Any question answered...

This is so good for dog hair and kid crap on hard floors instead of getting the hoover out for 60 seconds of work
https://www.amazon.co.uk/Kleeneze-KL065315EU-Electrostatic-Rubber-Squeegee/dp/B07WRDKHGS

Seconded. So much more effective than a vacuum cleaner on hard floors.

Also fact check this, but because they're silicone I'm pretty sure you can take the heads off and put them in the dishwasher to clean them.

What are the vax machines like?

Our baby one which we got on sale when they were first entering the UK domestic market did over 10yrs of service. Although it was getting weak towards the end, I think they are pretty well put together.

From my recent research I know you can get carbon filters for the Miele C3 to reduce pet odurs. I wonder if it's the same for other manufacturers.

Golf club -
I'll buy one and let my cleaner get to work with it.

(i have one in the back yard i've used for cleaning up (bad dog) - hearing i might be able to dishwasher it is good news)

BUT WAHT FOR THE CARPET AND THE SOFA?

(mini duo spot cleaner is winning)

I did kill my Miele when I attached it to an electric sander to sand a wall flat but a quick clean and a change of filters and it was fine again.

I killed a Mr.Henry at work by hoovering up a load of ballotini.
Nobody told me that Henry didn't have a bag.
The magic blue smoke was forthcoming.

What is the best way to repair a breathable fabric? It appears my knee pads have abraded a hole in my poc dungarees. Is there a good patch material and adhesive for this?

Good question! Do you think the pads will keep wearing away the waterproof fabric, and in the other knee? If so, you'll probably want to use a contact adhesive (like a shoe glue) to put a big patch of cordura in the area it's abrading. Not like your knees need to breathe.

If It's just a spot, send me your address, and I'll get some repair patches over.

Miele C3 Complete is current clubhouse leader. Don't have stairs, nor pets, flat is mostly carpets with hard floors in bathroom, toilet, and kitchen.

Going back to this, it is insane how much of this soft plastic I have recycled since starting to do save it from landfill.

I have recycled

you mean personally or just sorted into separate containers to be burned?

Oh you cynic!!!

Better than landfill, either way.

I have a Vax Blade 4 Pet and it's really powerful. It sucks up dog and cat hair really well. It does feel a bit cheap though. We've had it as long as we've had the dog, so about 3 years and nothing has gone wrong yet but I'd be surprised if it lasted another 3 years. I'd love to be wrong!

Why do some side extensions have a much higher front than the actual roof?

Ie from the front it will be squared off like the green line, but when you look from the side the roof is lower.

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Probably just for looks. Can’t think of any structural reason.

I was reading https://en.m.wikipedia.org/wiki/Centrifugal_force and found this in the intro:

Confusingly, the term has sometimes also been used for the reactive centrifugal force, a real frame-independent Newtonian force that exists as a reaction to a centripetal force.

Then this long-established article: https://en.m.wikipedia.org/wiki/Reactive_centrifugal_force :

In classical mechanics, a reactive centrifugal force forms part of an action–reaction pair with a centripetal force.
...
In accordance with Newton's first law of motion, an object moves in a straight line in the absence of a net force acting on the object. A curved path ensues when a force that is orthogonal to the object's motion acts on it; this force is often called a centripetal force, as it is directed toward the center of curvature of the path. Then in accordance with Newton's third law of motion, there will also be an equal and opposite force exerted by the object on some other object, and this reaction force is sometimes called a reactive centrifugal force, as it is directed in the opposite direction of the centripetal force.
...
Unlike the inertial force known as centrifugal force, which exists only in the rotating frame of reference, the reactive force is a real Newtonian force that is observed in any reference frame.

Is my brain creaking more than I thought, or is this just wrong? I don't get the jump from 'an object' to the key bit of Newton's third law, 'mutual actions of two bodies upon each other are always equal'. Neither do I understand the discussion on the talk page.

Edit: there are hundreds of pages elsewhere with claimed graduates arguing about this. I think it comes down to the authors fundamentally not getting what reference frames are, especially rotating (i.e. accelerating) ones.

I am guessing lining the inside with cordura is the better option

Where can I get patches of cordura and is there a particular brand of shoe glue to use? These are pictures of the inside and the outside of the knee.

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To stop the back neighbours at the end of the garden 2 metres away from peering in through the new skylights over the kitchen while you're making coffee naked

I thought the middle bit of the Wikipedia article was reasonably clear:

In the case of a ball held in circular motion by a string, the centripetal force is the force exerted by the string on the ball. The reactive centrifugal force on the other hand is the force the ball exerts on the string, placing it under tension.

IOW:

1. The second form of Newton's 3rd law is

   mutual actions of two bodies upon each other are always equal, and directed to contrary parts

2. The two bodies are the ball and the string

3. The centripetal force is the string pulling the ball towards the centre of rotation

4. The reactive force is the ball causing the tension in the string

5. Both of those are visible in an inertial reference frame, although the directions are constantly changing

Can these forces be used for pleasure?

The reactive force is the ball causing the tension in the string

I'm suspicious of this ball and string. If you cut the ball off, a physical string would still be taut. So I don't think we need the ball to demonstrate the behaviour, and so we can simplify the model to a single rotating rigid body, with mass and thus inertia. So the two bodies bit doesn't seem to be relevant.

I don't see any room for a centrifugal force in this model, it's just inertia. There doesn't need to be balanced forces at any point on the body, as it's all rotating and thus accelerating.

Edit: Going back to the original ball and string, I suspect that visualising a force transmitted through the string to the ball is implicitly constructing a non-inertial reference frame.

As in it's to do with sight lines? I've seen it on garages too.

It doesn't strike me as an aesthetic improvement, so wondered if it was some sort of planning trick.

I'd be tempted to use the adhesive backed patches.

But for the sort of quantities of cordura you're after ebay will be best. It'll be much easier to search for specific gsm, etc. too.