SteamyTea

Gardens Question Time is coming from there soon.

That is why reticulated foam is used, it is more like a fishtank filter material than a cushion.

I have always been pleasantly surprised with Parkside kit. Price is no marker of quality these days.

Yes. Usually into my crotch.

How to build a sonic crystal 1 March 2011 What you’ll need: poles or tubes, a saw, measuring tape, a drill, a hammer, nails, two planks of wood (one as a base plate and another as a top plate) 1. Collect poles or tubes (almost any type of pole can be used – metal, plastic or wood, hollow or solid) and decide on the range of frequencies you want to block. The wider the tubes, the broader the range of frequencies the crystal can stop. The pole separation also affects the frequencies you can block so you may want to calculate this now: Pole separation (a) = speed of sound in air /(2*frequency). 2. Cut the poles into pieces of equal length. To be most effective, the poles should be a long as possible. The crystal should be at least five poles deep to be effective. 3. Mark out a grid on your base plate to show the position of the poles by using the pole separation equation given above. For example if you want to attenuate low frequencies around 440Hz (this is the frequency of the note A above middle C in the musical scale) you should use cylinders separated by a distance of 39cm and the diameter of each cylinder will need to be 26cm. This structure will be very large! 4. Attach the poles to the base plate. If you’re using solid poles, the simplest option is to nail them to the plate from behind. Depending on the poles you’re using, you may also want to use glue or screws. 5. If the poles are unstable, add a top plate to keep the structure rigid. 6. The best way to test the crystal is with a sound at a single frequency. To create a test tone, you can use a tone generator (like this one available free online) to create a sound file with a specific frequency and duration. Upload this tone to your cellphone. 7. Position your cellphone on one side of the crystal in the centre of the array, roughly 30 cm away from the poles. Play the tone and listen for it on the opposite side of the crystal. You’ll know your structure is effective if the sound is muted.

Next time, bend your head down, look at the ground and blink a lot. It gets the dust out. If it really hurts, then maybe a trip to the cottage hospital.

Are you serious? It is because your house has cooled down. So you are going to reduce the water volume of the system, so where is the buffer tank going to go. You would be better off suggesting that you will put more radiators in, and never, ever, turn them off. So your Mother does not know what the steering wheel does, or the pedals, indicators, headlights. No wonder the Welsh roads are the most dangerous in the country.

We used to make acoustic hoods for noisy machines. If I remember correctly, the inside, the noisy side, was 30% open sheet (just loads of 40mm holes. Then 50mm of reticulated acoustic foam, not that dense. Then the composite outer cover, which was just a 1300 g/m² grp layup.

Mine to. Where does @Oxbow16 live. Could turn up with my scaffold tower if local. Then I can film it from a good angle.

You need a spare hand to grab the window cill when you get thrown off the wobbly step ladder.

2000W, that is a beast. Could cut up a car with that I n 10 minutes.

The wattage will increase the torque for any given RPM. The size of the cutting disk will have a maximum RPM. This is why larger, more powerful, angle grinders can often have a lower RPM. Pi x diameter x RPM gives you the equivalent linear cutting speed. I prefer toggle switches, and a speed controller. Can't think that I have seen both together in recent years, so go toggle switch if you don't have a choice. Once switched on, you can use use both hands on the grinder to control it. Or one handed if needed. Really try not to over think it too much. Sooner or later you will need to just switch it on and plunge that disk into the wall. It is not the backwards and forwards motion that will catch you out, more twisting the cutter in a slot, that is when it jambs up. If you can, try cutting up an old brick, concrete slab or large stone, get a feel for it.

Just get some cheap 125mm diameter ones. They will do the job just fine. Make sure whichever angle grinder you get has the larger spindle. My little one is only 10mm diameter, that limits the size of disks that can be fitted.

You are on a website that if full of advice and examples. Try reading though it.

I had a girlfriend with similar personality traits. Started out as simple misery, then moved to anger, then desperation and finally, after being dropped form the social circle, coercive control. She then went on to try her usually tricks, basically 'I don't understand, no one will help, It does not work, everyone hates me' at work and her first marriage. She now lives in the same village as one of our inactive members and causes trouble in the village. Good luck getting it sorted, and I will look forward to the next instalment, they always brighten up my day.

They have been reading your posts. Companies have software and people people to monitor the interweb for negative comments. They may have been tipped off as well. You have been given advice, and yet again, you refuse to take it on board, and even fail to do your own research. Then get narky with the people that genuinely try to help.

What is the calorific value and associated pollutants (note plural).

@TonyT I am still amazed that you have turned one one. Is there a reason the hall is cold? Where in the country are you? Was the usage half of what is was night before last?

One of my old regular customers wrote these.

Yes, and every other county. 4 million of you do it every year. Your dogs can shit on the beaches as well, in fact, it is compulsory, council encourages it. Unlike Paris, you can hire electric bikes and scooters, just make sure you ignore the cycle lanes and use the footpaths, and go up one way streets the wrong way. But the most important thing to remember is when you cross the Tamar, you have to make up your own Highway Code. The national one does not apply anymore. Just make sure it is unique, so absolutely no one knows what you are going to do next, be it stop suddenly, react to a signpost totally inappropriately, and my favourite, block the outside lane of a dual carriageway and leave a mile of clear road in front of you. (I use the term 'You' generically for (expletive deleted)ing (expletive deleted) emmets)

Does it begin with C

I think there was storage heaters and some of us spent ages pointing out what Zoot was stopping them from working. may have been at his parents house.

I thought it was sorted out ages ago that the billing has to stay the same. Same times that there cannot be preferential offers for smart meters only. The problem is the call handlers have not been told otherwise, so they believe they can only offer what is on their crib sheets.

` +-+07-0. Whoops, that was me drying the keyboard after spilling some tea on it.

I wish I had learnt them. I missed one lecture at university, it was the one on sound waves. https://en.wikipedia.org/wiki/Wave_equation