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  • Talk Rational: Creepy Fixations

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Dave's mind is utterly closed to anything outside his own eccentric beliefs, whether it is a global flood, age of the earth, or living entirely on animal-produced foods. It's pointless to do his research for him, and pointless to try to explain to him that his personal prejudices don't reflect the reality of the rest of humanity.

His idea of the 'backbreaking labour' involved in growing vegetable crops is so exaggerated as to leave one with nothing to say, because how do you even begin to explain simple concepts that he doesn't want to hear? That even for the backyard gardener there are plenty of mechanical tools that make various tasks easy, that commercial vegetable farmers, even on a relatively small scale, rarely have to so much as get out of the climate controlled cab of their machines. He doesn't get that for much of the year vegetable growers have no garden related work to speak of, and that a couple days of actual physical work per week, or per every couple weeks, depending on how diligent you want to be, is plenty of time to raise a garden to feed yourself and your family all winter.

He doesn't get that modern home gardens can be no-till, can use cover crops, can use mulches for weed control, can be rotational, and much less work than he seems able or willing to imagine or research.

Quote
Basically you get a one cubic meter pile of materials consisting of roughly 2 parts brown material and one part green material.  After 18 days of backbreaking work, you will have some finished compost. I'm not sure how much you will have but certainly not one cubic meter.  If it says in this article, I missed it but perhaps you have 1/3 of a m³.  A good vegetable gardener friend of mine mixes 1/3 compost with 1/3 vermiculite and 1/3 peat for his garden beds.  He uses 4' x 8' garden beds and plants one seed potato per square foot.  So the finished compost produced from our one cubic meter pile would be just about right for our 4 x 8 garden bed.  Let's assume that we get five decent size potatoes per square foot and that comes out to 1000 food calories per square foot.  So our one cubic meter of  Green and brown materials plus 18 days of backbreaking labor plus vermiculite plus peat moss plus planting labor plus harvesting labor plus watering and weeding and everything else produces 32,000 food calories. - Dave H

If this 'friend' only manages to get 5 potatos per plant it doesn't matter how anal he is about his compost; he's doing something wrong.

There's no need to be so nuts about composting. You don't need vermiculite and peat. you don't need to carefully calculate 'green and brown', that happens pretty (haha) organically and can be an ongoing natural thought process regarding what you know you will have available. You don't need to do 'backbreaking work' to have a successful compost heap, like what the hell. You don't even need a containing framework, it just looks neater. You can just pile up your plant-waste organics in a sunny spot and spend ten minutes to toss the pile with a pitchfork once a week. It'll take more days than 18 likely to get to usable compost stage, but who cares, what is your hurry?

My parents place was on the side of a valley, and there was low wall across from the kitchen door, with a steep drop behind it down to the old stable yard.  They had the compost heap there, so when you'd finished peeling the veg, you took the colander and tipped it over the wall.  The shed next to the heap had the mower in it, so my father would just empty the grass cuttings into it before he put the mower away.  We put dead leaves on it in autumn, and kept some in a pile to shovel on occasionally through the summer.  My father grew amazing veg.  I don't think they ever bought veg.  They had blackcurrant and gooseberry bushes as well  - very productive.   And an amazing plum tree with a swing.
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Yep, none of whom realize how insane they all sound at this point.
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Science / Re: Direct Down Wind Faster Than The Wind
Last post by F X -
And of course it wouldn't matter if you did.  If your camera took 1000 fps at 12 Mpix/frame, we'd learn that it has to be higher resolution and higher frame rate.
That is so actually true it made me laugh
4
Yes I know you don't claim to have a world saving plan. And that's fine. Not everyone is as ambitious  delusional  as I am.
fyp.

News Flash: 
You don't have a world saving plan, either.
no. But he has a world saving dream, and that's nice to have on those cold winter night with only lactating goats for company.
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Science / Re: Direct Down Wind Faster Than The Wind
Last post by spork -
Actually Heinz, I don't own a HFR video camera...

And of course it wouldn't matter if you did.  If your camera took 1000 fps at 12 Mpix/frame, we'd learn that it has to be higher resolution and higher frame rate.
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Yes I know you don't claim to have a world saving plan. And that's fine. Not everyone is as ambitious  delusional  as I am.
fyp.

News Flash: 
You don't have a world saving plan, either.
7
Mafia / Re: Trump Mafia Day 5
Last post by borealis -
Yeah, sorry about that. Then again, neither are you. No one is unless they are dead.

Still going with LD I think.

Odd for diva to be alive this long. So if LD is not scum I dunno.
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Science / Re: Direct Down Wind Faster Than The Wind
Last post by tobermoryphil -
The Black Knight will never admit defeat!
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Science / Re: Direct Down Wind Faster Than The Wind
Last post by MikeB -
If it were to have continuous traction, it could never advance and P= FV is all you need to know to understand that.
Yes, your favourite equation.  Except that you don't even know how to apply it properly.

It does not have the implications that you want it to have.

Fuck you too. Look at a HFR video or stfu.
Hahaha, shut up yourself.  "no u" in other words.  :)


You have a cart and a treadmill and no excuse for not looking at a HFR video.

Oh, you have ONE excuse, you are scared shitless of what you will see.
Actually Heinz, I don't own a HFR video camera and don't need one because from the beginning of this saga (2008 for me) I have first been a doubter, then needed a simple proof that it would work.  After I saw a cart go ddwfttw on a treadmill, I realized the simple necessary calculation that was needed to show this could work, on a treadmill or on the road in a wind.

I have laid out this calculation for you several times, on the zombie forum and at least once here.  I think you have just ignored it.

It is this simple.  Say there is a steady wind over the ground at 10 mph.  A cart traveling with the wind, at wind speed, can apply some resisting force at the wheels and get an energy input to the wheels, axle and propshaft, extracted from the kinetic energy of the cart.  We can calculate that rate of energy extraction based on cart speed and resisting force, which is called power.

Very simply, for the cart to advance beyond wind speed, the propeller, experiencing nil wind, must produce a thrust greater than the resisting force at the wheels.  That is all that's needed, very simple, but at first I thought it was nonsense.  Realizing this situation calls for what is usually called a "static thrust:" calculation, or "propeller in nil wind" calculation, it didn't take long to determine that a realistic propeller could be made that would achieve this with the power available in the example I gave.  From that link I gave you, it can be seen that the magnitude of this thrust for a given shaft power is ultimately dependent on the propeller diameter, which I backed up with an example of how a helicopter could hover and lift heavy objects with the very large propeller (rotor blades) whereas Windgrins' fixed wing airplane, given the same power, could not hover or climb vertically hanging from the prop.

So you see, I was first a doubter, then realized exactly what was needed for this to work, did the power/thrust calculations using the Jeff Lewis formula and found it feasible. I witnessed the reality with my own cart and the Blackbird videos.  What I did not anticipate early on was the extent by which windspeed could be exceeded.

I completely dispute the notion of the wheels slipping or oscillating, I told you before that my cart originally had nylon wheels that tended to slip.  When a put weight on the cart over the drive wheels, performance immediately improved.  When I glued the rubber bands to the wheels, that weight was no longer needed and it ran smoothly and quietly.

JB also proved that the prop was the source of the thrust in one of the videos.  He replaced the prop with an equivalent sized dummy prop that had no thrust capability (no properly formed blades, just a wooden beam) but had the needed rotational moment of inertia.  The cart ceased to function at all regardless of belt speed, if I recall.

So there you go, you are washed up and hung out to dry.
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Mafia / Re: Trump Mafia Day 5
Last post by PeppermintButler -
So you and diva aren't cleared then, fucking great