Essays on Microscopes

Raman spectroscopy is dependent on scattering of light. When light interacts with matter, energy exchange can take place through absorption, simulated emission, Raman scattering or spontaneous emission. In Raman scattering, the emitted photons have less energy and lower frequency in comparison with the absorbed photons. Some energy of the emitted photons is transferred to the molecules. Raman spectroscopy is a method which collects the chemical fingerprints associated with molecules. Every molecule has different levels of vibrational energy and the emitted photons experience shift in their wavelengths. The wavelength shifts are collected,examined and analyzed for sample identification. Raman spectroscopy ...

Abstract

This examination paper acknowledges the spectacular diversity of reproductive adaptations for survival of various categories of land plants. It describes a typical life cycle of a land plant that reproduces via spores. It also identifies the different parts of Plant organs and their functions such as cell organelles, parts of a land plant, and epidermal cells. A microscope is an important tool for examination of biological specimens, including cell’s internal structures called organelle and is important in magnifying the focused area. Plants are classified into four main groups, namely, ferns, mosses, flowering and confers. This paper finds that ...

There is no doubt that there have been several women writers who have not been awarded a justified position in the so-called “canon” of English literature. There are names such as Margery Kempe, Marie de France, Lady Jane Grey, Mary (Sidney) Herbert, Mary Queen of Scotts, Aemilia Lanyer, Elizabeth Cary, Mary Wroth, Katherine Philips, Margaret Cavendish, and many more who challenge an equivalent share of fame, with the labors of their classical male contemporaries because of their prestigious works. The prime focus of the paper is to discuss Margaret Cavendish, a writer from the 17th century and presents a ...

Teeth are considered to be among the hardest substances in the human body, its’ essential function is to aid the process of food digestion. Through chewing, teeth break down food materials in the mouth to smaller substances that can be swallowed for further digestion and absorption in the stomach. Besides being vital in digestion, teeth also play a significant role in providing structural support to the facial muscles that are responsible for different facial expressions such as smile and frown. Teeth are also an important component in speech, functioning together with the tongue and lips. The human tooth is ...

The field of microbiology was very limited until the discovery of the microscope, though it did exist in a very practical sense. Though scientists were ultimately wrong about what actually carried and transmitted the plague, for example, they were correct in hypothesizing that it came from an outside source. Between then and now, the microscope was developed, and has been improved upon more and more. Now we have a great classification scheme for prokaryotes (assuming bacteria). It follows the standard domain, kingdom, phylum, class, order, family, genus, and species. The standard for most eukaryotes is also the same for ...

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Collection and analysis of evidence in modern crimes has turned out to be difficult. However, with the technological advancements, new techniques have been devised which aid in this procedure. Evidence could exist in biological, physical, or verbal forms. Among the biological evidence, hair has turned out to be a significant bit of evidence in most scenes of crime. This paper discusses hair as a rich source of evidence in crimes, the nature of hair as evidence, collection techniques and the true value of hair as evidence. The paper also explains why hair as evidence cannot be used to know ...