Mostrando resultados por narrador "Dennis E. Morris" en Todas las categorías

On Wednesday, March 28, 1979, 36 seconds after the hour of 4:00 a.m., several water pumps stopped working in the unit 2 nuclear power plant on Three Mile Island, 10 miles southeast of Harrisburg, Pennsylvania

Uranium is best known for the destructive power of the atom bombs, which ushered in the nuclear era at the end of World War II, but given the effectiveness of nuclear power, plants like those at Three Mile Island in Pennsylvania were constructed to generate energy for Americans during the second half of the 20th century. While nuclear power plants were previously not an option and thus opened the door to new, more efficient, and more affordable forms of energy for domestic consumption, the use of nuclear energy understandably unnerved people.

Most people have heard of the Seven Wonders of the Ancient World, but while not as many have heard of the Seven Wonders of the Modern World, those who have are aware that the Panama Canal is considered one of them. In a world where few natural rivers carved out over eons of time have reached a length of more than 50 miles, the idea that a group of men could carve a canal of that length seemed impossible. In fact, many thought it could not be done.

One of the most important and memorable events of the United States' westward push across the frontier came with the discovery of gold in the lands that became California in January, 1848. Located thousands of miles away from the country's power centers on the east coast at the time, the announcement came a month before the Mexican-American War had ended.

One of the most important and memorable events of the United States' westward push across the frontier came with the discovery of gold in the lands that became California in January 1848. Located thousands of miles away from the country's power centers on the east coast at the time, the announcement came a month before the Mexican-American War had ended, and among the very few Americans that were near the region at the time, many of them were Army soldiers who were participating in the war and garrisoned there.

Uranium is best known for the destructive power of the atom bombs, which ushered in the nuclear era at the end of World War II, but given the effectiveness of nuclear power, nuclear power plants were constructed around the developed world during the second half of the 20th century. While nuclear power plants were previously not an option and thus opened the door to new, more efficient, and more affordable forms of energy for domestic consumption, the use of nuclear energy understandably unnerved people living during the Cold War and amid ongoing nuclear detonations.

This book is a resource for building your own solar PV supply for remote cameras, LED lighting systems, communication, sensors, and remote cabin and home power systems with solar PV power system examples. The solar energy resource varies with time of day, season, and local climate. Solar PV panels, sized properly, produce reliable and predictable energy production, despite daily variations, when calculated properly for each month.

One of the most important and memorable events of the United States' westward push across the frontier came with the discovery of gold, in the lands that became California, in January 1848. Located thousands of miles away from the country's power centers on the East Coast at the time, the announcement came a month before the Mexican-American War ended. It brought an influx of an estimated 90,000 "Forty-Niners" to the region in 1849, hailing from other parts of America and even as far away as Asia.

In times of emergencies, electrical grid power is the first to go out. Blackouts, floods, hurricanes, tornados, earthquakes, land slides, you name it, the natural world can unleash catastrophes which leave people without basic services, and especially sources of electricity. Solar energy is an excellent source of power for charging batteries especially in emergencies and prolonged blackouts. This book describes how to build a solar power supply and system which is portable, rugged, and sturdy in construction.

More and more states and countries all over the world are embracing the medicinal benefits of the cannabis plant. In many states the legalities of cannabis cultivation and use are changing. Some have even legalized recreational cannabis, or marijuana. Due to this change in laws, people are now considering growing their own legal cannabis for personal and professional reasons. This book will give you not only an outline, but also in-depth information about the methods of cannabis cultivation - from selecting seeds to the final product.

Covers 50 seminal events, from the Wright Brothers to the moon landing, and from conquering Everest to beating apartheid. Step back in time with Flashback: 50 Events That Shaped History, a fascinating look back at the 20th century's most memorable moments. Whether it's walking up Everest, walking on the Moon or walking to freedom with Nelson Mandela, this publication provides instant access to the most important events in the world's recent history.