Emerald Necklace for emerald necklace jewelry

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For the Emerald Necklace of Greater Cleveland, see Cleveland Metroparks.

Boston Public Garden, the second "jewel" of the Emerald Necklace
The Emerald Necklace consists of an 1,100-acre (4.5km2) chain of parks linked by parkways and waterways in Boston and Brookline, Massachusetts. The Emerald Necklace includes:
Boston Common
Boston Public Garden
Commonwealth Avenue Mall
Back Bay Fens
The Fenway
The Riverway
Olmsted Park
Jamaica Pond
The Jamaicaway
Arnold Arboretum
The Arborway
Franklin Park
The parks are almost contiguous with one another and are irregularly-shaped according to whatever land was available at the time of each park area's foundation. From Boston Common to Franklin Park it is approximately seven miles by foot or bicycle through the parks.
Several components of the Emerald Necklace pre-date the plan to unite them. Some links of the Emerald Necklace not only offer an opportunity for recreation in a wooded environment, but are also ecologically-important urban wilds that provide nesting places for migratory birds and improve the air quality of the city.
Contents
1 History
2 Shape
3 Jurisdiction
4 Recent improvement
5 Future plans
6 The Conservancy
7 Other areas
8 Sites along the Necklace
9 References
10 External links
//
History

Ward's Pond in Olmsted Park
This linear system of parks and parkways was designed by Frederick Law Olmsted to connect the Boston Common (dating from the colonial period) and Public Garden (1837) to the great country estate known as Franklin Park.
The project began around 1878 with the effort to clean up and control the marshy area which became the Back Bay and the Fens. In 1880, Olmsted proposed that the Muddy River, which flowed from Jamaica Pond into the Fens, be included in the park plan. The current was dredged into a winding stream and directed into the Charles River. The corridor encompassing the river became a linear park. Olmsted's vision of a linear park of walking paths along a gentle stream connecting numerous small lakes was complete by the turn of the century.
Shape
As implied by the name "Emerald Necklace," these parks do not proceed in a straight line but rather form a sort of "L" shape. The Emerald Necklace begins near Boston's Downtown Crossing, proceeds along the Boston/Brookline border, then curves back into Jamaica Plain. At the south border of Arnold Arboretum, at the point most distant from its beginning, the Emerald Necklace is in Roslindale.
Olmsted's original plan called for a "U" shaped necklace which terminated at Boston Harbor. This final link, The Dorchesterway, was never realized.
Jurisdiction
Arnold Arboretum is leased to and managed by Harvard University.
The west banks of Olmsted Park and the Riverway are under the jurisdiction of Brookline.
The rest of the Emerald Necklace is maintained by the City of Boston and the Department of Conservation and Recreation.
Recent improvement

Fens from footbridge opposite Forsyth Dental building, looking north. Prudential building in background
Over the past decade, almost $60 million in capital expenditures for parks and waterway improvements have been made in the Emerald Necklace by the City of Boston and the Town of Brookline. These efforts have included improved pathways, plantings and signage, bridge repairs, and the restoration of boardwalks and buildings. In some areas (especially Franklin Park) these efforts have only begun to address the over 50 years of neglect the Emerald Necklace has suffered.
Future plans
The Emerald Necklace Parks Master Plan was completed in 1989, and updated in 2001.
The parks have long been subject to flooding from the Muddy River. The Muddy River Restoration Project will dredge contaminated sediments and implement other major structural improvements, unburying the river and improving its integrity, appearance, and flood control capabilities.
The Conservancy
The Emerald Necklace Conservancy was established in 1996 to support and build upon public sector initiatives. A not-for-profit organization, the Emerald Necklace Conservancy is a public-private partnership composed of community, business government and institutional representatives, residential neighbors, representatives of Necklace-related associations and interested citizens.
Other areas
There are a few other green areas in the vicinity of the Emerald Necklace that are never considered a part of it but are worth mentioning:
Charles River Esplanade is not contiguous with the rest of the Necklace but is not far from Commonwealth Ave and is a scenic greenspace.
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Embroidery for chinese cross stitch

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Traditional embroidery in chain stitch on a Kazakh rug, contemporary.
Embroidery is the art or handicraft of decorating fabric or other materials with needle and thread or yarn. Embroidery may also incorporate other materials such as metal strips, pearls, beads, quills, and sequins.
A characteristic of embroidery is that the basic techniques or stitches of the earliest workhain stitch, buttonhole or blanket stitch, running stitch, satin stitch, cross stitchemain the fundamental techniques of hand embroidery today.
Machine embroidery, arising in the early stages of the Industrial Revolution, mimics hand embroidery, especially in the use of chain stitches, but the "satin stitch" and hemming stitches of machine work rely on the use of multiple threads and resemble hand work in their appearance, not their construction.
Contents
1 Origins
2 Classification
3 Materials
4 Machine
5 Notes
6 References
7 External links
//
Origins

Detail of an embroidered silk gauze ritual garment. Rows of even, round chain stitches are used both for outline and to fill in color. From a 4th century BC, Zhou era tomb at Mashan, Hubei province, China.
The origins of embroidery are lost in time, but examples survive from ancient Egypt, Iron Age Northern Europe and Zhou Dynasty China. Examples of surviving Chinese chain stitch embroidery worked in silk thread have been dated to the Warring States period (5th-3rd century BC).
The process used to tailor, patch, mend and reinforce cloth fostered the development of sewing techniques, and the decorative possibilities of sewing led to the art of embroidery. In a garment from Migration period Sweden, roughly 300700 CE, the edges of bands of trimming are reinforced with running stitch, back stitch, stem stitch, tailor's buttonhole stitch, and whipstitching, but it is uncertain whether this work simply reinforces the seams or should be interpreted as decorative embroidery.
The remarkable stability of basic embroidery stitches has been noted:
It is a striking fact that in the development of embroidery ... there are no changes of materials or techniques which can be felt or interpreted as advances from a primitive to a later, more refined stage. On the other hand, we often find in early works a technical accomplishment and high standard of craftsmanship rarely attained in later times.

English cope, late 15th or early 16th century. Silk velvet embroidered with silk and gold threads, closely laid and couched. An example of fine English embroidery. Art Institute of Chicago textile collection.
Elaborately embroidered clothing, religious objects, and household items have been a mark of wealth and status in many cultures including ancient Persia, India, China, Japan, Byzantium, and medieval and Baroque Europe. Traditional folk techniques are passed from generation to generation in cultures as diverse as northern Vietnam, Mexico, and eastern Europe. Professional workshops and guilds arose in medieval England. The output of these workshops, called Opus Anglicanum or "English work," was famous throughout Europe. The manufacture of machine-made embroideries in St. Gallen in eastern Switzerland flourished in the latter half of the 19th century.
Classification

Japanese free embroidery in silk and metal threads, contemporary.
Embroidery can be classified according to whether the design is stitched on top of or through the foundation fabric, and by the relationship of stitch placement to the fabric.
In free embroidery, designs are applied without regard to the weave of the underlying fabric. Examples include crewel and traditional Chinese and Japanese embroidery.

Cross-stitch counted-thread embroidery. Tea-cloth, Hungary, mid-20th century
Counted-thread embroidery patterns are created by making stitches over a predetermined number of threads in the foundation fabric. Counted-thread embroidery is more easily worked on an even-weave foundation fabric such as embroidery canvas, aida cloth, or specially woven cotton and linen fabrics although non-evenweave linen is used as well. Examples include needlepoint and some forms of blackwork embroidery.

Hardanger, a whitework technique. Contemporary.
In canvas work threads are stitched through a fabric mesh to create a dense pattern that completely covers the foundation fabric. Traditional canvas work such as bargello is a counted-thread technique. Since the 19th century, printed and hand painted canvases where the painted or printed image serves as color-guide have eliminated the need for counting threads. These are particularly suited to pictorial rather than geometric designs deriving from the Berlin wool work craze of the early 19th century.
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Pixel density for 3 Inch LCD

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(Redirected from Pixels per inch)
"Ppi" redirects here. For other uses, see PPI.
Pixels per inch (PPI) or pixel density is a measurement of the resolution of devices in various contexts; typically computer displays, image scanners or digital camera image sensors.
PPI can also describe the resolution, in pixels, of an image to be printed within a specified space. For instance, a 100x100-pixel image that is printed in a 1-inch square could be said to have 100 pixels per inch, regardless of the printer's DPI capability. Used in this way, the measurement is only meaningful when printing an image. Good quality photographs usually require 300 pixels per inch when printed.[citation needed]

The square shown above is 200 pixels by 200 pixels. To determine a monitor's PPI, measure the width and height, in inches, of the square as displayed on a given monitor. Dividing 200 by the measured width or height gives the monitor's horizontal or vertical PPI, respectively, at the current screen resolution.
Contents
1 Computer displays
1.1 Calculation of monitor PPI
2 Scanners and cameras
3 References
4 See also
5 External links
//
Computer displays
The PPI of a computer display is related to the size of the display in inches and the total number of pixels in the horizontal and vertical directions. This measurement is often referred to as dots per inch, though that measurement more accurately refers to the resolution of a computer printer.
For example, a 15 inch display, whose dimensions work out to 12 inches wide by 9 inches high, capable of a maximum 1024 by 768 (or XGA) pixel resolution can display around 85 PPI in both the horizontal and vertical directions. This figure is determined by dividing width (or height) of the display area in pixels, by width (or height) of the display area in inches. It is possible for a display's horizontal and vertical PPI measurements to be different. The apparent PPI of a monitor depends upon the screen resolution (that is, number of pixels) and the size of the screen in use; a monitor in 800 by 600 mode has a lower PPI than the same monitor at 1024 by 768 mode. The dot pitch of a computer display determines the absolute limit of possible pixel density.
Typical circa-2000 cathode ray tube or LCD computer displays range from 67 to 130 PPI. The IBM T220/T221 LCD monitors marketed from 2001 to 2005 reached 204 PPI. The Toshiba Port G900 Windows Mobile 6 Professional phone, launched in mid 2007, came with a 3" WVGA LCD having "print-quality" pixel density of 313 PPI. In January 2008, Kopin Corp. announced a 0.44" SVGA LCD with an astonishing pixel density of 2272 PPI. According to the manufacturer, the LCD was designed to be optically magnified to yield a vivid image and therefore expected to find use in high-resolution eye-wear devices. It has been observed that the unaided human eye can generally not differentiate detail beyond 300 PPI, however this figure depends both on the distance between viewer and image, and their visual acuity. Modern displays having upwards of 300 PPI pixel densities, combined with their non-reflective, bright, evenly lit and interactive display areas may have vastly more appeal to users than the best prints available on paper. Such high pixel density display technologies would make supersampled antialiasing obsolete, enable true WYSIWYG graphics and further, pave the way towards the elusive "paperless office" era. For perspective, such a device at 15" screen size would have to display more than four Full HD screens (or WQUXGA resolution).
The pixel density is useful for calibrating a monitor with a printer; software can use the PPI measurement to display a document at "actual size" on the screen.
Calculation of monitor PPI
Theoretically, PPI can be calculated from knowing diagonal size of screen in inches and resolution in pixels (width and height). This can be done in two steps:
1. Calculate diagonal resolution in pixels using the Pythagorean theorem:

2. Calculate PPI:

where
dp is diagonal resolution in pixels,
wp is width resolution in pixels,
hp is height resolution in pixels and
di is diagonal size in inches. (This is the number advertised as the size of the display.)
For example, for a 20" screen with a 1680x1050 resolution, we get a 99.06 PPI.
Note that these calculations are not very precise. Frequently, screens advertised as "X inch screen" can have their real physical dimensions of viewable area differ, for example:
HP LP2065 20" monitor 20.1" viewable area
Also note, that this is not the method followed on List of displays by pixel density, where the total screen area (length*width) is considered, instead of just diagonal length.
Scanners and cameras
"PPI" or "pixel density" may also be used to describe the resolution...(and so on) To get More information , you can visit some products about usb network cable, power screw driver, laser barcode scanner, babolat aeropro drive, buy lcd display, 8 tft lcd monitor, pulse rate monitor, advent headphones, refurbished car stereo, ethernet rj45, . The keyboard, keypad,Laptop Keyboard,notebook keyboard,key board,keyboards,keyboard for laptop products should be show more here!

Thomas Weld (cardinal) for clifford alarm system

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Thomas Cardinal Weld
Thomas Weld (22 January 1773 19 October 1837) was an English Roman Catholic and cardinal.
Life
Weld was born in London on 22 January 1773, was the eldest son of Thomas Weld of Lulworth Castle, Dorset, by his wife Mary, eldest daughter of Sir John Stanley Massey Stanley of Hooton, who belonged to the elder and Catholic branch of the Stanley family, now extinct.
He was educated at home under Charles Plowden. He supported religious communities that were driven into England by the French Revolution. He agreed with his father in giving the banished Jesuits the mansion of Stonyhurst. The Trappist nuns were received at Lulworth; while the Poor Clares from Gravelines and the Visitandines were also special objects of his bounty. George III, in his sojourns at Weymouth, used to visit Lulworth, and always expressed the greatest regard for the family.
On 14 June 1796 Weld married, at Ugbrooke, Lucy Bridget, second daughter of Thomas Clifford of Tixall, fourth son of Hugh, third Lord Clifford. Their only issue was Mary Lucy, born at Upwey, near Weymouth, on 31 January 1799. The loss of his wife at Clifton on 1 June 1815, and the subsequent marriage of his only child to her second cousin, Hugh Charles Clifford (afterwards seventh Baron Clifford), on 1 September 1818, left him at liberty to embrace the ecclesiastical state, and to renounce the family property to his next brother, Joseph Weld (see below). He placed himself under the direction of his old friend, the celebrated Abb Carron, and Mgr. Hyacinthe-Louis de Quen, Archbishop of Paris, ordained him priest on 7 April 1821.
On 20 June 1822 he began to assist the pastor of the Chelsea mission, and after some time he was removed to Hammersmith. The Holy See having nominated him coadjutor to Alexander Macdonell (17621840), Bishop of Kingston, Ontario, the ceremony of Weld's consecration as titular Bishop of Amyclae, a town in the Peloponnese, was performed at St. Edmund's College, Ware, by Bishop William Poynter on 6 August 1826.
Circumstances, however, delayed his departure for Canada. His daughter being in failing health, he accompanied her and her husband to Italy, and shortly after his arrival at Rome, Cardinal Alboni, on 19 January 1830, announced to him that Pope Pius VIII had decided to honour him with the purple. He was admitted into the College of Cardinals on 15 March 1830, and on this occasion a Latin ode was composed and published to Dominic Gregorj.
His daughter died at Palo on 15 May 1831, and was buried on 18 May in the church of Marcellus at Rome, from which he derived his title. On his elevation to the Sacred College he received assurances from persons of high influence and dignity in England that his nomination had excited no jealousy, but on the contrary had given general satisfaction. His apartments in the Odescalchi Palace were splendidly furnished, and periodically filled by the aristocracy of Rome, native and foreign, and by large numbers of his fellow-countrymen
He died on 19 April 1837, and his remains were deposited in the church of Santa Maria Aquiro. The funeral oration, delivered by Nicholas (afterwards Cardinal) Wiseman, has been published.
His brother, Joseph Weld (17771863), third son of Thomas Weld, was born on 27 January 1777. He received the exiled Royal family of France at Lulworth in August 1830, the king and his suite remaining there for some days, until their removal to Holyrood House. He was the owner of the "Alarm", "Arrow" and "Lulworth" yachts, which he navigated himself until very late in life, and, having a practical knowledge and a real liking for the sea, he was always very fortunate in the construction and sailing of his vessels. He died at Lulworth Castle on 19 October 1863.
Notes and references
^ Rome, 1830, 4to
^ Wiseman, Recollections of the Four Last Popes, 2nd edn., p. 246
^ London, 1837, 8vo
Sources
Categories: 1773 births | 1837 deaths | English cardinals | English Roman Catholic priests | People from Dorset
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Engineering and Science Education Program for dvd player automotive

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(Redirected from ESEP High Schools)
The Engineering and Science Education Program (ESEP) is a science and mathematics-oriented curriculum devised for high schools in the Philippines. The ESEP program is offered by specialized high schools, whether public or private, supervised by the Department of Education. Currently, there are 110 high schools offering the ESEP program, the majority being public.
Contents
1 Comparison between the ESEP, the RSHS Union and the PSHS System
2 Academic Programme
2.1 Philippine Science High School (PSHS) Core Curriculum
2.1.1 Electives
2.2 Regional Science High School Curriculum
2.3 Engineering and Science Education Program (ESEP) Curriculum
3 Other Programs
3.1 The Technical-Vocational Education Program (Tech-Voc/TVEP)
3.2 The Special Program for the Arts (SPA)
3.3 Special Program for Sports(SPS)
4 Special Science Grade School (SSGS)
5 References
//
Comparison between the ESEP, the RSHS Union and the PSHS System
All three types of science high schools in the Philippines (ESEP high schools, high schools in the Regional Science High School Union and the Philippine Science High School System) offer a curriculum placing importance in mathematics and the sciences, as well as research. It is noted though that the RSHS Union and the PSHS System have higher standards of science and mathematics education than ESEP high schools. Likewise, ESEP high schools and the RSHS Union are operated by Department of Education, while the PSHS system is operated by Department of Science and Technology.
In ESEP high schools, transfer students are permitted to enroll provided the student is coming from another ESEP high school, from an RSHS or from the PSHS System. In the Regional Science High School Union and the PSHS System, transfers are only allowed within their respective systems for incoming sophomores only. Students who wish to transfer from an ESEP high school to the RSHS or PSHS systems will not be admitted, although the reverse is permissible.
All three types of science high school also maintain different grading systems. ESEP high schools and the RSHS Union apply the standard grading system for high schools in the Philippines, while the PSHS System maintains a unique grading system using the 1.00-5.00 scale.
Academic Programme
Philippine Science High School (PSHS) Core Curriculum
Curriculum Year Level 1
Curriculum Year Level 2
Curriculum Year Level 3
Curriculum Year Level 4
Integrated Science
Introduction to Biology (Biology 1)
Advanced Biology 1(Biology 2)
Advanced Biology 2 (Biology 3)
Elementary Algebra (Mathematics 1)
Inorganic Chemistry Part 1 (Chemistry 1)
Inorganic Chemistry Part 2 (Chemistry 2)
Advanced Chemistry (Chemistry 3)
Communication Arts 1 (English 1)
General Physics (Physics 1)
Advanced Physics 1 (Physics 2)
Advanced Physics 2 (Physics 3)
Introduction to Computer Science (Computer Science 1)
Plane Geometry (Mathematics 2)
Advanced Algebra and Trigonometry (Mathematics 4)
Elementary Analysis (Mathematics 5)
Sining ng Komunikasyon (Filipino 1)
Advanced Algebra (Mathematics 3)
Software Project Planning (Computer Science 3)
Special Topics in Computer Science (Computer Science 4)
Philippine History & Government (Social Science 1)
Introduction to Programming (Computer Science 2)
Communication Arts, Asian Literature (English 3)
Communication Arts (American and European Literature) (English 4)
Introduction to Values Education (Values Education 1)
Communication Arts 2 (English 2)
Malikhaing Pagsulat (Filipino 3)
Panitikang Pilipino (Filipino 4)
Introduction to Values Education (Values Education 1)
Pagsusuri at Pagpapahalagang Pampanitikan (Filipino 2)
World History (Social Science 3)
Panitikang Pilipino (Filipino 4)
Physical Ed., Health & Music I (PEHM 1)
Asian Studies (Social Science 2)
Physical Education and Health III (PEH)
Economics (Social Science 4)
Art I & Drafting I (one semester each)
Values Development (Values Education 2)
Principles of Science/Technology Research (Research 1)
Physical Education and Health 4 (PEH 4), Preparatory Military Training (PMT)
Earth Science
P.E., Health, Music 2 (PEHM 2)
Experimental Science, Technology Research (Research 2)
Technology Preparation
Art II / Drafting II
Elective
Elective
Environmental Science / Technology Skills
Electives
Curriculum Year Level 3
Curriculum Year Level 4
Laboratory Techniques
Digital Design
Food Science
Visual Communication
Problem-Based Physics
Cell and Molecular Biology
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Space Electronics for electronic weighing machine

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Space Electronics LLC is a company based in Connecticut that specializes in mass properties measurement instruments.
Contents
1 History
1.1 1960s
1.2 1970s
1.3 1980s
1.4 1990s
1.5 2000s
2 See also
3 External links
//
History
Dick Boynton founded Space Electronics in 1959 while attending graduate courses at Yale University. The company existed in Dick's basement and garage in Yalesville, Connecticut. He later moved the company to a storefront in Meriden, Connecticut.
1960s
Space Electronics designed and built a variety of products including:
Flicker Fusion Tester to measure the human eye's response to pulsating light,
Wire Marker that painted colored bands on telephone wire as it passed through the extruding machine,
Antenna Drive responsible for aiming a large Yagi antenna used for astronomical research. The company made at least seven of these, and they were installed at NASA sites around the world,
Astronomical Position Computer, an analog computer that kept track of the positions of various planets and the sun. The computer also controlled the antenna drive.
Spectral Photometer, an optical/mechanical device that was attached to an astronomical telescope and analyzed the light coming from a single object.
Radiometer, an electronic device that analyzed the signal received by a radio telescope.
10,000 lb Rocket Thrust Stand to measure the various force components produced by a rocket motor when it was test fired on the ground. A built-in deadweight calibrator was used to assure its accuracy. The system was installed at Edwards Air Force Base in California .
2000 lb Gas Bearing Moment of Inertia Machine sold to NASA and installed in their facility in Greenbelt , MD.
8000 lb Gas Bearing Moment of Inertia Machine sold to a balancing machine manufacturer. They mounted it on top of one of their static balancers and sold it to their customer as a combination Center of Gravity-Moment of Inertia machine.
1970s
In the 1970s, Dick Boynton moved Space Electronics to office and manufacturing space in Wallingford , CT. At this location, they continued to design and sell new instruments including:
Unique Moment of Inertia machine. Dick received a patent for the basic design which suspends the instrument spindle from the middle of a long torsion rod which is fixed at its ends and held in tension. Both gas bearing (XKR series) and ball bearing (XR series) models were designed and built for test parts weighing from 0.001 lb to 250 lb.
Special high-accuracy gas-bearing Moment of Inertia for testing a kinetic kill vehicle,
The first static Center of Gravity measuring machine: accuracy was 0.0005 inch for a 40 lb part,
3000 lb and 8,000 lb gas bearing Moment of Inertia machines,
1000 lb spherical gas bearing Center of Gravity and Moment of Inertia machine,
1000 lb vertical axis rocket thrust stand for a rotating part,
Early gas bearing Center of Gravity machines: Several of these were used for balancing gimbaled seekers,
Vibration meters that included frequency analysis,
Modifications and improvements to a high-level low-frequency sound test facility installed at Wright-Patterson Air Force Base. This was originally intended for Apollo astronaut testing and was ultimately used for calibrating microphones for airport sound level studies, air bag deployment studies and pilot efficiency studies.
As the design of the center of gravity and moment of inertia machines evolved, Space Electronics started incorporating Hewlett-Packard calculators and desktop computers into mass properties measurement systems. These machines gradually became more automatic, and more sophisticated data reduction was built into the software.
1980s
In the 1980s, Dick moved Space Electronics to Meriden , CT. At this location, the company developed:
The first 5000 lb spherical gas bearing Center of Gravity / Moment of Inertia machine,
A vertical-axis dynamic balancing machines in 300 lb to 2200 lb sizes,
An all-mechanical longitudinal center of gravity machine for live Patriot warheads
A wide range of Gimbal Balance Machines using force rebalance technology many of which incorporated weight correction software and closed loop control of the test part.
Many multiple-channel electrical test devices for both explosive and non-explosive test items,
Portable digital igniter circuit testers. After gaining approval by the US Navy, the tester was sold to installations throughout the world,
13,200 lb capacity gas bearing moment of inertia and center of gravity machine for NASDA, the Japanese space agency (now called JAXA),
Measurement stand to test the alignment of mounting shoes on air-to-air missiles,
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LED Throwie for coin cell batteries

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(Redirected from LED Throwies)

LED throwies
An LED throwie is a small LED attached to a coin battery and a rare earth magnet (usually with conductive epoxy or electrical tape), used for the purpose of creating non-destructive graffiti and light displays.
Contents
1 History
2 Modifications
3 See also
4 External links
5 References
//
History
LED Throwies were devised by James Powderly and Evan Roth working together at the Graffiti Research Lab during a fellowship at Eyebeam OpenLab in 2006. The technology, like everything from the OpenLab, is open source and in the public domain. LED Throwies were designed as a new kind of graffiti art to be used on ferromagnetic surfaces like steel. Part of GRL's original campaign involved distributing throwies to a group of people, who were then encouraged to throw them onto a metal sculpture called Alamo, located at Astor Place, Manhattan, New York City.
Modifications
The following are some of the modifications that have been applied to throwies:
Clay, or another sticky, putty-like substance has been added to create a "stick-anywhere" Throwie.
Throwies have been made with Velcro instead of, or in combination with, a magnet.
Adding an on/off switch or a pull tab can prolong battery life.
Flashing LEDs, effectively blinkies, can also improve battery life.
More than one LED can be arranged around the battery.
To achieve better light distribution, some have ground the top off of the LED so that the light is more diffused.
Photoresistors have been used to limit or turn off the circuit in the throwie when light shines on them, which can extend battery life dramatically.
Chirpies are another variation on the theme, incorporating a piezoelectric transducer and an alternating circuit, although this device is more controversial.[citation needed]
Magnets can be replaced by small piece of styrofoam sealed with wax, and throw into pools, bathtubs, or other enclosed water areas as Floaties. Use of Floaties in lakes, streams or oceans is strongly discouraged for environmental reasons; lithium batteries are prone to leakage in water; Floaties are more difficult to collect than Throwies; and marine animals may eat the Floaties.
Flyies are throwies carried as a payload on helium balloons.
LED-Ice spheres. A throwie and water in a balloon. Frozen overnight to get a outdoor light.
See also
Graffiti Research Lab
Graffiti
blinkies A manufactured version available for over 10 years now.
Battery sizes For size and voltages of coin cell batteries.
External links
Graffiti Research Lab
LED Throwies Tutorial on making LED Throwies
LED Hook-Up Tutorial For those new to working with LEDs
A tutorial on how to make more advanced LED graffiti: LED tags and figures using perspex and other light leading materials
Making LED throwies with things you already have
Youtube Video of throwies at work
LED Development Blog article about LED Throwies
GLOWiE LED Art Lights - manufactured throwies
References
^ Graffiti Research Lab. "LED Throwies". http://www.instructables.com/id/LED-Throwies/. Retrieved on 2008-01-25.
Categories: Consumer electronics | Graffiti and unauthorised signage | Light-emitting diodes
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Anaesthetic machine for co2 gas regulator

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An anaesthetic machine
The anaesthetic machine (or anesthesia machine in America) is used by anesthesiologists to support the administration of anaesthesia. The most common type of anaesthetic machine in use in the developed world is the continuous-flow anaesthetic machine, which is designed to provide an accurate and continuous supply of medical gases (such as oxygen and nitrous oxide), mixed with an accurate concentration of anaesthetic vapour (such as isoflurane), and deliver this to the patient at a safe pressure and flow. Modern machines incorporate a ventilator, suction unit, and patient-monitoring devices.
The original concept was invented by the British anaesthetist H.E.G. Boyle in 1917. Prior to this time, anaesthetists often carried all their equipment with them, but the development of heavy, bulky cylinder storage and increasingly elaborate airway equipment meant that this was no longer practical for most circumstances. The anaesthetic machine is usually mounted on anti-static wheels for convenient transportation.
Simpler anaesthetic apparatus may be used in special circumstances, such as the TriService Apparatus, a simplified anaesthesia delivery system invented for the British armed forces, which is light and portable and may be used effectively even when no medical gases are available. This device has unidirectional valves which suck in ambient air which can be enriched with oxygen from a cylinder,with the help of a set of bellows. A large number of draw-over type of anaesthesia devices are still in use in India for administering an air-ether mixture to the patient, which can be enriched with oxygen. But the advent of the cautery has sounded the death knell to this contraption, due to the explosion hazard.
Many of the early innovations in U.S. anaesthetic equipment, including the closed circuit carbon-dioxide absorber (aka: the Guedel-Foregger Midget) and diffusion of such equipment to anaesthetists within the United States can be attributed to Dr. Richard von Foregger and The Foregger Company.
Components of a typical machine

Simple schematic of an anaesthesia machine
A modern machine typically includes the following components:
connections to piped hospital oxygen, medical air, and nitrous oxide. Pipeline pressure from the hospital medical gas system (wall outlet) should be around 400 kPa (60 psi; 4 atmospheres).
reserve gas cylinders of oxygen, air, and nitrous oxide attached via a specific yoke with a Bodok seal. Older machines may have cylinder yokes and flow meters for carbon dioxide and cyclopropane. Many newer machines only have oxygen reserve cylinders. The regulators for the cylinders are set at 300 kPa (45 psi; 3 atmospheres). If the cylinders are left on and the machine is plugged into the wall outlet, gas from the wall supply will be used preferentially, since it is at a higher pressure. In situations where pipeline gases are not available, machines may safely be used from cylinders alone, provided fresh cylinders are available.
a high-flow oxygen flush which provides pure oxygen at 30 litres/minute
pressure gauges, regulators and 'pop-off' valves, to protect the machine components and patient from high-pressure gases (referred to as 'barotrauma').
flow meters (rotameters) for oxygen, air, and nitrous oxide, which are used by the anaesthesiologist to provide accurate mixtures of medical gases to the patient. Flow meters are typically pneumatic, but increasingly electromagnetic digital flow meters are being used.
one or more anaesthetic vaporisers to accurately add volatile anaesthetics to the fresh gas flow
a ventilator
physiological monitors to monitor the patient's heart rate, ECG, non-invasive blood pressure and oxygen saturation (additional monitors are generally available to monitor end-tidal CO2, temperature, arterial blood pressure central venous pressure, etc.). In addition, the composition of the gases delivered to the patient (and breathed out) is monitored continuously.
breathing circuits, most commonly a circle attachment, or a Bain's breathing system, which are breathing hoses connected to a anaesthesia face mask
a heat and moisture exchanger (HME) with or without bacteria-viral filter (HMEF).
scavenging system to remove expired anaesthetic gases from the operating room. Scavenged gases are usually vented to the atmosphere.
suction apparatus
There is generally a small work bench built into the machine where airway management equipment is kept within ready reach of the anaesthetist.
Safety features of modern machines
Based on experience gained from analysis of mishaps, the modern anaesthetic machine incorporates several safety devices, including:
an oxygen failure alarm (also known as 'Oxygen Failure Warning Device' or OFWD). In older machines this was a pneumatic device called a Ritchie...(and so on) To get More information , you can visit some products about merbau flooring, click bamboo flooring, stainless steel flooring, wooden cube, quarter round, bamboo veneer, decorative ceiling tile, outdoor floor tile, cast iron floor, art glass mosaic, . The Oak / Birch / Maple Solid Flooring products should be show more here!

Sellotape for Adhesive Tape Product

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Sellotape
Type
Public
Founded
1930s, United Kingdom
Headquarters
Winsford, Cheshire, United Kingdom
Products
Sellotape, other adhesive stationery
Owner(s)
Henkel
Website
www.sellotape.com
Sellotape is a European brand of transparent, cellulose-based, pressure sensitive adhesive tape, and is the leading brand of clear sticky tape in the United Kingdom. Sellotape is generally used for joining, sealing, attaching and mending. It is also referred to as cellophane tape.
The name ellotape was coined in 1937 by Colin Kininmonth and George Gray, who made the product by applying rubber resin to cellophane film. The tape was originally manufactured in Acton, West London. From the 1960s to 1980s, the Sellotape company was part of Dickinson Robinson Group, a British packaging and paper conglomerate. In 2002, it was bought by Henkel Consumer Adhesives, which continues to manufacture the tape in its factory in Dunstable, Bedfordshire.
Sellotape Original is made using cellulose film, a natural product which is derived from wood pulp. The cellulose film used to make Sellotape Original breaks down naturally in the soil. Sellotape Original is also naturally easy tear and non-static.
The Sellotape brand now covers a variety of tape products, and the word is frequently used in place of dhesive tape in many countries due to its market exposure. As an example of a genericised trademark, it has an entry in the Oxford English Dictionary.
See also
Scotch Tape
Duct Tape
Masking tape
External links
Official web site
This product article is a stub. You can help Wikipedia by expanding it.
Categories: Adhesive tape | Office equipment | Henkel brands | Brand name products stubs
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