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Why is ice slippery
موضوع: عمومی تحقیقات مقالات | تاریخ ارسال: شنبه 9 آبان 1388
Flat and smooth floor room can be easier to eat slippery floor Ghyrsyqly. Apparently slipping on the ice must be also, the ice must be smooth and rough ice Lyztr post is long. But if the events that you manually loaded a sled from the ice and rugged long post and down, then that will certainly sled, unlike expected, better than the ice on such smooth slippery ice eats. Rough ice from the ice is smooth like mirror, Lyztr is! Nstkh why this amount being slippery ice before anything else, not being flat and smooth ice, but other special phenomenon completely depends on it as: increasing the pressure, temperature, water ice comes down. Sleigh riding when I'll see what action can be done. All our weight on a sled small surface pressure brings. Ice under pressure in the water temperature is less. For example, ice temperatures 5 - degrees and pressure of water ice sled point in the take down more than 5 degrees, ice water will be below .* sled then state what occurs?
Blade then between sled and ice water is a thin crust, and other slip no wonder. As soon as the sled goes where the action takes place. Everywhere, under the ice crust to thin sled into the water. Among all the objects in the world's only ice feature is that it is. Fyzysyn Game of ice "sole object slippery nature has called. Other objects are flat and smooth, not slimy.
Now we return to the issue of whether ice or ice Lyztr smooth rough? Know that a reliance on any particular level is less pressure on the surface it is relying more. Adam pressure when the surface is more Atkaysh: When the ice is like standing flat mirror, or when rough ice? It is clear that the second case, because in this case on Adam few lumps and bumps are relying on rough ice surface. And everything is larger ice pressure, ice is more water and thus is Lyztr (if the blade is wide enough to sled). Because many other phenomena of everyday life we also fall under the ice point of water pressure, is. If a few pieces of ice to each firm Bfsharym, so this feature ice, a few pieces to stick to each other and integrated as in ice come. Boy that when the snow snowball game fist Myfshard, most uninformed this feature ice particles (snow grains) of water under pressure collaborative authoring point comes down and become stuck to each other uses. When large balls of snow on the ground Ghltanym to create snowman, ice still this feature use: seeds snow balls with the bottom to find the contact, under pressure, mass effect snow, become stuck to each other. Of course, now you understand why the severe cold and snow grains do not stick to each other and can Bzhmt to correct snowman. Snow walking foot pressure as a result Rvha Rhgzarn is gradually compressed, the seeds attach to each snow and ice an integrated class occurs.
After today, after not try when snow, make snowman and do this work when the rain stopped and the weather is slightly warm.

                                                                                                                                        Masoud Behnam

* Of the theory that can account for a lower grade point of water ice much pressure, 130 kg cm square, is required. Such pressure on you sled brings into ice? If the surface slippery sled sled weight division, we much smaller number is obtained. This shows that all the slippery surface of ice sled to not stick, but very little part of it with ice stick.
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