.... a rarefaction. It bounces back through the tube to the closed end, where it is reflected. the wave has now completed a single cycle. It has passed through the tube four times making the closed tube, one fourth the length of a sound wave. By a continuous sound frequency, standing waves are produced in the tube. This creates a pure tone. We can use this knowledge of one fourth wavelength to create our own demonstration. It does not only have to be done using wind, but can also be demonstrated using tuning forks. If the frequency of the tuning forks is known, then v=f(wavelength) can find you the length of your air column. .....

.... Cannabis Indica, and Cannabis Rudderalis. These three plants vary in size and mood altering effect. The hemp plant has many uses and has been farmed for centuries. Marijuana can be taken in three ways, by eating, made into a tea, or smoking (the most popular). Smoking it can be done three ways, through a pipe, a joint, blunt. A joint is a rolled piece of paper that is twisted at the ends. A blunt is normally an emptied cigar wrapper filled with marijuana. In a blunt you can fit much more marijuana. Though a blunt isn't always purely marijuana, it can be mixed with other drugs such as angel dust. The results are varied .....

.... Mendeleev stated the periodic law: The properties of the elements are periodic functions of the atomic weights. provides an easy way to show the division of the elements into acid-forming and base-forming types. Those on the left are base-forming; those on the right are acid-forming. Those in between can be either. They have so-called amphoteric oxides and hydroxides that can act like acids or bases. 's arrangement also divides the elements into metallic and nonmetallic kinds. A distinction is usually made between most pure metals and nonmetals according to physical and chemical properties. Another virtue of is that it is universal. No .....

.... 5. Disk-winged bats of Latin America have adhesive disks on both feet that enable them to live in unfurling banana leaves (or even walk up a window pane). 6. Nearly 1,000 kinds of bats account for almost a quarter of all mammal species, and most are highly beneficial. 7. Worldwide, bats are the most important natural enemies of night- flying insects! 8. A single brown bat can catch over 600 mosquitoes in just one hour! 9. Tropical bats are key elements in rain forest ecosystems which rely on them to pollinate flowers and disperse seeds for countless trees and shrubs. 10. Bat droppings in caves support whole ecosystems of unique organi .....

.... were at 5 (normally 0). The child was on a current medication of a decongestant and Amoxcillin. Amoxcillin has no effect on inhibitting the viral growth of Pneumonia influenza, Rhinovirus, Parainfluenza, Corona and respitory synctial viruses. This also eliminated the disease obviously effecting the respitory tract and the child's neurology (lethargy and malaise) form being bacterial or fungal, which is common amongst young children. A number of viruses cause respitory illness similar to the common cold, but are much more severe in intensity and wit frequently serious, and even fatal, complications. The best known of the group is Influe .....

.... were developed along with the computer. They were developed very slowly. They went from being very large, clumsy, elaborate machines which needed lots of human intervention to one program on a floppy disk. When the power of computers increased, so did the possibilities of CADD. Images on CADD systems are drawn with the aid of a keyboard, mouse, or tracking ball. One selects the starting point of a line, the ending point, and the line is drawn. A scale at the bottom of the screen tells how long the line will be. On some CADD systems, the computer itself can measure how long the line will be while the operator inputs the length of the lin .....

.... he found he had the power to create life. The doctor's scientific success in creating the monster was ultimately a failure for morality. Frankenstein, upon completion of his monster, realized the immorality of his work and rejected it and disassociated himself from it and science. The result of Frankenstein's immorality was death for just about everyone he loved and utter despair for himself. The monster was not necessary for our future and neither were the methods of his creation. Because of the doctor's irresponsibility, he lost everything including his life. The monster, spawned by the immoral science of Frankenstein, was witnes .....

.... tests I created graphs and tables of my work. At the conclusion of my experiment I came up with an answer that was almost unpredictable with the information that I was using. Although this was a crude experiment, I believe that I did gain a lot from it. Introduction The drug that I chose, Ibuprofen, is an anti-inflammatory analgesic. It is propionic acid that is white and powdery, and soluble in water, and organic solvents such as ethanol and acetone. (1) Its structural formula is: (CH3)2CHCH2 CH(CH3)COOH Its role of action as a drug is not completely clear to the sciences, but that with time w .....

.... side the organisation. This report proposes the need of security and ways in which the organisations secure their business information will be discussed. Facts and findings 2.1 What is Security? “ Security is the state of mind” [1] An example is mission impossible one of the detective movies who show how easy it is to tap a telephone- Although it is illegal unauthorised access is gained, damage can be done to sensitive data if leaked from one company to another which can provide criminals with the electronic gold mine of fraud opportunities.[2] so this justifies the need for security. Many definitions say that .....

.... of computer processor architecture. Which is replacing CISC in some uses. Define the term RISC. Describe the characteristics of RISC technology. And also point the advantages and disadvantages of using this technology. At the end of this report you will also be able to describe the major differences between a CISC instruction set and a RISC instruction set and list some key advantages and disadvantages of RISC as compared to CISC 2. Introduction Speeding up a computer system involves many different strategies. By speeding up the input and output devices in different peripherals. But the most fruitful place to speed up the .....