Light

Introduction How does temperature affect the time glow sticks stay lit? Glow sticks are fun, safe, and interesting to kids all around the year. These light sticks were made for military purposes which were patented in 1973, but Edwin Chandross of Bell Labs’ oxalyl chloride and hydrogen peroxide glow stick was patented in 1960’s. Chemiluminescence is a luminescence resulting from a chemical reaction which is how glow sticks work. A glow sticks has a glass vial, a small glass or plastic bottle…

Randy Scott gazed out of the filthy window near his cluttered worktable on the fourth floor of the Leather Works, watching the clouds pass by, and wondering what a new year would bring. It was March of a new decade, 1860, and he was hopeful for a better life than he had had so far. July 9th would be his fourteenth birthday, and most boys his age were on their own by then. He dreamed of the day when he could get away from the orphanage and away from the Leather Works. The Armstead and Sons…

There are many different methods for developing latent fingerprints. Some work better on non-porous surfaces, while others work best developing prints on porous surfaces. Some are destructive preventing testing the object for other forensic evidence while others are non-destructive. In order to make prints visible on porous surfaces, forensic scientists use one of three methods; Silver Nitrate, Ninhydrin and Iodine fuming. These three methods are known to be the most effective ways for…

One way of measuring IRE values is through a waveform monitor, which is a sort of light meter that follows what is happening on the camera screen from left to right. It again is on a scale of 0-100, and any vertical slice has light and dark areas on it. A particular IRE value in a scene appears in the form of zebras, which are diagonal lines seen in the viewfinder. A value of 100 IRE represents pure white…

Algae, a form of biomass, help lakes, but they do need the right environment with the correct pH and different light conditions in order to aid the lake’s health. Algae use sunlight to make food for themselves and give themselves energy through the process known as photosynthesis by using chlorophyll. They also absorbs carbon dioxide, turning it into energy, which would take place more in the nighttime when it’s dark. In this longer-term experiment, I will be evaluating the sun or lack of sun’s…

able to sit back on the pew and enjoy some peace and just reflect back on life. As I was there, I noticed that beautiful stained glass windows, the light reflecting through them became more vivid. It seemed to fill me with warmth and a comfortable feeling. The colors of the stained glass windows became more real. When I looked through the glass the light was dull, but when I began to appreciate the work of art more when the sun came out. You are only able to see the full work out stained glass…

return to their original energy level, energy is released as light, coloring the flame (“Flame Tests”, 2005). And as energy increases, frequency increases, but wavelength decreases. The color each chemical turns the flame depends on the light energy’s wavelength. For example, higher wavelengths (around 700) are colors such as red and orange, and lower ones (around 400) appear blue and violet (Timberlake, 2014). This denotes that light energy that gives off warmer colors…

in the North and there was less focus in mythology unlike the paintings in Italy at the time. Both the engraving and the panel depict the resurrection of Christ. He appears above his tomb, partially wrapped in a long shroud and there is a halo of light around his head. His arms are splayed out on either side of him, loosely mimicking his position on the cross and he is in the classic contrapposto pose. Grünewald’s Christ has a supernatural quality, as he is shown hovering and rising out of the…

from the luminous light above the doorway and the lamp on the desk. This symbolises the darkness of the joker as the lamp casts a light which shows the Jokers' face but possesses the space behind him hidden in darkness, the significance of this is that the Jokers' face is seen but the meaning of such an act is that it is displaying the character’s inner darkness and evil. The scenery of this scene is an interrogation room with marked white walls, a dirty floor and fluorescent lights. The only…

How does it feel to know that your purpose is rightful, yet be criticized? How should one feel? One is convinced of one’s purpose for doing something for the general good, yet, instead of receiving support from those who are closest to one, one receives rejection, criticism, and judgmental responses that change the spectator’s opinion negatively towards, whatever it is that one is rightfully doing. This is a social problem that has become a trend throughout time. When members of society see that…