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The user guide engraved into a model of the Antikythera Mechanism. User guides have been found with ancient devices. One example is the Antikythera Mechanism, [1] a 2,000 year old Greek analogue computer that was found off the coast of the Greek island Antikythera in the year 1900.
Smog towers or smog free towers (see below for other names) are structures designed as large-scale air purifiers to reduce air pollution particles . This approach to the problem of urban air pollution involves air filtration and removal of suspended mechanical particulates such as soot and requires energy or power.
An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .
These techniques prevent the compounds from reacting with components of air, usually water and oxygen; less commonly carbon dioxide and nitrogen. A common theme among these techniques is the use of a fine (10 0 –10 −3 Torr) or high (10 −3 –10 −6 Torr) vacuum to remove air, and the use of an inert gas: preferably argon, but often nitrogen.
In 1983 it launched its own PC, the Tulip PC. To achieve 100% compatibility it simply copied the IBM PC, including the BIOS. IBM sued, and after years of litigation, Tulip and IBM settled out of court for an undisclosed amount in 1989. It was listed on the Amsterdam Stock Exchange in 1984. In 1987, Compudata changed its name to Tulip Computers.
Tulip mania (Dutch: tulpenmanie) was a period during the Dutch Golden Age when contract prices for some bulbs of the recently introduced and fashionable tulip reached extraordinarily high levels. The major acceleration started in 1634 and then dramatically collapsed in February 1637.
Airless tires, non-pneumatic tires (NPT), or flat-free tires are tires that are not supported by air pressure. [1] [2] [3] They can be used on small vehicles such as ride-on lawn mowers and motorized golf carts. They also are used on heavy equipment required to operate on sites where risk of tire punctures is high.
Freedom Air's leased Boeing 757-200 at Hamilton Airport, used on its inaugural flight in 1995 A Freedom Air Airbus A320-200 at Christchurch Airport in 2006. The airline was established in 1995 as a response to the commencement of discount services between Australia and New Zealand by Kiwi Travel International Airlines [2] and started operations on 8 December 1995 with a single Boeing 757-200.