RADIO TELESCOPE

RADIO TELESCOPE

A radio telescope is a specialized antenna and radio receiver used to receive radio waves from astronomical radio sources in the sky in radio astronomy. Radio telescopes are the main observing instrument used in radio astronomy, which studies the radio frequency portion of the electromagnetic spectrum emitted by astronomical objects, just as optical telescopes are the main observing instrument used in traditional optical astronomy which studies the light wave portion of the spectrum coming from astronomical objects. Radio telescopes are typically large parabolic ("dish") antennas similar to those employed in tracking and communicating with satellites and space probes. They may be used singly, or linked together electronically in an array. Unlike optical telescopes, radio telescopes can be used in the daytime as well as at night. Since astronomical radio sources such as stars, nebulas andgalaxies are very far away, the radio waves coming from them are extremely weak, so radio telescopes require very large antennas to collect enough radio energy to study them, and extremely sensitive receiving equipment. Radio observatories are preferentially located far from major centers of population to avoid electromagnetic interference (EMI) from radio, television, radar, motor vehicles, and other EMI emitting devices.

Radio waves from space were first detected by engineer Karl Guthe Jansky in 1932 at Bell Telephone Laboratories in Holmdel, New Jersey using an antenna built to study noise in radio receivers. The first purpose-built radio telescope was a 9-meter parabolic dish constructed by radio amateur Grote Reber in his back yard in Wheaton, Illinois in 1937. The sky survey he did with it is often considered the beginning of the field of radio astronomy.

Early radio telescopes

Full-size replica of the first radio telescope, Jansky's dipole array, preserved at the US National Radio Astronomy Observatory in Green Bank, West Virginia.

The first radio antenna used to identify an astronomical radio source was one built by Karl Guthe Jansky, an engineer with Bell Telephone Laboratories, in 1932. Jansky was assigned the job of identifying sources of static that might interfere with radio telephone service. Jansky's antenna was an array of dipoles and reflectors designed to receive short wave radio signals at a frequency of 20.5 MHz (wavelength about 14.6 meters). It was mounted on a turntable that allowed it to rotate in any direction, earning it the name "Jansky's merry-go-round". It had a diameter of approximately 100 ft (30 m) and stood 20 ft (6 m) tall. By rotating the antenna, the direction of the received interfering radio source (static) could be pinpointed. A small shed to the side of the antenna housed an analog pen-and-paper recording system. After recording signals from all directions for several months, Jansky eventually categorized them into three types of static: nearby thunderstorms, distant thunderstorms, and a faint steady hiss of unknown origin. Jansky finally determined that the "faint hiss" repeated on a cycle of 23 hours and 56 minutes. This period is the length of an astronomical sidereal day, the time it takes any "fixed" object located on the celestial sphere to come back to the same location in the sky. Thus Jansky suspected that the hiss originated outside of the Solar System, and by comparing his observations with optical astronomical maps, Jansky concluded that the radiation was coming from the Milky Way Galaxy and was strongest in the direction of the center of the galaxy, in the constellation of Sagittarius.

Reber's first "dish" radio telescope - Wheaton, IL 1937

An amateur radio operator, Grote Reber, was one of the pioneers of what became known as radio astronomy. He built the first parabolic "dish" radio telescope, a 9 metres (30 ft) in diameter) in his back yard in Wheaton, Illinois in 1937. He repeated Jansky's pioneering work, identifying the Milky Way as the first off-world radio source, and he went on to conduct the first sky survey at very high radio frequencies, discovering other radio sources. The rapid development of radar during World War II created technology which was applied to radio astronomy after the war, and radio astronomy became a branch of astronomy, with universities and research institutes constructing large radio telescopes.

SOURCE:https://en.wikipedia.org/wiki/Radio_telescope

My Opinion: The way I understand Radio Telescope that it help us to communicate by using our cellphone or any devices that can communicate through signal. This is the most usable device because now a days all of us are using cellphone. Radio Telescope is an antenna and is the main source of our signal because it is a large dish that can receive and send. 

STEM CELL CLONING

Stem Cell Cloning

The cloning procedure works by combining a patient's body cell with an unfertilized egg cell from a donor. The patient's skin cell is inserted into the outer membrane of the egg cell and chemically induced to begin developing into a blastocyst. In the blastocyst, embryonic cells divide, producing a mass of stem cells.

Cloning/Embryonic Stem Cells

The term cloning is used by scientists to describe many different processes that involve making duplicates of biological material. In most cases, isolated genes or cells are duplicated for scientific study, and no new animal results. The experiment that led to the cloning of Dolly the sheep in 1997 was different: It used a cloning technique called somatic cell nuclear transfer and resulted in an animal that was a genetic twin -- although delayed in time -- of an adult sheep. This technique can also be used to produce an embryo from which cells called embryonic stem (ES) cells could be extracted to use in research into potential therapies for a wide variety of diseases.

Thus, in the past five years, much of the scientific and ethical debate about somatic cell nuclear transfer has focused on its two potential applications: 1) for reproductive purposes, i.e., to produce a child, or 2) for producing a source of ES cells for research.

Cloning for Reproductive Purposes

The technique of transferring a nucleus from a somatic cell into an egg that produced Dolly was an extension of experiments that had been ongoing for over 40 years. In the simplest terms, the technique used to produce Dolly the sheep - somatic cell nuclear transplantation cloning - involves removing the nucleus of an egg and replacing it with the diploid nucleus of a somatic cell. Unlike sexual reproduction, during which a new organism is formed when the genetic material of the egg and sperm fuse, in nuclear transplantation cloning there is a single genetic "parent." This technique also differs from previous cloning techniques because it does not involve an existing embryo. Dolly is different because she is not genetically unique; when born she was genetically identical to an existing six-year-old ewe. Although the birth of Dolly was lauded as a success, in fact, the procedure has not been perfected and it is not yet clear whether Dolly will remain healthy or whether she is already experiencing subtle problems that might lead to serious diseases. Thus, the prospect of applying this technique in humans is troubling for scientific and safety reasons in addition to a variety of ethical reasons related to our ideas about the natural ordering of family and successive generations.

Scientific Uncertainties

Several important concerns remain about the science and safety of nuclear transfer cloning using adult cells as the source of nuclei. To date, five mammalian species -- sheep, cattle, pigs, goats, and mice -- have been used extensively in reproductive cloning studies. Data from these experiments illustrate the problems involved. Typically, very few cloning attempts are successful. Many cloned animals die in utero, even at late stages or soon after birth, and those that survive frequently exhibit severe birth defects. In addition, female animals carrying cloned fetuses may face serious risks, including death from cloning-related complications.

An additional concern focuses on whether cellular aging will affect the ability of somatic cell nuclei to program normal development. As somatic cells divide they progressively age, and there is normally a defined number of cell divisions that can occur before senescence. Thus, the health effects for the resulting liveborn, having been created with an "aged" nucleus, are unknown. Recently it was reported that Dolly has arthritis, although it is not yet clear whether the five-and-a-half-year-old sheep is suffering from the condition as a result of the cloning process. And, scientists in Tokyo have shown that cloned mice die significantly earlier than those that are naturally conceived, raising an additional concern that the mutations that accumulate in somatic cells might affect nuclear transfer efficiency and lead to cancer and other diseases in offspring. Researchers working with clones of a Holstein cow say genetic programming errors may explain why so many cloned animals die, either as fetuses or newborns.

Policy and Regulation

Several groups have concluded that reproductive cloning of human beings creates ethical and scientific risks that society should not tolerate. In 1997, the National Bioethics Advisory Commission recommended that it was morally unacceptable to attempt to create a child using somatic cell nuclear transfer cloning and suggested that a moratorium be imposed until safety of this technique could be assessed. The commission also cautioned against preempting the use of cloning technology for purposes unrelated to producing a liveborn child.

Similarly, in 2001 the National Academy of Sciences issued a report stating that the United States should ban human reproductive cloning aimed at creating a child because experience with reproductive cloning in animals suggests that the process would be dangerous for the woman, the fetus, and the newborn, and would likely fail. The report recommended that the proposed ban on human cloning should be reviewed within five years, but that it should be reconsidered "only if a new scientific review indicates that the procedures are likely to be safe and effective, and if a broad national dialogue on societal, religious and ethical issues suggests that reconsideration is warranted." The panel concluded that the scientific and medical considerations that justify a ban on human reproductive cloning at this time do not apply to nuclear transplantation to produce stem cells. Several other scientific and medical groups also have stated their opposition to the use of cloning for the purpose of producing a child.

Cloning for the Isolation of Human ES Cells

The cloning debate was reopened with a new twist late in 1998, when two scientific reports were published regarding the successful isolation of human stem cells. Stem cells are unique and essential cells found in animals that are capable of continually reproducing themselves and renewing tissue throughout an individual organism's life. ES cells are the most versatile of all stem cells because they are less differentiated, or committed, to a particular function than adult stem cells. These cells have offered hope of new cures to debilitating and even fatal illness. Recent studies in mice and other animals have shown that ES cells can reduce symptoms of Parkinson's disease in mouse models, and work in other animal models and disease areas seems promising.

In the 1998 reports, ES cells were derived from in vitro embryos six to seven days old destined to be discarded by couples undergoing infertility treatments, and embryonic germ (EG) cells were obtained from cadaveric fetal tissue following elective abortion. A third report, appearing in the New York Times, claimed that a Massachusetts biotechnology company had fused a human cell with an enucleated cow egg, creating a hybrid clone that failed to progress beyond an early stage of development. This announcement served as a reminder that ES cells also could be derived from embryos created through somatic cell nuclear transfer, or cloning. In fact, several scientists believed that deriving ES cells in this manner is the most promising approach to developing treatments because the condition of in vitro fertilization (IVF) embryos stored over time is questionable and this type of cloning could overcome graft-host responses if resulting therapies were developed from the recipient's own DNA.

Policy and Regulation

Since 1996, Congress has prohibited researchers from using federal funds for human embryo research. In 1999, DHHS announced that it intended to fund research on human ES cells derived from embryos remaining after infertility treatments. This decision was based on an interpretation "that human embryonic stem cells are not a human embryo within the statutory definition" because "the cells do not have the capacity to develop into a human being even if transferred to the uterus, thus their destruction in the course of research would not constitute the destruction of an embryo." DHHS did not intend to fund research using stem cells derived from embryos created through cloning, although such efforts would be legal in the private sector.

In July 2001, the House of Representatives voted 265 to 162 to make any human cloning a criminal offense, including cloning to create an embryo for derivation of stem cells rather than to produce a child. In August 2002, President Bush, contending with a DHHS decision made during the Clinton administration, stated in a prime-time television address that federal support would be provided for research using a limited number of stem cell colonies already in existence (derived from leftover IVF embryos). Current bills before Congress would ban all forms of cloning outright, prohibit cloning for reproductive purposes, and impose a moratorium on cloning to derive stem cells for research, or prohibit cloning for reproductive purposes while allowing cloning for therapeutic purposes to go forward. As of late June, the Senate has taken no action. President Bush's Bioethics Council is expected to recommend the prohibition of reproductive cloning and a moratorium on therapeutic cloning later this summer.

SOURCE:https://www.genome.gov/.../cloningembryonic-stem-cells/

History of Stem Cell Research

Stem cells have an interesting history that has been somewhat tainted with debate and controversy. In the mid 1800s it was discovered that cells were basically the building blocks of life and that some cells had the ability to produce other cells.

Attempts were made to fertilise mammalian eggs outside of the human body and in the early 1900s, it was discovered that some cells had the ability to generate blood cells.

In 1968, the first bone marrow transplant was performed to successfully treat two siblings with severe combined immunodeficiency. Other key events in stem cell research include:

• 1978: Stem cells were discovered in human cord blood
• 1981: First in vitro stem cell line developed from mice
• 1988: Embryonic stem cell lines created from a hamster
• 1995: First embryonic stem cell line derived from a primate
• 1997: Cloned lamb from stem cells
• 1997: Leukaemia origin found as haematopoietic stem cell, indicating possible proof of cancer stem cells

In 1998, Thompson, from the University of Wisconsin, isolated cells from the inner cell mass of early embryos and developed the first embryonic stem cell lines. During that exact same year, Gearhart, from Johns Hopkins University, derived germ cells from cells in foetal gonad tissue; pluripotent stem cell lines were developed from both sources. Then, in 1999 and 2000, scientists discovered that manipulating adult mouse tissues could produce different cell types. This meant that cells from bone marrow could produce nerve or liver cells and cells in the brain could also yield other cell types. These discoveries were exciting for the field of stem cell research, with the promise of greater scientific control over stem cell differentiation and proliferation.

SOURCE:http://www.explorestemcells.co.uk/historystemcellresearch.html

My Opinion: Stem Cell Cloning is the best way for doctors to find a cure for any diseases.

KAPANADZE GENERATOR

Kapanadze Generator

A Georgia Republic inventor, Tariel Kapanadze, claims to have invented a 5 kilowatt free energy generator. In a demonstration video, the device appears to produce copious amounts of energy from no visible source.

The components apparently include a radiator buried in the ground, a wire to a water pipe, a Tesla coil/joule thief, a spark gap, transformer, capacitors, 5 ferrite cores from old TV HV transformers, and some other unidentified components.

In the videos below under the keyword "Kapanadze", several different iterations or varieties are shown. Two appear to be solid state of different sizes, one in a black box. Another is a rotating system.

On July 22, 2009, a video was posted showing a 100 kW unit being third party tested.

  Kapanadze Generator(KapanGen)

Tariel Kapanadze, like Don Smith, is probably one of the most successful people who have come up with devices based on the work of Nikola Tesla. The outcome is so convincing that quite a few people, probably close to a hundred of them, could actually replicate Kapanadze’s power generator. They call it “KapanGen” or “KapaGen” in short. This page is dedicated to show videos related to KapanGen devices.

In his words, here is the reason why Tariel Kapanadze can successfully get Tesla’s design to function (emphasis added): “I discovered how to get AUTOMATIC RESONANCE between the primary and secondary windings. The most important thing is TO ACHIEVE RESONANCE.”

SOURCE:http://electromagneticgeneratorpower.com/videos/kapanadze-generator-kapangen/

My Opinion: Kapanadze Generator it can gives electricity. I think they can build more of this in the future that can give more advance Kapanadze generator that can power a whole city and have an unlimited electricity for everyone.

EPHEDRINE

EPHEDRINE

Ephedrine is a medication used to prevent low blood pressure during spinal anesthesia. It has also been used for asthma,narcolepsy, and obesity but is not the preferred treatment. It can be taken by mouth or by injection into a muscle, vein, or just under the skin. Onset with intravenous use is fast, while injection into a muscle can take 20 minutes, and by mouth can take an hour for effect. When given by injection it lasts about an hour and when taken by mouth it can last up to four hours.

Common side effects include trouble sleeping, anxiety, headache, hallucinations, high blood pressure, fast heart rate, loss of appetite, and inability to urinate. Serious side effects include stroke, heart attack, and abuse. While likely safe in pregnancy its use in this population is poorly studied.Use during breastfeeding is not recommended.Ephedrine works by turning on α and βadrenergic receptors.

Ephedrine was first isolated in 1885. It is on the WHO Model List of Essential Medicines, the most important medications needed in a basic health system.It is available as a generic medication. The wholesale cost in the developing world is about 0.69 to 1.35 USD per dose. In the United States it is not very expensive. It can normally be found in plants of the Ephedra type. Dietary supplements that contain ephedrine are illegal in the United States. An exception is when used in traditional Chinese medicine.

Weight loss

Ephedrine promotes modest short-term weight loss, specifically fat loss, but its long-term effects are unknown.In mice ephedrine is known to stimulate thermogenesis in the brown adipose tissue, but because adult humans have only small amounts of brown fat, thermogenesis is assumed to take place mostly in the skeletal muscle. Ephedrine also decreases gastric emptying.Methylxanthines such as caffeine and theophylline have a synergistic effect with ephedrine with respect to weight loss. This led to creation and marketing of compound products. One of them, known as the ECA stack, contains caffeine and aspirin besides ephedrine. It is a popular supplement taken by bodybuilders seeking to cut body fat before a competition. 

Agricultural

Ephedrine is obtained from the plant Ephedra sinica and other members of the Ephedra genus. Raw materials for the manufacture of ephedrine and traditional Chinese medicines are produced in China on a large scale. As of 2007, companies produced for export US$13 million worth of ephedrine from 30,000 tons of ephedra annually, 10 times the amount used in traditional Chinese medicine.

Proposed biosynthetic pathway of ephedrine from L-phenylalanine and pyruvic acid.

The four stereoisomers of ephedrine

Synthetic

Most of the l-ephedrine produced today for official medical use is made synthetically as the extraction and isolation process from E. sinica is tedious and no longer cost effective.

Biosynthetic    Ephedrine was long thought to come from 

modifying the amino acid L-phenylalanine. L-Phenylalanine would be decarboxylated and subsequently attacked with ωaminoacetophenone. Methylation of this product would then produce ephedrine. This pathway has since been disproven. A new pathway proposed suggests that phenylalanine first forms cinnamoyl-CoA via the enzymes phenylalanine ammonia-lyase and acyl CoA ligase. The cinnamoyl-CoA is then reacted with a hydratase to attach the alcohol functional group. The product is then reacted with a retro-aldolase, forming benzaldehyde. Benzaldehyde reacts with pyruvic acid to attach a 2 carbon unit. This product then undergoes transamination and methylation to form ephedrine and its stereoisomer, pseudoephedrine.

History

Ephedrine in its natural form, known as má huáng (麻黄) in traditional Chinese medicine, has been documented in China since the Han dynasty (206 BC – 220 AD) as anantiasthmatic and stimulant. In 1885, the chemical synthesis of ephedrine was first accomplished by Japanese organic chemist Nagai Nagayoshi based on his research ontraditional Japanese and Chinese herbal medicines. The industrial manufacture of ephedrine in China began in the 1920s, when Merck began marketing and selling the drug as ephetonin. Ephedrine exports between China and the West grew from 4 to 216 tonnes between 1926 and 1928.

In traditional Chinese medicine, má huáng has been used as a treatment for asthma and bronchitis for centuries.

Source:https://en.wikipedia.org/wiki/Ephedrine

My Opinion: Ephedrine is the best way for over weight to use for them because it can promotes modest short term weight loss, and it can prevent low blood pressure but don't over use it may cause your health

Leadership in Energy and Environmental Design (LEED)

Leadership in Energy and Environmental Design                                    (LEED)

What is LEED?

Leadership in Energy and Environmental Design (LEED) is a rating system devised by the United States Green Building Council (USGBC) to evaluate the environmental performance of a building and encourage market transformation towards sustainable design. The system is credit-based, allowing projects to earn points for environmentally friendly actions taken during construction and use of a building. LEED was launched in an effort to develop a “consensus-based, market-driven rating system to accelerate the development and implementation of green building practices.” The program is not rigidly structured; not every project must meet identical requirements to qualify.

Why Use LEED?

LEED is a voluntary program; however, obtaining a LEED certification projects a positive environmental image to the community. Additionally, using many green building practices can result in energy and cost savings over the life of the structure. Other advantages include better indoor air quality and plenty of daylight. Studies have shown that workers in these environments have increased labor productivity, job retention, and days worked. These benefits contribute directly to a company’s profits because salaries—which are about ten times higher than rent, utilities, and maintenance combined—are the largest expense for most companies occupying office space. In addition, students in these environments have higher test scores and lower absenteeism. Retail sales are higher in daylit buildings.

Who Uses LEED?

Many cities and states either provide tax credits or grants for green buildings, or requiregreen building certification for public buildings. The U.S. government is adopting LEED or similar green building standards for the General Services Administration (which owns or leases over 8300 buildings), the U.S. Army, the Department of State, the Department of Energy (DOE), and the Environmental Protection Agency (EPA). Numerous states including California, New York, Oregon, and Washington have adopted LEED for public buildings. Many agencies are requiring LEED silver certification as a minimum. Thirteen countries have expressed interest in LEED including China and India; these countries have exceptionally high levels of new building construction. Conditions vary and the list is growing, so please contact local jurisdictions or USGBC for details. Support for green buildings has increased rapidly each year over the last five years. 

SOURCE:http://www.concretethinker.com/solutions/LEED-Certification.aspx

History

From 1994 to 2015, LEED grew from one standard for new construction to a comprehensive system of interrelated standards covering aspects from the design and construction to the maintenance and operation of buildings. LEED also has grown from six volunteers on one committee to 119,924 staff, volunteers and professionals. LEED standards have been applied to approximately 83,452 registered and certified LEED projects worldwide, covering around 13.8 billion square feet (1.28 billion square meters).

Many U.S. federal agencies and state and local governments require or reward LEED certification. However, four states (Alabama, Georgia, Maine, and Mississippi) have effectively banned the use of LEED in new public buildings, preferring other industry standards that the USGBC considers too lax.

Unlike model building codes, such as the International Building Code, only members of the USGBC and specific "in-house" committees may add, subtract, or edit the standard, subject to an internal review process. Proposals to modify the LEED standards are offered and publicly reviewed by USGBC's member organizations, which number almost 12,216.

USGBC's Green Building Certification Institute (GBCI) offers various accreditation to people who demonstrate knowledge of the LEED rating system, including LEED Accredited Professional (LEED AP), LEED Green Associate, and since 2011, LEED Fellows, the highest designation for LEED professionals. GBCI also certifies projects pursuing LEED.

Benefits and disadvantages

Real estate developers have begun to use LEED certification and a building's green status as selling points

LEED certified buildings are intended to use resources more efficiently when compared to conventional buildings simply built to code. However, analysis of energy and water use data from New York City shows that LEED certification does not necessarily make a building more energy or water efficient.

Often, when a LEED rating is pursued, the cost of initial design and construction rises. There may be a lack of abundant availability of manufactured building components that meet LEED specifications. Pursuing LEED certification for a project is an added cost in itself as well. This added cost comes in the form of USGBC correspondence, LEED design-aide consultants, and the hiring of the requiredCommissioning Authority (CxA)—all of which would not necessarily be included in an environmentally responsible project, unless it also sought a LEED rating.

However, these higher initial costs can be effectively mitigated by the savings incurred over time due to the lower-than-industry-standard operational costs typical of a LEED certified building. This Life cycle costing is a method for assessing the total cost of ownership, taking into account all costs of acquiring, owning and operating, and the eventual disposal of a building. Additional economic payback may come in the form of employee productivity gains incurred as a result of working in a healthier environment. Studies suggest that an initial up-front investment of 2% extra yields over ten times that initial investment over the life cycle of the building.

Further, the USGBC has stated support for the Architecture 2030, an effort that has set a goal of using no fossil-fuel, greenhouse-gas-emitting energy to operate by 2030.

In the progression of sustainable design from simply meeting local buildings codes to USGBC LEED (Certified, Silver, Gold and Platinum) to the Architecture 2030 Challenge, the Living Building Challenge is currently the most stringent sustainable design protocol. The LBC sets 20 imperatives that compel building owners, designers, operators and tenants beyond current USGBC LEED rating levels.

LEED is a design tool and not a performance measurement tool. It is also not yet climate-specific, although the newest version hopes to address this weakness partially. Because of this, designers may make materials or design choices that garner a LEED point, even though they may not be the most site- or climate-appropriate choice available. On top of this, LEED is also not energy-specific. Since it only measures the overall performances, builders are free to choose how to achieve points under various categories. A USA TODAY review showed that 7,100 certified commercial building projects targeted easy and cheap green points, such as creating healthy spaces and providing educational displays in the building.^[65] Few builders would really adopt renewable energy because the generators for those energy resources, such as solar photovoltaic, are costly. Builders game the rating system and use certain performances to compensate for the others, making energy conservation the weakest part in the overall evaluation.

LEED is a measurement tool for green building in the United States and it is developed and continuously modified by workers in the green building industry, especially in the ten largest metro areas in the U.S.; however, LEED certified buildings have been slower to penetrate small and mid-major markets. Also, some criticism suggests that the LEED rating system is not sensitive and does not vary enough with regard to local environmental conditions. For instance, a building in Maine would receive the same credit as a building in Arizona for water conservation, though the principle is more important in the latter case. Another complaint is that its certification costs require money that could be used to make the building in question even more sustainable. Many critics have noted that compliance and certification costs have grown faster than staff support from the USGBC.

For existing buildings LEED has developed LEED-EB. Research has demonstrated that buildings that can achieve LEED-EB equivalencies can generate a tremendous ROI. In a 2008 white paper by the Leonardo Academy comparing LEED-EB buildings vs. data from BOMA's Experience Exchange Report 2007 demonstrated LEED-EB certified buildings achieved superior operating cost savings in 63% of the buildings surveyed ranging from $4.94 to $15.59 per square foot of floor space, with an average valuation of $6.68 and a median valuation of $6.07.

In addition the overall cost of LEED-EB implementation and certification ranged from $0.00 to $6.46 per square foot of floor space, with an average of $2.43 per square foot demonstrating that implementation is not expensive, especially in comparison to cost savings. These costs should be significantly reduced if automation and technology are integrated into the implementation.

SOURCE:https://en.wikipedia.org/wiki/Leadership_in_Energy_and_Environmental_Design

My Opinion:(LEED) is an organization that helps people how to live a Green and healthy living. This is good way that (LEED) continues to make our environment clean and our world safe and supports the people who don't have homes. The LEED developes set of system for the building, homes, construction, and maintaining green building