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December 10, 2018

Bicycle With An Unique Security System

A bicycle, but most time it is just called a bike, is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist.

Bicycles were introduced in the 19th century in Europe and, as of 2003, number more than a billion worldwide, twice as many as automobiles. They are the principal means of transportation in many different regions.

They also provide a popular form of recreation, and have been adapted for use as children’s toys, general fitness, military and police applications, courier services, and bicycle racing.

The basic shape and configuration of a typical upright, or safety bicycle, has changed little since the first chain-driven model was developed around 1885.

But many details have been improved, especially since the advent of modern materials and computer-aided design. These have allowed for a proliferation of specialized designs for many types of cycling.

The bicycle’s invention has had an enormous effect on society, both in terms of culture and of advancing modern industrial methods. Several components that eventually played a key role in the development of the automobile were initially invented for use in the bicycle, including ball bearings, pneumatic tires, chain-driven sprockets, and tension-spoked wheels.

The Difference Between 1977 Hobbit And 2013 Hobbit

Hobbits are a fictional humanoid race, and they are easily recognizable by their height, all of the hobbits are shorter than humans, and by their large feet.

Hobbits first appeared in the novel The Hobbit, in which the main protagonist, Bilbo Baggins, is the titular hobbit. The novel, The Lord of the Rings, includes more Hobbits as major characters, Frodo Baggins, Samwise Gamgee, Peregrin Took and Meriadoc Brandybuck, as well as several other minor hobbit characters. Hobbits are also briefly mentioned in The Silmarillion and Unfinished Tales.

According to the author in the prologue to The Lord of the Rings, Hobbits are “relatives” of the race of Men. Elsewhere Tolkien describes Hobbits as a “variety” or separate “branch” of humans. Within the story, Hobbits and other races seem aware of the similarities.

However, within the story, Hobbits considered themselves a separate people. At the time of the events in The Lord of the Rings, Hobbits lived in the Shire and in Bree in the north west of Middle-earth, though by the end, some had moved out to the Tower Hills and to Gondor and Rohan.

Shoes With Nearly Indestructible Heels

A heel is the projection at the back of a shoe which rests below the heel bone. The shoe heel is used to improve the balance of the shoe, increase the height of the person who is wearing them, alter posture or other decorative purposes.

Sometimes raised, the high heel is common to a form of shoe often worn by women, but rarely by men too. High heels are not a modern invention. Rather, they enjoy a rich and varied history, for both men as well as women. Controversy exists over when high heels were first invented, but the consensus is that heels were worn by both men and women throughout the world for many centuries and for a variety of reasons.

Although high heeled shoes are depicted in ancient Egyptian murals on tombs and temples, the earliest recorded instance of men or women wearing an elevated shoe comes from Hellenic times.

It has been commonly stated that the first instance of the wear of high heels involved the 1533 marriage between Catherine de’ Medici with the Duke of Orleans. She wore heels made in Florence for her wedding, and as a result, Italian high heels became the norm for ladies of the Duke’s court in France. Unfortunately, this reference may be apocryphal, as the development of heels did not begin to come about until the late 1580s, based on iconographic evidence and extant pieces.

Mary Tudor, another short monarch, wore heels as high as possible. From this period until the early 19th century, high heels were frequently in vogue for both sexes.

Shower That Allows You To Sleep While Taking A Shower

Designs for shower facilities vary by location and purpose. There are free-standing showers, but also showers which are integrated into a bathtub. Showers are separated from the surrounding area through watertight curtains (shower curtain), sliding doors, or folding doors, in order to protect the space from spraying water. Showers with a level entry wet room are becoming very popular, especially due to improvements in waterproofing systems and prefabricated components. Best practice requires a waterproofing material to cover the walls and floor of the shower area that are then covered with tile, or in some countries with a sheet material like vinyl.
Places such as a swimming pool, a locker room, or a military facility, have multiple showers. There may be communal shower rooms without divisions, or shower stalls (typically open at the top.)
A shower head is a perforated nozzle that distributes the water over a large solid angle at point of use, generally overhead of the bather. Thus less water than full immersion can be used to wet the same area. All residential and most commercial shower heads sold in the USA must flow less than or equal to 9.5 liters per minute (2.5 gallons per minute) per the Department of Energy ruling 10 CFR 430. Low flow shower heads, less than or equal 7.6 liters per minute (2.0 gallon per minute), can use water more efficiently by aerating the water stream, altering nozzles through advanced flow principles or by high speed oscillation of the spray stream.


Creative Pendant Lamps That Are Made By Gluing Vintage Books

When writing systems were invented in ancient civilizations, nearly everything that could be written upon—stone, clay, tree bark, metal sheets—was used for writing. The study of such inscriptions forms a major part of history. The study of inscriptions is known as epigraphy. Alphabetic writing emerged in Egypt about 5,000 years ago. The Ancient Egyptians would often write on papyrus, a plant grown along the Nile River. At first the words were not separated from each other (scriptural continua) and there was no punctuation. Texts were written from right to left, left to right, and even so that alternate lines read in opposite directions. The technical term for this type of writing is ‘boustrophedon,’ which means literally ‘ox-turning’ for the way a farmer drives an ox to plough his fields.
Papyrus, a thick paper-like material made by weaving the stems of the papyrus plant, then pounding the woven sheet with a hammer-like tool, was used for writing in Ancient Egypt, perhaps as early as the First Dynasty, although the first evidence is from the account books of King Nefertiti Kakai of the Fifth Dynasty (about 2400 BC). Papyrus sheets were glued together to form a scroll. Tree bark such as lime (Latin liber, from which also comes library) and other materials were also used.




Calendar That Allows You To Have Fun While Checking Dates

A calendar is a system of organizing days for social, religious, commercial, or administrative purposes. This is done by giving names to periods of time, typically days, weeks, months, and years. The name given to each day is known as a date. Periods in a calendar (such as years and months) are usually, though not necessarily, synchronized with the cycle of the sun or the moon. Many civilizations and societies have devised a calendar, usually derived from other calendars on which they model their systems, suited to their particular needs.
A calendar is also a physical device (often paper). This is the most common usage of the word. Other similar types of calendars can include computerized systems, which can be set to remind the user of upcoming events and appointments.
A calendar can also mean a list of planned events, such as a court calendar.
The English word calendar is derived from the Latin word kalendae, which was the Latin name of the first day of every month.
A full calendar system has a different calendar date for every day. Thus the week cycle is by itself not a full calendar system; neither is a system to name the days within a year without a system for identifying the years.
The simplest calendar system just counts time periods from a reference date. This applies for the Julian day. Virtually the only possible variation is using a different reference date, in particular one less distant in the past to make the numbers smaller. Computations in these systems are just a matter of addition and subtraction.




New Mini USB Cameras From Japan

A camera is a device that records and stores images. These images may be still photographs or moving images such as videos or movies. The term camera comes from the camera obscura (Latin for “dark chamber”), an early mechanism for projecting images. The modern camera evolved from the camera obscura.
Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. A majority of cameras have a lens positioned in front of the camera’s opening to gather the incoming light and focus all or part of the image on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture. Most 20th century cameras used photographic film as a recording surface, while the majority of new ones now use an electronic image sensor.
The still camera takes one photo each time the user presses the shutter button. A typical movie camera continuously takes 24film frames per second as long as the user holds down the shutter button, or until the shutter button is pressed a second time.
From its inception, the camera has been instrumental in the recording of still images from then-present surroundings, and further modifications led to the development of motion picture sequences in the late 19th century.




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