Q:Are plastic tubes resistant to UV light?

Yes, plastic tubes can be resistant to UV light depending on their composition and manufacturing process. Some plastic materials, such as PVC or acrylic, can be inherently UV resistant, while others may require the addition of UV stabilizers during production to enhance their resistance. It is important to check the specific type of plastic tube and its intended use to determine its level of UV resistance.

Q:instead of using ridgid conduit can polytubing or irrigation vinil pipe be used as an option or cable can just run bare on concret on a house been build up of concret wall in and out ?

In my years of experience, and inspector will fail that in a heartbeat. The Irrigation tubing is not made to run wires through, and the wire could get caught on the tubing , and the wire could dig into the tubing as it is soft and pliable. Also, when you pour your concrete on top of the tubing, the tubing will flatten with the weight of the concrete, causing you to have to remove the concrete to make any repairs to the wire. Defeating the purpose of using conduit in the first place. Use the gray PVC non-metallic conduit, the fittings and the pipe are designed to have wires run through them, and the conduit will not crush under the weight of the concrete poured over it. If you are going to do the job, do it right, and you will save money in the long run.

Q:I went to buy a plastic water bottle that has a tube inside that you frezee, and keeps the water cold they don't have anymore they sold like hot bread. I been looking everywher, and only found a place Alibaba that sells them wholesale only. A Hello kitty in OKorder which is not the one I want . If anybody knows wher I can buy i will appreciate a link or name of the place.

You can keep water cold without having to use the frozen tube. Just buy a double wall insulated bottle and that should do the trick. If you want an extra layer of insulation, you can always add on an insulation sleeve too.

Q:Can plastic tubes be used for gas lines?

Yes, plastic tubes can be used for gas lines.

Q:Can plastic tubes be used for hydroponic systems?

Yes, plastic tubes can be used for hydroponic systems. Plastic tubes are commonly used as channels or conduits to transport nutrient-rich water to the plants' roots in hydroponic systems. They are lightweight, durable, and resistant to water, making them a suitable choice for this purpose.

Q:what is dialysis tubing? how can it be used to demonstrate osmosis?

Dialysis tubing is actually a semi-permeable membrane when used in water. Experiments illustrating osmosis and pressure gradients across a membrane use dialysis tubing. This tubing usually comes in rolls and when wet, will open up into a cylindrical tube that can be tied off at the ends. The tubing can also be fitted over a thistle tube for such experiments. Dialysis tubing is literally a semi-permeable sheet of plastic. [Like a cell membrane, it can allow certain things in, but not everything.] In a dialysis tubing experiment, one fills the inside of the sheet with a concentrated liquid of some sort and then seals off the open ends of the tube. Then, one places the tube and liquid into another type of liquid and after awhile, the liquid from the outside moves inside the tube. What I did for my first dialysis tubing experiment was filling the inside of the tube with a concentrated starch solution and placed the tubing into a beaker of Lugol's solution diluted with distilled water. After a 1/2 hr, some of the Lugol's and distilled water will have entered the dialysis tubing. One can see that osmosis has happened because the Lugol's in the tube would have turned blue when in contact with the starch. Osmosis caused the diluted/unconcentrated solution of Lugol's and dH2O to go through the semi permeable membrane and into the concentrated solution of starch. Like a cell's membrane, if the outside of the cell is more concentrated, the cell would lose water because the the water will leave the cell and go for the concentrated outside environment. If the inside of the cell was more concentrated than the outside, the outside water will go into the cell through the semipermeable membrane.

Q:Why should the residential outdoor drainage pipe be preferential for underground drainage plastic pipes? What's the harm of using precast concrete pipes?

The buried plastic drain pipe has many excellent performances compared with the precast concrete pipe. The plastic pipe has the advantages of light weight, large length, less joint, convenient laying, reliable sealing, no leakage, and less pollution to the underground water source. In addition, the utility model has the advantages of high impact resistance, corrosion resistance, acid and alkali resistance, long service life, etc..

Q:I'm a 14 year old guy. Since I was about 8, I've carried around in my pockets little 'facsimiles' of things around me. If I watch a TV show view a website, or even walk down the street, I have to handle them and imagine they're objects that I see. For example, if I see a train on TV, I remove a little 1cm by 4cm piece of mousepad from my pocket and mentally substitute it for the floor of one of the train cars. I've gone through clothing tags, cut-up business cards, et cetera for 4 years. It's the same for tubes; I use a pencil grip for pipes, airplanes, or even people's limbs. It any of this a recognized psychological condition?

Hey, BrightShadow, DONT use the N word. its rude... and disgusting. (obsessive compulsive disorder) Many people with OCD Feel compelled to touch touch things over and over. People with Synesthesia have the different sensory sections of their brains cross-wired some people think its scarry, like a permenant acid-trip or something... but.... colors have taste. sounds have color. sounds have taste. music can be sweet. someones name can taste awful. bread can taste purple. EVERYONE is born this way, and it speeds the learning process in infants, but most of these neural connections break down in the first few weeks or month outside the womb. Perhaps a when you see something, your brain is not satisfied just looking, and craves input from your other senses to complete the picture. Its not a flaw, it's hunger for input (ask Johnny 5) Does it seem to be a compulsion that makes you want more input? or is it that you feel you perceive it better with more than one sense in use at a time?

Q:Can plastic tubes be used for insulation in construction?

Yes, plastic tubes can be used for insulation in construction. Plastic tubes, particularly those made from materials like polyethylene or PVC, are commonly used as insulation for pipes, electrical wires, and HVAC systems in construction projects. These tubes have good insulating properties, are lightweight, and are resistant to moisture, making them an ideal choice for insulating various components in buildings.

Q:Can plastic tubes be used for hydraulic systems?

Yes, plastic tubes can be used for hydraulic systems. However, it is important to consider the specific requirements of the hydraulic system and choose a plastic material that is compatible with the type of fluid being used and can withstand the pressure and temperature conditions.