Friday, July 18, 2008

Types of mummies

The best-known mummies are those that have been intentionally embalmed with the exact reason of preservation, mainly those in ancient Egypt. Egyptian civilization believed the body was home in the afterlife to a person's Ka, which without it would be destined to everlasting wandering. In Egypt, the bodies' abdomens were opened and all organs, except for the heart, were removed and preserved in Canopic jars. The brain, thought to be useless, was pulled out through the nose with hooks, then discarded. It was also drained through the nose after being liquified with the same hooks.
The emptied body was then covered in natron, to speed up the process of dryness and prevent decay. Often finger and toe protectors were placed over the mummies fingers and toes to prevent splintering. They were wrapped with strips of white linen that protected the body from being spoiled. After that, they were wrapped in a sheet of canvas to further protect them. Many sacred charms and amulets were placed in and around the mummy and the wrappings. This was meant to protect the mummy from harm and to give good luck to the Ka of the mummy. In China, preserved corpses have been recovered from underwater cypress coffins packed with medicinal herbs.

Thursday, July 03, 2008


A laptop computer or simply laptop (also notebook computer, notebook and notepad) is a little mobile computer, classically weighing 3-12 pounds (around 1.3 to 5.4 kilograms), though older laptops may weigh more.

Laptops generally run on a single main battery or from an external AC/DC adapter that charges the battery while also supplying power to the computer itself even in the event of a power failure. This very powerful main battery should not be puzzled with smaller 3 volt cell battery that is built in nearly every computer. This small battery is intended to run the real-time clock and backup BIOS configuration into the CMOS memory during the time the computer is not powered on and/or is not connected to the external power.

Laptops contain components that are similar to their desktop counterparts and perform the same functions, although are miniaturized and optimized for mobile use and efficient power consumption, although typically less powerful for the same price. Laptops generally have liquid crystal displays and most of them use different memory modules for their random access memory (RAM), for instance, SO-DIMM in lieu of the larger DIMMs. In addition to a built-in keyboard, they may utilize a touchpad (also known as a trackpad) or a pointing stick for input, while an external keyboard or mouse can usually be attached.