Monday, October 26, 2009

Annotation

www.about.com - tells me the history of the vacuum cleaner.

www.wikipedia.org -lots of the facts about the vacuum cleaner.

www.geyservac.com - tips on the vacuum cleaner.

www.ideafinder.com -the story of the vacuum cleaner.

www.gizmohighway.com - back in the day how the vacuum cleaner was used.




The vacuum cleaner has to be one of the greatest inventions for housewives ever. You can live without a dishwasher, and many do, you can get by without a clothes dryer (although I put the washing machine right up there with the vacuum cleaner), but if you don't have a vacuum cleaner, and you have carpet, you are in trouble.

In the old days, before the vacuum cleaner was invented, a home's rugs and carpet were taken outside, hung over a line, and beaten until they cried uncle.

While this method was most likely very good exercise, I can see how it would easily cut into one's shopping or snoozing time. Therefore: All Praise the Vacuum Cleane






Definitions of cleaning: The act of making
something clean; "he gave his shoes a
good cleaning" Cleanliness
is the absence of dirt, including dust,
stains and bad smells.
In more recent times, since the germ
theory of disease,
it has also come to mean an absence
of germs and other hazardous materials.
It can apply to humans, animals, clothing,
eating utensils, plates, pans, cups, etc.,
food, other movable objects,
floors, windows, walls, toilets, etc.
Any procedure that removes
corrosion, unattractive
toning, etc. such as dipping or rubbing
with abrasive materials.
The organizer takes care of the general
cleaning of the exhibition area..
A vacuum cleaner is a device
that uses an air
pump to create a vacuum to suck up dust
and dirt, usually from
carpeted floors.
Most homes with carpeted
floors possess a
domestic model for cleaning.
The dirt is collected by a filtering
system or a cyclone for later disposal.

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Thursday, October 15, 2009

NHD

My NHD project is on Vacuum Cleaner.

In 1876, Melville Bissell of Grand Rapids, Michigan created a vacuum cleaner for his wife, Anna, to clean up sawdust in carpeting. Shortly after, Bissell Carpet Sweepers were born. After Melville died unexpectedly in 1889, Anna took control of the company and was one of the most powerful businesswomen of the day.In 1899 the first motor-driven vacuum cleaner was invented by John Thurman.

Post-World War II

For many years after their introduction, vacuum cleaners remained a luxury item; but after World War II they became common among the middle classes. They tend to be more common in Western countries because, in most parts of the world, wall-to-wall carpeting is uncommon and homes have tile or hardwood floors, which are easily swept, wiped, or mopped.

A Dyson DC07 upright Cyclonic vacuum cleaner using centrifugal force to separate dust and particles from the air flowing through the cylindrical collection vessel.

Vacuum cleaners working on the cyclone principle became popular in the 1990s, although some companies (notably Filter Queen and Regina) have been making vacuum cleaners with cyclonic action since 1928. Modern cyclonic cleaners were adapted from industrial cyclonic separators by British designer James Dyson in 1985. He launched his cyclone cleaner first in Japan in the 1980s at a cost of about US$1,800 and later the Dyson DC01 upright in the UK in 1993 for £200. It was expected that people would not buy a vacuum cleaner at twice the price of a normal cleaner, but it later became the most popular cleaner in the UK.

Cyclonic cleaners do not use bags: instead, the dust collects in a detachable, cylindrical collection vessel. Air and dust are blown at high speed into the collection vessel at a direction tangential to the vessel wall, creating a vortex. The dust particles and other debris move to the outside of the vessel by centrifugal force, where they fall because of gravity, and clean air from the center of the vortex is expelled from the machine after passing through a number of successively finer filters at the top of the container. The first filter is intended to trap particles which could damage the subsequent filters that remove fine dust particles. The filters must regularly be cleaned or replaced to ensure that the machine continues to perform efficiently. Since Dyson, several other companies have introduced cyclone models, including Hoover, and the cheapest models are no more expensive than a conventional cleaner.

In early 2000 several companies developed robotic "vacuum" cleaners. Some examples are Roomba, Robomaxx, Trilobite and FloorBot. These machines propel themselves in patterns across a floor, cleaning surface dust and debris into their dustbin. They usually can navigate around furniture and find their recharging stations. Most robotic "vacuum" cleaners are designed for home use, although there are more capable models for operation in offices, hotels, hospitals, etc. Some such as the Roomba are equipped with an impeller motor to create an actual vacuum.[2][3] By the end of 2003 about 570,000 units were sold worldwide.[citation needed]

In 2004 a British company released Airider, a hovering vacuum cleaner that floats on a cushion of air. It is claimed to be light weight and easier to maneuver (compared to using wheels), although it is not the first vacuum cleaner to do this—the Hoover Constellation predated it by at least 35 years.

There is a recorded example of a 1930s Electrolux vacuum cleaner surviving in use for over 70 years, finally breaking in 2008.[4]

[edit]
Vacuum Cleaner gave house wifes a better way to clean there carpets and more time to do other things like shop and buy things.

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Friday, October 2, 2009

NHD

I am doing my project on BAND-AIDS.

Im going band aids because people need to keep clean and stay clean.

Earle dickson-Created the first BAND-AID in 1921 because he's wife kept cutting her finger in the kitchen so he took gauze and attached it to the center of a piece of tape, and then covered the product with crinoline to keep it sterile.

BAND-AIDS ARE USED TO COVER UP ANY CUTS AND BRUSES.

HERE ARE SOME OF THE SITES I'VE BEEN TO:

http://inventors.about.com/od/bstartinventions/a/bandaid.htm
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