The first airplane that was flown was a glider. A glider is a non-motorized flying machine (and very hard to control.) Early gliders were launched from high places like cliffs and floated on the wind to the ground.
A man named Sir George Cayel made the first glider that actually flew. His first glider didn't have passengers or a pilot. It was too small and could not fit anyone in it. He made another that flew his coachman across a small valley. This glider was not launched from a cliff.
During 1890 while Orville and Wilbur Wright
Virus
Thursday, 30 May 2013
Viruses have existed as long as life has been on earth. Early references to virusesEarly references to viral infections include Homer’s mention of “rabid dogs”. Rabies is caused by a virus affecting dogs. This was also known in Mesopotamia. Polio is also caused by a virus. It leads to paralysis of the lower limbs. Polio may also be witnessed in drawings from ancient Egypt. In addition, small pox caused by a virus that is now eradicated from the world also has a significant role in history of S. and Central America.Virology – the st
Solar Energy
Sunday, 19 May 2013
The Basics:
Solar energy technologies convert the sun’s light into usable electricity or heat. Solar energy systems can be divided into two major categories: photovoltaic and thermal. Photovoltaic cells produce electricity directly, while solar thermal systems produce heat for buildings, industrial processes or domestic hot water. Thermal sy
Robotics
Saturday, 18 May 2013
Robotics:
Although the science of robotics only came about in the 20th century, the history of human-invented automation has a much lengthier past. In fact, the ancient Greek engineer Hero of Alexandria, produced two texts, Pneumatica and Automata, that testify to the existence of hundreds of different kinds of “wonder” machines capable of au
Super Computer
Saturday, 18 May 2013
SUPER COMPUTER:
Supercomputing is all about pushing out the leading edge of computer speed and performance. The sports metaphors that arise as research sites compete to create the fastest supercomputer sometimes obscure the goal of crunching numbers that had previously been uncrunchable -- and thereby providing information that had previous
Flying Cars
Saturday, 18 May 2013
FLYING CARS:
Just a decade and a half after the Wright Brothers took off in their airplane over the plains of Kitty Hawk, N.C., in 1903, other pioneering men began chasing the dream of a flying car. There was even one attempt in the 18th century to develop a gliding horse cart, which, to no great surprise, failed. There are nearl
Aeronautical Engineering
Saturday, 18 May 2013
Aeronautical engineering:
The roots of aeronautical engineering can be traced to the early days of mechanical engineering, to inventors’ concepts, and to the initial studies of aerodynamics, a branch of theoretical physics. The earliest sketches of flight vehicles were drawn by Leonardo da Vinci, who suggested two ideas for sustentat
Gasoline
Thursday, 16 May 2013
The First Oil Well Was Dug Just Before the Civil War
Edwin Drake dug the first oil well in 1859 and distilled the petroleum to produce kerosene for lighting. Drake had no use for the gasoline or other products, so he discarded them. It wasn't until 1892 with the invention of the automobile that gasoline was recognized as a valuable fuel. By 19
Generators
Thursday, 16 May 2013
Today, everybody is familiar with electricity. Let's say, almost everybody uses electricity as a ready-for-use energy that is provided in a clean way. This is the result of long research and engineering work which can be traced back for centuries. The first generators of electricity were not electrodynamic as today's machines, but they were base
hacking
Wednesday, 15 May 2013
Hacking's History :
From phone phreaks to Web attacks, hacking has been a part of computing for 40 years.
Hacking has been around pretty much since the development of the first electronic computers. Here are some of the key events in the last four decades of hacking.
1960sThe Dawn of Hacking
The first computer hackers emerge at MIT. They borrow their name from a term to describe members of a model train group at the school who "hack" the electric trains, tracks, and switches to make them perform faster and differently. A few of t
