Why is it EASIER TO TEAR A WET PAPER than a dry one?GREAT QUESTION! Just give it a serious try!!!!!!!!!!!!!!!!
84636
Tearing a paper involves overcoming the cohesive force between the cellulose fibres (of which paper is made). In the case of dry paper this force is high and hence tearing it is not very easy. However, the cohesive force that is of electrostatic origin becomes weakened in the presence of water.\n\nThis is akin to the way table salt (sodium chloride) dissolves in water due the weakening of the electrostatic attraction between the positively and negatively charged ions. In the case of paper, the effect becomes easily perceptible as paper is hydrophilic and absorbs water.\n\nOnce dipped in water, the water molecules can easily flow into the spaces between the fibres, weakening the cohesive force between them and making them susceptible to easy tearing.
321400
I just recently moved into a house that is the "elderly" wall paper universe... I feel your pain.  Providing that it is actual wall PAPER rather than vinyl (vinyl just peels off no matter how old it is), I found the easiest thing to do was to take a good quality paper towel, wet the heck out of it, and stick it to the wall for 5-10 minutes.  Come back, grab an edge of the paper, and peel away.  Alot of people are fans of using a scorer, but that just makes a ton of little pieces, instead of ripping a good size amount at a time.  There are lots of chemicals they sell to peel wall paper, but I found the cost effective road was the best for me.  Good luck, and please let me know if you find anything better.
887791
Well, how can we guide you better than this guide does?  So, you have to revise your paper, and how can we help you without having your paper to examine, to see where you went astray?  Did your teacher mark your paper in this and that spot, pointing out where you slipped up?  Are there any comments that were made in writing on the paper or verbally?\n\nI don't see how you can get any significant help with this from what you have posted...we don't even know what the subject of the paper is.
48322
Getting the objective lens wet is usually not a problem - especially if you take the trouble to clean it with a special lens-cleaning tissue.\n\nMany things you look at through a microscope are wet preparations, that is the specimen is mounted in a drop of water or stain (to make certain structures visible). The cover slip holds the liquid in place and stops the liquid from evaporating too quickly. Evaporation can be quite quick because of the heat from the illuminating lights.\nWet preparations are esential if you want to view living tissue or water creatures.\n\nA dry mount is usually a dead specimen mounted in a special glue which also sticks a cover slip in place. The cover slip in this case serves to protect the specimen since these slides are usually made for collections.\n\nIn my experience the cover slip can help to protect the specimen in wet preparations when an inexperienced user rams the objective lens down onto the specimen!
856161
By unit volume, probably dry cement is heavier. Why? Because rocks are heavier than water.
1042327
The roller-grabby thing keep grabbing two sheets of paper and then jams up.  To make matters worse, it makes a beeping noise.  When I take the paper out and try to print again, the madness starts all over.\n\nThe good folks a Hewlett Packard have my thanks.
1113264
it could be paranoia. I tear mine becuase i read somewhere that the ripping of paper is calming. And if you focus on the sound, it truly is.
1169328
I tried and tried to open it but I couldn't find the end to pick at and peel away.\n\nSo I did as you asked and didn't open it............ I just had a sneaky peek at what was inside but technically it is still sealed!!!
1176681
it's a feed wheel / paper issue. Try paper thats glossy, paper that's not glossy, paper thats light weight (20-24 pound) or paper thats heavier (28-32 pound). if none of these work clean the feed wheels with alcohol and allow to dry for 10 seconds. fan the paper very well, and even slope the stack to favor the side it pulls from (top or bottom). if all this fails, return that bad boy TODAY !
456318
I highly recommend Wet.  If you are using latex condoms (highly recommended), then make sure it is water-based.
889035
with a ... dry cloth ?
808868
Sandpaper rough    course  harsh abrasive different guages of courseness,  Air would not have a problem passing over them however could take longer to travel over sandpaper,\ncling film smooth in comparison. and air would travel unhindered.
147077
That's a very interesting question (and boiling as mentioned by other posters is only part of the story).  Let's take evaportaion of water from a bath towel in a shower room as an example.  When you "dry" yourself with a fresh towel it gets wettter while you get dryer.  But the towel can not make you totally dry.  It easily removes the beads of water and excess layers of water but leaves you with a final surface film of water that can not be removed by the towel.  This water film must evaporate.\n\nIn the towel itself, water molecules (H2O) absorb energy from the air by collision with numerous air molecules.  Some of the molecules gain enough energy to vibrate and separate from the rest of the water and enter the air to join any present water vapor.  At this point, water molecules can leave and re-enter the towel's moisture and the net gain or loss of water will depend on the relative humidity in the room.  At 100% relative humidity the towel will theoretically never "dry" unless condensation is being removed somewhere from the room.  At zero relative humidity, the towel dries very quilckly because there are a lot of molecules trying to escape but few trying to return.  High temperature, especially at low humidity, can speed up the process by supplying more energy to the water molecules in the towel.\n\nIf the towel is folded, moisture will evaporate from one fold and re-enter another fold slowing up the enttire process.  The more you expose surface area the faster the towel will dry (and the less time there will be for bacteria to grow!).\n\nIn a glass jar of canned tomatoes, water molecules are constantly evaporating from the liquid surface and re-entering it at the same rate without any net change.  The jar is under a partial vacuum because air was excluded and the trapped vapor is saturated with moisture to the same extent air would be saturated with moisture at the same temperature because the exchange of water molecules occurs due to its own energy levels (perhaps supplied by collisions with air molecules) but not influenced by any interference by the air molecules.\n\nWhen water (or sweat or gasoline, etc.) evaporates from your skin, it feels cool because it is taking energy from your skin to evaporate, taking the latent heat of vaporization which is significant.
40029
I was wondering about this earlier today.  I think we're stuck with paper for quite a while since it's so cheap, but it's conceivable that we would eliminate it relatively soon.  Personally, I really like the idea of having something tangible in my hands with real pages that I can turn.  I was reading some Shakespeare today and I thought, "Wow, if I had a palm pilot, I could just download the text to it and I wouldn't have to waste paper or latch myself to my computer."  So what if one day we all went around carrying big sheets of plastic folded up like newspapers and whatever we wanted to read we could download to them?  Scientists are working on creating cheap, thin, clear "screens", so it's not entirely science fiction.  Paper will probably be around for a long time, but I think it would be interesting to look up whether paper waste has gone down even in recent years just with the popularization of the internet.
381050
My son and I worked on the papertowel comparison test. I am no longer allowed to buy anything but Viva papertowels, LOL! The most interesting project was the Coke test. The test shows how Coke eats away at metal (coins and nails). I have included a web page that is a very good site to go to learn more.\nhttp://www.howstuffworks.com/index.htm
175655
Try stuffing loosely with wet newspaper and then soak in water overnight...let them dry out naturally - worth a try..
635830
Writers dipped their pens in ink so when they wrote there was often a puddle of ink on the paper that would take a long time to dry.  The sand was sprinkled on the ink so as to soak up the excess, and then was shaken off.  Writing was a slow complicated process back then.