... and are therefore silent. Another large advantage is that fuel cells, unlike today's power sources, are non polluting, solving an increasing concern around the world. One of the most important advantages is that fuel cells are fueled by hydrogen and oxygen which both have unlimited supplies and are "recyclable." However, this raises the first of the disadvantages. Hydrogen is not readily ... are expensive to produce. Yet another disadvantage is that some models, as shown earlier, produce extreme heat which raises more problems. It is important to see and approach both these advantages, ...

• Word Count: 1822
• Approx Pages: 7

... 's entire training curriculum, including highly interactive, multimedia applications at speeds that rival human thought. Microchips and microelectronics have influenced communications and entertainments industries: fax machines, cellular phones, e-mail, Internet, satellite television, video games, surround sound and compact disk and digital video disk players. Voice transmissions over telephone lines now include data and video ... virtual organizations or offices on the other side of the globe, in the next room or on a screen world away, accessible in seconds. Portable laptops computers, ...

• Word Count: 5590
• Approx Pages: 22
• Grade Level: Undergraduate