You are completely wrong. Surface tension is a very weak force in comparison to displacement. Last time I checked grain was less dense than water and oil definitely is.An oil/grain tankers hull isn’t full of air!
I think it’s the surface tension of the water and displacement of ships hull that keeps it afloat when it’s made of a material more dense than the liquid it’s floating on.
Could be wrong though.
Rollers on country lanes
- Thread starter styler
- Start date
- Location
- North West
The irony of this is that floating concrete has nothing to do with rollers going down the road and was said in jest!
I didn’t want to start a physics lessons on displacement and bouyancy
But
I thought buoyancy tanks where to enable a ship to take on water and stop it rising up to much that it becomes top heavy when it’s unload. I’m no expert though.
“and the displacement of a ships hull”
Which bit of “displacement” was I wrong about? I’m sure it’s spelt correctly
Ps. last time I checked grain and oil are much more dense than air!
I didn’t want to start a physics lessons on displacement and bouyancy
But
I thought buoyancy tanks where to enable a ship to take on water and stop it rising up to much that it becomes top heavy when it’s unload. I’m no expert though.
To quote myself
“and the displacement of a ships hull”
Which bit of “displacement” was I wrong about? I’m sure it’s spelt correctly
Ps. last time I checked grain and oil are much more dense than air!
- Location
- Darlington
We're drifting dangerously off topic and if someone pulls the plug. We'll sink without a trace.The irony of this is that floating concrete has nothing to do with rollers going down the road and was said in jest!
I didn’t want to start a physics lessons on displacement and bouyancy
But
I thought buoyancy tanks where to enable a ship to take on water and stop it rising up to much that it becomes top heavy when it’s unload. I’m no expert though.
To quote myself
“and the displacement of a ships hull”
Which bit of “displacement” was I wrong about? I’m sure it’s spelt correctly
The OP IMO asked a genuine question and hopefully we haven't frightened them from ever asking anything again.
Are you near a quarry, or near a forestry commission wood where they could've been blasting material for a road?
They blast over the hill from me at the quarry and also on the hill above here for forestry road material. That fairly shakes the buildings.
They blast over the hill from me at the quarry and also on the hill above here for forestry road material. That fairly shakes the buildings.
Courier
Member
- Location
- M62 - M1 - M18 triangle
More dense than air yes, but the ship will be floating on WATER [emoji6]
- Location
- Limousin/Charentes toad land
The attitude of some of you is absolutely shocking and oh so high and mighty. What a great advert to the industry when a normal bloke takes the time to join the forum to ask a question and he gets the 'oh but who do you think feeds you' 'it's the countryside deal with it' rubbish. This industry can be a joke at times.
- Location
- Scottish Highlands
What staggers me is that no one has suggested the OP simply lift the phone and speak to the council roads department! They care about their road surfaces and if anything untoward is going on they would probably like to know about it.
A building surveyor would be he best person to consult about cracking and things falling off walls. The OP did get a structural survey done before he bought the house three years ago, didn't he? If he missed something, sue him! They all carry professional indemnity insurance for exactly that reason.
If the OP doesn't like the flack he is getting, probably best not to jump to conclusions and point the finger on a farming forum, which is exactly what he is doing. Nobody likes being accused without evidence, however it is done.
A building surveyor would be he best person to consult about cracking and things falling off walls. The OP did get a structural survey done before he bought the house three years ago, didn't he? If he missed something, sue him! They all carry professional indemnity insurance for exactly that reason.
If the OP doesn't like the flack he is getting, probably best not to jump to conclusions and point the finger on a farming forum, which is exactly what he is doing. Nobody likes being accused without evidence, however it is done.
Tarw Coch
Member
- Location
- Bottom of Wats Dyke
Probably too late now but it's not that difficult to see if a roller has been down a country lane, there's usually a bit of dirt/chippings which can be seen flattened/squashed if you look, especially in the centre of theres a camber on the road where tyres are unlikely to travel.
- Location
- East Sussex
I know of a family that had similar trouble. It turns out that when they renewed the timbers In the floor they could see a large (massive) rock was supporting the floor in some way. This rock was so large it extended under the surface towards the unmade track past the house. I’m not sure of the exact outcome but I know they dug outside next to the house and cracked the rock to remove the connection to the structure of the house. Problem solved.
Grassman
Member
- Location
- Derbyshire
Probably an Ifor Williams trailer rattling past empty.
Grassman
Member
- Location
- Derbyshire
Seriously I would say a quadtrack type tractor or a tracked digger.
Even my mini digger on rubber tracks shakes badly on tarmac or concrete.
Even my mini digger on rubber tracks shakes badly on tarmac or concrete.
Irish NZ
Member
- Location
- The mighty Waikato NZ
Doubt you've ever experienced an earthquake...Hi,
Non-farm worker here so please go easy - just after a bit of info if anyone could help me.
I live on a relatively quiet country lane which acts as a thru-road leading to several of the local farms. The only traffic we get is the local residents commuting, some school run traffic and agricultural vehicles. It's a narrow lane which is getting used more and more of late by the much heavier agri contractor vehicles.
So yesterday mid-afternoon we heard and felt a rumble from further down the lane getting louder and more severe, 20 seconds later it passed and our entire house was shaking to such a degree that it felt like an earthquake, no exaggeration. We felt the ground physically oscillating and sound reverberating as it approached and went, the house itself was shaking. Like I say we get a fair amount of heavy traffic - tractors, tankers etc go past all the time and we rarely notice them.
My missus thinks it might have been a heavy tractor driving with it's hydraulic rollers still down on the floor which would make sense as the noise and physical resonance feedback was like nothing we've felt in the 3 years we've been here. Not noticed this before but we work away from home so it might be a once or twice-yearly thing and we just happened to be in on this occasion.
Does anyone know if this is common practice, or even legal? We have cracks through the render of the house which I'm now thinking may be being caused by this. Also our toilet cistern spontaneously cracked last year and we woke up at 5am one morning to an internal waterfall through the bathroom floor into the room below. This cistern was screwed to the wall facing the road (about 5 metres away) so we need to figure out if this is linked.
The structure (and possibly foundations) of our house may be getting affected by someone (probably a contractor?) who's driving about with the rolls down. Presumably these vehicles should be lifting the rolls when driving on public roads.
Any thoughts on this? Are these hydraulic rollers meant to be lifted between fields? My guess is yes, but I don't want to make any assumptions. Cheers
renewablejohn
Member
- Location
- lancs
Always makes me laugh when I go to the Natural History museum in London where they have an earthquake simulator to experience what it may feel like. Only problem with it is trying to get on it due to it being packed with Japenese looking tourists.
No it wont, it will be floating in the water untill displacement equals it weight
I have a set of tandem water filled ballast rollers they are made of gas pipe and bloody heavy
had someone ring me after I went past their house at about 5 mph they said it was making things shake etc, not an incomer by the way but another farmer, it seems it can happen
go very slow past houses now
had someone ring me after I went past their house at about 5 mph they said it was making things shake etc, not an incomer by the way but another farmer, it seems it can happen
go very slow past houses now
ridger
Member
- Location
- Tyrone, Northern Ireland
Is the cistern the bit that holds the water to flush with that had the handle on it?