Because the Internet makes digital media easily accessible, copyright infringement is a more serious risk than ever before. At the same time, great creative and educational opportunities arise from the unparalleled availability of so much creative work. A system called Digital Rights Management (DRM) has been developed to enforce and protect copyrighted digital media and [...]
The refrigerator is an important instrument of food preservation for modern society. The refrigeration cycle is the chemical process that drives the refrigerator and generally consists of four main steps: 1) compression of ammonia refrigerant; 2) cooling of ammonia refrigerant; 3) expansion of ammonia refrigerant; and 4) drawing in of heat from the core of [...]
In a sport where a hundredth of a second can make all the difference, swimmers are constantly looking for ways to increase the efficiency of their stroke and improve their times. However, the physical force of drag remains a swimmer's ultimate obstacle. There are multiple forms of drag - friction, pressure, and wave - and [...]
Billions of dollars are spent by consumers on hair care products every year, mostly on shampoo. Consumers are bombarded every day by advertising that promises stronger, shinier, healthier hair. Actually, differentiating additives, such as vitamins, account for small percentages of shampoo ingredients. The consumer may be shocked to hear that many advertised promises fall flat [...]
