How does oil & dirt get washed away with soap?

Written by Dr. George Grant

Continued from page 1

In this case, when soap is applied to oil and grease,repparttar lipophilic parts of soap will attach itself torepparttar 149047 non polar molecules of oil. However,repparttar 149048 other component of soap,repparttar 149049 hydrophilic component, will be left onrepparttar 149050 surface. When water is applied onto this surface with a sponge,repparttar 149051 hydrophilic component will be attracted torepparttar 149052 water molecules and is lifted fromrepparttar 149053 surface, together withrepparttar 149054 oil. This way, both oil and soap is removed withrepparttar 149055 wipe ofrepparttar 149056 sponge. Atrepparttar 149057 same time, because soap molecules have been combined with oil, other soap molecules will also be attracted to it. This is why you can see clusters of oil that are surrounded by soap withinrepparttar 149058 water that has been used for washing. Of course, once soap has been used up to attractrepparttar 149059 oil, more soap would need to be added to work onrepparttar 149060 access oil.

In conclusion, our lives have been made cleaner and easier throughrepparttar 149061 wonders of a simple substance called soap. Without it, we would be having a difficult time removing dirt, oil and grease in our everyday cleaning. Visit for knowledge on chemical elements,chemistry directory,chemistry tools and much more.

Dr. George Grant is an experienced researcher in Bio-chemistry. He has done extensive researches and experiments in the field. He is a visiting faculty for some of the most reputed Science colleges.

The fertilization process and implications of test tube babies

Written by Dr.Richard Waller

Continued from page 1

Other issue of concern is that through this procedure, some ofrepparttar eggs fertilized inrepparttar 148938 lab are later discarded. Does this procedure mean thatrepparttar 148939 researchers are actually killing potential people? How isrepparttar 148940 line drawn in this case?

Then there is alsorepparttar 148941 issue of commercial opportunities for eggs and sperms to be bought and surrogate wombs to be rented withrepparttar 148942 purpose of creating babies. This process of embryo transfer to another mother, not necessarilyrepparttar 148943 same woman who had providedrepparttar 148944 eggs, is known as placingrepparttar 148945 embryo in a gestational carrier. This procedure has been becoming increasingly common through technological advancement, which has made couples including women with uterus problems, have a chance in having their baby.

Test-tube babies have really brought changes torepparttar 148946 way in which babies are conceived and have given much hope to many who have had problems having babies throughrepparttar 148947 process of . However,repparttar 148948 downside of this arerepparttar 148949 ethical issues behindrepparttar 148950 procedure, with which still poses a big question mark and with which is still opposed by many factions.For more details on cell, molecular and human biology please visit

Dr.Richard Waller has helped thousands of infetile couples and gave hope to childless women since 1989. He is an expert on in-vitro fertilization and has conducted numerous seminars on the subject.

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