Lab Research Report
January 27, 2014
Lab Research Report
Research in the physical sciences has often been limited by our abilities of safety observing and studying the phenomenon in question. Even before the thought of microscopes, it would have been impossible to comprehend the composition of the most basic cells. The exact issues are the current issues in the field of physical science today, but it’s particularly true in the world of physics. While new technologies exist to measure phenomenon, it is not always safe to do so in the field that deals with radiation, unstable compounds, particles and atoms. As a result, the technology that we have in the ...view middle of the document...
Instead, scientist have utilized other substances to measure the location at a particular point in time such as when an electron passes through a particle detector layer. The third major obstacle to direct measurement in the field of physics is that so little is known about the field that has never been observed before. The field of physics requires creative solution and the constant invention of new measurements techniques to explain the way in which the universe woks on a subatomic scale. Historically, there has been many influential tools and technologies on physical science. One tool that has been influential would be the microscope. The microscope was created with a simple lens in the 14th century. The microscope has developed into a tool that is able to use electrons to develop high resolution images of small objects. The simplest microscope works with a system of two curved lenses that magnify an image with the way in which they bend light. The use of multiple lenses at two ends of a tube greatly increases the magnification effect of the microscope and by moving the lenses, a sharp focus of the object can be obtained. With a microscope, the first cell was discovered, followed rapidly by the inner mechanisms that allow life in plants and animals alike; today the invention of high resolution electron microscope and scanning tunneling microscope have allowed us to finally be able to see even tiny virus particles and objects down to the atomic level. A second major breakthrough in the scientific ability to directly measure scientific phenomenon came in the discovery of x-ray imaging. The most obvious use of x-ray imaging is in the medical field, allowing diagnostic pictures to be taken of bones and teeth. However, the usefulness of x-rays far exceeds just that of medicine and they have actually allowed many of the experiments in physics to occur. X-ray imaging techniques are one of the major ways in which subatomic particles are imaged and detected. Moreover, it is only through the technique of x-ray crystallography that we know that the structure of DNA is a double helix. Across the various forms of x-ray imaging, the basic premise is that an x-ray beam is projected through the object being studied, which then exposes either a piece of film or an electronic detector -like a digital camera uses to take pictures. The image then shows a pattern of how the x-ray particles were scattered by denser material, such as bone or a protein’s structure.
bend light. The use of multiple lenses at two ends of a tube greatly increases the magnification
effect of the microscope and by moving the lenses, a sharp focus of the object can be obtained
(Nobel Media, 2013).
A Survey of Safety
Work with x-rays and radiation, however, pose their own risks to the researcher.