple of kwatts at night for a couple of hours - probably double that during the day when charging. Unlike grid tie systems I cannot connect into the house wiring so I need to run extensions cords as a kind of separate power system. Currently using it only for the solar pool heater pump with a local controller logging to a web-based database so I can remote control, graph usage and stuff. This is a simple display See here (using an esp8266 micro, html, JS, ajax, php, mySQL and a few other goodies) Aren't you glad you asked ! LOL
  13. Pushing hard enough on the bike

    I suppose I was thinking more IM type TTs where I would look at the normalised power and compare it to the average power and was planning to get these two numbers to be as close as possible and thus ensure I wasn't varying the efforts much at all. Even with a shorter race though, the numbers can give you a pretty good idea of where to target you efforts.
  14. Why not ask Ralph Waldo Emerson?
  15. Pushing hard enough on the bike

    FWIW I find that if you meter out your power correctly (best time) for a TT the actual effort (power) will be constant but the perceived effort will vary from "This is too easy" at the start, "Working pretty hard now" at the half way mark to "farrrrk this is killing me!!!" in the last bit. (as opposed to constant perceived effort and varying actual power out which always, for me at least, gives a worse overall performance) The constant effort should be your maximal average power curve rated to the expected time for the ride - for a 40k this will probably be your FTP. I think.
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