Category Archives: Essays on Science
As we turn over the pages of history, we come across the development made by man in different walks of life over the centuries. From the primitive Stone Age to the Modern computerized era, every step of man has proved to be the milestone in the history of civilization. Modern science has evolved over a period, and has now reached the peak of success. It works wonders in our life, it can be said that it is altogether a blessing.
Commercial capacitors are constructed with a metallic foil that is interlaced with paper that has been impregnated with paraffin or Mylar for dielectric materials. For capacitors that look like cylindrical tubes, the metal foil in them has been rolled up and the dielectric material is between the sheets.
The controversy surrounding stem cell research has been raging on in the media and among political circles for quite some time now. The whole issue basically centers on the creation, use and the elimination of human embryonic stem cells (Stem Cell Basics). This is mainly based on the use to which this research may be employed in the future and the impact it may have on human society in general. The destruction of the human embryo in the course of stem cell production is a very touchy topic indeed.
1) They are “permanent” in that they are formed in the fetal stage, prior to birth, and remain the same throughout lifetime, barring disfiguration by scarring, until sometime after death when decomposition sets in. That means that the prints do not change during a life time. That’s not all true because fingerprints do change, but the changes can be explained. If not, they can’t be identified. The changes can be made by: flexibility from the skin, growing, a dirty finger, scarring, a wound, or a disease of the skin.