Gas chamber

The Viola HISTORY: The viola came into existence in the early to the middle ages of the 16th century. They are the most expensive instruments made in the 16th – 17th century costing at about 27million. Being a member of the string family it is very similar to the violin, they seem to share much of their history. Built to be a larger version of the violin, it was once called the ‘alto-tenor’ violin. To find the correct relationship between the size and volume of sound of the instrument,…

A musical instrument is often lamented as an expensive piece of equipment, easily costing thousands of dollars. However, did you know that there is such an act as Piano Burning? That’s crazy, some may think, maybe the person is absolutely insane- or just really hates the piano. However, that is not so. Piano Burning is an action of setting an acoustic piano on fire. It is usually ceremonial or for visual entertainment. How this tradition began is a mystery. Some say that this may have started…

A ray of light in a world filled with darkness--that is what NYCB is. And on every occasion the company presents Jerome Robbins' sublime, majestic The Goldberg Variations that light shines even brighter. Especially if the work is as lovingly performed as it was on Saturday evening by Ashley Bouder, Sterling Hyltin, and Sara Mearns (from all three of whom I have been accustomed to expect efforts of the highest caliber); Lauren Lovette, Emilie Gerrity, Anthony Huxley, Taylor Stanley, Daniel…

Introduction: Photosynthesis is the process used by plants, algae and some bacteria, to use the energy from the sunlight to transform carbon dioxide and water into glucose and oxygen. The equation for photosynthesis is: carbon dioxide + water light energy glucose + oxygen. Chloroplasts are an organelle found in the leaves of green plants and are essential in photosynthesis as they are responsible for producing the glucose and storing the energy. Photosynthesis is vital for all life on…

Procedure: Before beginning each experiment, remove all clutter from the workstation and read the directions for the experiments thoroughly. Part 1: Warm slightly more than 300 mL of water to approximately 70 degrees Celsius. Measure out 150 mL of water into the coffee cup calorimeter. Take the temperature of this water in the coffee cup calorimeter once it has reached a steady temperature. Then, add an ice cube approximately the size of a large marshmallow. Stir the ice and water and measure…

This reaction involves very intricate and steps that are critical to understanding the concept of equilibrium as a whole. First, an important concept to understand when describing any reaction is the idea of collision probability. When we examine gas molecules in a 1 cm3 container, there can be billions of collisions per second between neighboring molecules, and even then, maybe only one of these collisions result in a reaction. If any one collision occurs, the only way they will react to form a…

Ultrasonic interferometer Working principle An ultrasonic interferometer is a simple and direct device to determine the ultrasonic velocity in liquids with a high degree of accuracy. An ultrasonic interferometer is used to determine the accurate ultrasonic velocity in liquids. The principle used in the measurement of velocity is based on the accurate determination of the wavelength in the medium. The principle of ultrasonic interferometer for the measurement of velocity is determination of the…

When dry ice is put into water they start to reacting and boiling. That reaction is called sublimation. Sublimation is when something solid goes straight to gas skipping the liquid phase. So because the water is warm it heats up the dry ice which causes it to form a gas. The gas is carbon dioxide. The temperatures of everything are very strange. The water cannot be cold when trying the experiment because it will not heat up the dry ice and create carbon dioxide gasses but it will probably…

A mixture of two unknown liquids were obtained. The assigned mixture code was recorded in the notebook (#10). The mixture of the two miscible liquids contained a low boiling point and high boiling point. The method used to separate the two miscible liquids was simple distillation and therefore a simple distillation apparatus was set up. The apparatus included 250mL distillation flask, a 100ml receiving flask, a condenser for water to run through, and a thermometer to monitor the temperature. The…

IB Standard Level Environmental Systems and Societies Internal Assessment The Effect of Varying Amounts of Yeast on CO2 levels IA1 Isobel Woodfin Third Period October 14th, 2015 Paul Ogle-Sporer, Davis O’Shea SECTION 1: PLANNING Research Question: This lab was designed in order to answer the question: How do increased/varying amounts of yeast affect the CO2 levels of decomposing apple? Introduction: This experiment tests the effect of varying amounts of…