The Biggest n Meanest Machine in the World

 

The Bagger 288, also known as the Excavator 288, is the largest digging machine in the world. It was built by the German company Krupp for the energy and mining firm Rheinbraun. When its construction was completed in 1978, Bagger 288 superseded NASA's Crawler-Transporter, used to carry the Space Shuttle and Apollo Saturn V launch vehicle, as the largest tracked vehicle in the world at 13,500 tons.
Some facts:

 
* The machine is up to 220 m (721 ft) long and approximately 96 m (315 ft) high
* It weighs 13,500 tons
* It can excavate 240,000 tons of coal or 240,000 cubic meters of overburden daily - the equivalent of a football field dug to 30 m (98 ft) deep.
* The large surface area of the tracks means the ground pressure of the Bagger 288 is very small (17.1 N/cm2 or 24.8 psi). This allows the excavator to travel over gravel, earth and even grass without leaving a significant track.

 

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License model :
Free
Limitations
Not available
Operating systems
Windows 7, Windows 2003, Windows Me, Windows 98, Windows 95, Windows 3.x, Windows 2000, Windows Vista, Windows NT, Windows XP, Windows Server 2008
Additional requirements
Not available .
Publisher's description

This eerily realistic blue screen prank allows you to prank your friends with effectiveness. This C++-based program is simple to use. Just open it and press Alt-Enter to trigger fullscreen. Maybe you could activate this program on every computer at a school, library or office to simulate an entire system crash! To exit, press Escape.

We Already Had Electricity 2000 Years Ago?

 If you thought electric bulbs and batteries were modern European inventions, here is something to put that fact to question! A 1936 excavation of some 2000-years-old ruins in an ancient Baghdad village unearthed a small yellow clay vase about 6 inches in height. It had a copper-sheet cylinder lining within it that measured 5 x 1.5 inches.
A soldering material (most probably lead and tin) was used at the top edge of this mysterious cylinder, bearing remarkable affinity to modern solder alloy. A punched-in copper disk at the base of this cylinder was sealed with asphalt or bitumen. A similar asphalt layer also found at the top end held together an iron rod, bearing acidic corrosion marks inserted within the cylinder.

 Ever since its recovery, several possibilities have been suggested by experts. Wilhelm König, the German archaeologist brought forth a startling idea that the clay pot could well be a form of electric battery. Following his theory, a Massachusetts based engineer Willard F.M. Gray created a model of this battery in 1940, filled it with copper sulfate solution and proved that it could produce electricity.

In 1970, the German Egyptologist Arne Eggebrecht followed in the footsteps of Gray. He supplanted the copper sulfate solution with fresh grape juice to generate about 0.87V of electricity for gold plating a silver statue. These experiments proved beyond doubt that 1,800 years old civilizations knew how to produce and utilize electricity by means of an acidic agent.

The path breaking conclusions of Konig lost its significance in the turmoil of the World War II. His European co-excavators had raised objection to his theories since the presence of batteries at a predominantly religious age seemed an unlikely possibility. However, soon a set of ‘ancient batteries’ were unearthed from the same sites in Iraq, inspiring a score of baffled propositions.

While some speculated that the electrochemical set up of the ‘batteries’ was meant to produce electricity, others refuted this claim. A series of thinly electroplated objects were found by König in Baghdad that probably used these cells though others opined that these were mainly fire-gilded. Demonstrative experiments have proved that though this battery uses a very primitive mechanism, it could plate a small object with a micrometer thick gold coat over two hours.
However, the electroplating theory was never unanimously accepted and other possible usages were suggested for these batteries. Paul Keyser hinted that the mild electric shock produced by using an iron bar in vinegar was used by healers or priests for electro-acupuncture. 

Currently the Baghdad batteries are preserved as valuable pieces of curios in the Baghdad Museum. The dating of these unique clay vases revealed them to be belonging to the Parthian occupation era, somewhere between 248 BCE and 226 CE, although disputed. The Parthian were predominantly a warrior clan and not given to scientific sophistications. Dr St John Simpson of the British Museum attributes the Baghdad batteries to Sassania.