Cathode Ray Experiment Essay

In normal mode, the oscilloscope only sweeps if the input signal reaches the set trigger point; otherwise (on an analog oscilloscope) the screen is blank or (on a digitizing oscilloscope) frozen on the last acquired waveform. Normal mode can be disorienting since you may not see the signal at first if the level control is not adjusted correctly. Auto mode causes the oscilloscope to sweep, even without a trigger. If no signal is present, a timer in the oscilloscope triggers the sweep. This…

The carbon supported PtFeS catalysts were prepared by a modified polyol method. In brief, 0.3 g carbon (Ketjen-black heat-treated at 2250 °C, SE = 160 m2 g-1) was dispersed in 135 g ethylene glycol. 5.993 g of 8 wt% H2PtCl6 (Umicore; Pt content, 39.8 wt%), 1.874 g of 8 wt% FeCl3. 6H2O (Sigma-Aldrich), and 0.352 g of 8 wt% (NH2)2SC (Sigma-Aldrich) previously mixed in ethylene glycol were added to the dispersion. The pH of the stirred reaction mixture was adjusted to ∼11 using 1 M NaOH dissolved…

DISCUSSION: In this investigation, the effect of electrolyte concentration, depth of electrode immersion in electrolyte, and distance between electrodes in electrolyte, on the current flow through copper electrodes were tested. Table 1 and Graph 1 display the results when increasing electrolyte concentration. Evident in Graph 1, the results contained scatter, and consisted of an outlier in the sample in which the ratio of NaCl: deionised water was 10:30mL. The outlier and scatter may have been…

An unexpected murder case has arrived again but this time it was in a different town next to Beverly Hills. that Laposha Brown was in. However this time it wasn't Daniel Grayson, since he died nearly over 6 years ago. Some say his soul still roams around town haunting everyone who ever had something to do with him. Laposha Brown is now currently living in secret with her son, Todd Grayson, for fear that her brother Tyler may find out her dirty little secret. Tyler is happy since he’s been out of…

Thesis for Research Paper Throughout life, there are certain technological advancements everybody experiences which affect their lives in either positive or negative ways. To be more specific, the field of photography is a field which has had some major technological advancements with imaging, resulting in the discovery of radiographs, computed tomography and magnetic resonance imaging. The chain reaction of advancements from photography to medicine has helped the world in increasing life…

X-Rays Development of the X-Ray In 1895, a mechanical engineer and physicist named Wilhelm Roentgen created the X-ray. He was born on March 27, 1845 in Germany. So in 1895, Roentgen was playing around with a cathode ray tube and evacuated all the air inside of it and replaced it with another special gas. Then, he covered the tube so nothing escapes it, passed a current through it, and then the tube produced a fluorescent glow. After further investigations, Roentgen wanted to see how strong this…

There will be a delay of 2 minutes between learning and recall. 5. The reasons for carrying out the experiment will be explained to the participants but not the experimental hypothesis. 6. Each participant will be debriefed at the end of the experiment & given the opportunity to ask any questions. 7. If the participants do not wish to continue with the experiment or wish to withdraw their consent, they will be permitted to do so. 8. Participants will be given a…

Strengths for The Behavioural and Biological would be that they’re both reductionist, scientifically valid and creditable, because they are able to produce scientific results from their controlled experiments. Benefits for The Biological is that it has shown to be useful to providing evidence of biological factors causing certain behaviours or illnesses. An example of this would be that depression is caused by a chemical imbalance, thus creating a drug…

behavior are affected by internal processes and the environment, uses three main methods to study behavior: Case studies, correlational studies, and experiments. Each of these studies has its own advantages and disadvantages, so it is impossible to determine which is better, as each study’s effectiveness depends on its nature. Case studies, experiments, and correlational studies all have something in common, though: they can all be affected by research bias. This is a disadvantage in any study,…

There is a disparity and unequal treatment of blacks compared to whites in American medicine. During the slavery times African Americans had several diseases that were said to be for blacks, such as Struma Africana and drapetomania (152). For example, Struma Africana was a type of tuberculosis that was just for blacks. These diseases were made because the cures for whites were not meant for blacks since they were believed to harm and kill them. The reason why blacks developed more diseases than…