can any one tell me a)why egg on boiling become hard .?  b)why toe nail grow slower than finger nail?
439828
The proteins dont coagulate, they denature- The tertiary and secondary structure of proteins determine if they are soluble and liquid-Upon unfolding because of heat, they become insoluble, interact with each other, and form a single mass of loosely polymerized proteins.  Toenails DO grow slower, because of genetic control on the deposition of protein.  This is likely regulated by what evolution learned about the average time it takes to wear down the two in different situations.
234566
no toe nails grow at a slower rate
341403
Toenails' growth get stunted by our constant wearing of shoes, socks, stockings, etc.  It's even covered up with blankets and sheets when we sleep. It is therefore less exposed to sunlight and air which favor growth. Toenails are often moist with perspiration and when walking barefoot it's among the first parts of our body that gets exposed to dirt and germs. It can also be quite difficult to reach when bathing or cleaning our body parts. Because of its distance from our eyes and nose it is often left neglected.
735042
I'll address this as a formal type of trial, kind of give you the extremes first, and you'll need to tone it down to the level that you're looking to do.  \n\nFirst, and I'd say most importantly, you need to do this to much more than one egg.  What your teachers will be looking for is a stistically signifigant amount.  If you do one, your answer is 100% one way or the other, which isn't too helpful.  \n\nSecond, I would do each egg in "regular" water first.  Since, when they were boiled, they were already exposed to that type of water, there isn't much chance of them being contaminated in any way.  I would then make a chart something like this\n\nEgg #   |  Floated in norm...  |  Floated in salt...  \n   \n     1                        no                       yes\n\netc.\n\nYou'll want to, in some way, be able to compare these, so that you can quantify your results.  For example  "85% of the eggs tested were more boyant in salt water than in normal water..."  \n\nWays to improve\nThe only big thing I can think of here, with out changing this to a general which liquid is most bouyant, is be consistant.  Check and make sure that the water levels are close, you don't want 6 inches of salt water and only 4 of normal.  Check the temperature of the water, if one is hotter it will help its bouyancy.  Make sure to use the same mixture of salt to water each time, if you use more than one container.  And consider using bottled water, probably not necessary at all, but tap water has a lot of other stuff in it.  \n\nMost importantly, write down everything you do.  Say you checked the water temp.  Tell them that the ratio of salt to water was the same every time (and what it was).  The more details you give them, the more through you show yourself to be.  Have fun, maybe you can make egg salad after you're done!
41572
Okay,this information is real!The egg's shell will be partially dissolved and it soon be very soft.Try this to a bone,(any bone recommended chicken bone) and you will get the same results.(It will be so soft that you can tie it into a knot!)
619043
I'm assuming you mean boil an egg. \n\nAt sea level where the atmospheric pressure is 1 atm (at stp) water boils at 100 degrees celcius. This is sufficiently hot enough to boil an egg.\n\nAs you rise higher in altitude, there is less air above you and so the atmospheric pressure becomes less. This allows gases to escape from liquids more readily (a can of coke is pressurized to 4 atm's). As a result, the water will boil more readily at a higher altitude, however, it will do so at a lower temperature than it would at sea level, so it would take the egg longer to cook.
324372
Nail polish and stop stressing!!! ALWAYS have a nail file with you so if you get a jagged edge, your not tempted to "nibble" it smooth.
320056
http://newton.ex.ac.uk/teaching/CDHW/egg/\n\nRead the section about "Boiling Eggs on a Mountain." The simple answer is that since the boiling temperature of water drops, you have to cook the egg longer (since the temperature is lower).
955216
Tenderness can be caused by neuropothy (spelling) due primarily to diabetes, inflamation, response to cold, or a variety of reasons. If in pain, or the problem is intense, I would probably get to a clinic as fast as I could. \nBetter to find out than to guess. \nAlso, I keep my nails short. I find that the nerves under my finger nails get enraged when the nails click the keyboard all the time.\nI spend a lot of time on the computer between my school work and here on yahoo answers, as well as general chatting and running through various other tasks.
46190
Yes, you need to see a doctor. The nail is dead and you may infect your toe if you are not careful. Do not dig at it you might cause further damage
1154007
hmmm, interesting, I should imagine it's related in some way to the specific heat capacity of an egg vs that of water, as well as the entropic changes involved with the egg yoke and egg white denaturing....need to think more about this\n\nedit...I don't see the full relevance of this equilibrium argument, it merely describes the time taken for heat to permeate the egg, nothing about itsd heat capacity relative to water. That all the water is the same temp is due to its thermal conductivity. Granted in a practical environment time is a factor, because you would be losing heat to the environment from the system whilst keeping the water boiling. I think we need to lay down some assumptions. What kind of egg are we delaing with and is it to be hard or soft boiled (changes of state)
233594
I had the same problem.  Try Orly nail Defense.  It strengthnes your nail.  Believe me, I tried everything but this one really works.  It might take 2-4 weeks to see result.
648548
My mom-in law put poo in her mouth! It was an accident, but was funny. She had changed my son, and she got poo under her nail and didn't know. Then she washed her hands (not very well) and sat down to eat. She was eating chicken with mole (gravy) and thought she had gravy under her nail. When she sucked it out, she tasted the poo! It was hilarious!
839998
Don't worry your not the only one with problems with toe touches..... I suck at them too.....if you go to About.com andsearch toe touch tips its really helpful! To practice, I usually do 50 toe toches a day(not all at once) and stretch stretch stretch!!!! It's also good to practice on a trampoline to helpget height and stretching your legs......... Good Luck!!!!!!
1025061
Because as we age our bodies process the nutrients necessary for growing healthy nails changes.  I don't have a reason why they get thicker, but the change in growth speed has to do with how our bodies process its nutrients.
600362
here is an idea that may work for the fingernail fungel infection -- ADD SOME ZINC to the daily vitamin supplements. Bathing your hands in a bowl of wather with 2 drops of essential oil of sage, every day for a week, will help too. Its caused from bacteria for one thing.. and thick fingernails are a sign of poor diet but also in the maturing years. "Tea Tree" essential neat oil drops massaged on nail & nail beds may also help. IF you know of a armomatherapy shop in your area they can make a mixture of Tea Tree & Tagetes (5 drops each) oils diluted with 2 teaspoons of olive or grapeseed oil - if its not a fungus.\n\nas for the "eczema" -- the root problem may be due to allergy - cow's milk or eggs. There also is some type of correlation between allergies in the family and eczema. Even if parent or grandparent has history of hay fever, eczema, asthma, psoriasis -- or even food allergies!! If mom has allergies she probably passed them on.... \nDermatoligist should check that all out -- if its truly bothersome & itches alot -- it can be releaved by applying affected area twice a day with essential oils. Again, check with nearest aromatherapy shop -- mixure should be chamomile, yarrow, tagetes with 10 drops of primrose oil --
362890
Eat jello, or some other form of gelatine.  I know it sounds silly, but it really improves your nails and hair, and helps your joints too.  Give it enough time for your nails to grow out, though, before you will see any results; it won't improve what is already there, but will help them grow stronger while you eat it.