A Pollution Free Source of Energy The Sun

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With issues such as global warming, depletion of ozone layer and increase in the content of carbon prominent in today's scenario, our major concern is reducing the level of pollution in the atmosphere. Thus various steps are being taken in order to replace the old methods of generating electricity which causes pollution with alternatives which causes less pollution. In previous times the sun's energy was only used for biological processes. All existence on the earth depends on solar energy. Green plants make food by means of photosynthesis. Light is essential from in this process to take place.

This radiance usually comes from sun. Animal get their food from plants or by eating other animals that feed on plants. Plants and animals also need some heat to stay alive. Thus sun's application area was limited to a small range of biological purposes and domestic application such as drying clothes etc. Now the use of solar energy has spread to a wider range, the major application area is generation of electricity.

The sun is a large sphere of very hot gases, the heat being generated by various kinds of fusion reactions. The heat from the sun is harnessed by the solar power system, which converts it into electricity and supplies it for use. Solar power system comprise of huge panel of solar cell also known as photovoltaic (PV) cell. These photovoltaic cells are made up of semiconductor material such as silicon. The PV cell panel is fitted at the roof tops of the building at certain angles and facing south. Also there are tracking mounts that tract the location of the sun and adjust to it accordingly. This technology is majorly used in elaborate solar system.

The sunlight falling on the panel causes the electrons in the semiconductor material to loosen from the atom a. These electrons then flow into the external circuit and form the electric current. The solar power generated is directly proportional to the number of solar panels installed i.e. more solar panel would generate more electricity.

Solar energy provides economical and practical solution to the environment related problem. PV cells helps to generate power that causes less or no pollution by reducing the emission of the harmful gasses such as carbon dioxide (CO2) that were evident in the traditional methods. Since sun is free and available most days, this method is cost efficient too as it includes just the installation cost and very low maintenance. A bright and a sunny day would always produce more electricity however electricity would also be generated on a cloudy day but the amount produced will be comparatively low.

Jon Harwokey is a part time author who is very interested in doing his part to help the environment. When researching solar panels, he went to Clean Energy Quotes for all his answers. They can help you with information on solar power systems as well as finding a professional solar panel installation company.

A New Dawn In Healthcare This Is How Project Healthureum Will Ensure Transparency In Data, Billings

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There is an arising need for transparency in the global healthcare centre. Not everyone who claims to be a practitioner is a professional who can handle the health of the patients with care and responsibility that is required. There have been many uncertainties in the healthcare industry. Healthureum is a new project that aims at ensuring transparency is achieved in data, billings, processes and claims.
The health care services have been a challenge to all global patients. The expenses of getting the services are on the rise and research shows; it will continue to rise. This is no surprise, given the expenses of infrastructure and other costs that the health care incurs. This is a challenge because the healthcare industry is a venture that the family depends on for many services.
Some individuals are desperate and need urgent medication. Some specialists take advantage of their lack of alternatives. The patient has no choice, so they have to succumb to the treatment. Such issues have been accelerated due to few or lack of alternatives in the global healthcare industry.
The Healthureum ecosystem will help eliminate all these issues in the health industry. It is offering a safe way of acquiring medical practitioners globally conveniently. That is not all; the ecosystem also offers a transparent way of making payments.
The strategy is to consider the challenges that all the patients are facing. They will then help in eradicating such policies to ensure consistency, affordability and transparency.
Medical Infrastructure
Medical investment is the greatest investment in the health industry. Project Healthureum will incorporate blockchain in medical infrastructure to measure factors such as; supply chain and reliability, return on investment, maintenance and upgradations, demand and usage.
This will improve the transparency in the medical infrastructure; this is very crucial because it will assist the health industry while making budgets. The figures and stated facts are important in that they ensure that the health industry has sufficient facilities to service that their patients get quality services. Through their processes, the Healthureum can help in population health management.
By analyzing these trends, the government can identify future problems in the health industry such as the rise of the chronic diseases.
This will help the medical facilities in making future budgets by addressing medical infrastructure vs demand. This can be analyzed in future using the smart blockchain technology.
By using the Healthureum tokens, to make purchases and service medical infrastructure, we can record crucial facts and show each time machines are used and show what patient used. Blockchains decentralized nature helps to record all the steps in chronological order and verify the authenticity of the supplier.
Research Programs
Research is very paramount in the health industry. It is through the research that the sector discovers new medications to diseases. The research data is, therefore, valuable and should be handled carefully.
Project Healthureum will integrate blockchain technology to ensure that every data is monitored and recorded. It will then ensure that the information is accessible and safe, such that no one can tamper with it.
This will eliminate any possible risks of external manipulation while helping researchers to acquire and measure the required data.
All the participants are rewarded with HTH tokens. Individuals who want to take part in treatment programs will pay through the Healthureum ecosystem using the tokens.
Data Systemization
It is crucial that you have your personal, emergency or medical data combined. This makes it easy when you require medical attention; you can easily share your medical history with the practitioner. The Heathureum ecosystem ensures that the patients have all their data on a single platform. The platform is encrypted to ensure that the integrity of the patients data is maintained. The data of the blockchain is stored in sequential order and cannot be tampered with by any chance.
The doctors are permitted to view the data of the patient. Other parties who may want to view the data have to ask for the patients permission.

https://www.healthureum.io/

A List of Responsibilities of a Software Tester

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Given how entitled our lives have become with the progress in technology, it is not that surprising that most of us are oblivious to the significant contribution of software testers in our day to day life in this digitized existence. From the apparent point of view, the job of a software tester may seem like a pretty straight forward, single faceted affair, but in reality, the roles and duties of a software testing engineer is much more layered and complex. Technology is something that almost the entire world is familiar with but many of us don't realize often that manual software testing services are a real thing and our Smartphone (or PC or tablet...you get the point) would have been a dead mass without their existence. To know about these software testers and their whereabouts in a little more details, lets start from the beginning.

What is software testing?

Software testing is a procedure where a program or application is run by a technician to look for presence of any bugs. Testing is also important prior to the implementation of the program in order to ascertain their integrity of design as well as their quality and to ensure that the programs meet the requirements of the client.

Software testing is conducted in a couple of different steps:

Static Testing: It is carried out during the process of verification. It is a cost effective way of testing as it does not require executing the code in order to look for errors, it just reviews the documents and static analysis.
Dynamic Testing: In this procedure, a program is executed to observe the final result of the test runnings. It is carried out while the validation process occurs.
Planning: It is important to plan what testing methods are to be used and how the activities are going to be controlled.
Preparing: Once the testing method is selected, testing conditions and testing cases are to be designed.
Evaluation: During this step, the softwares performance is checked and evaluated and if the program fulfills the criteria of completion, it is given a green flag.

Why is testing necessary?

By virtue of the essential difference between human beings and a well programmed machine, all of us are bound to make mistakes in whatever we do. And as of 2017, humans are still the ones behind the designing and programming of softwares. So it is quite natural that a software program must contain some glitch in it after being built for the first time. This is where testing becomes necessary-to make sure that the programs the developer conjured up with his lost appetite and sleep deprivation does not fall flat on its behind upon implementation. Hence, the importance of software testing goes as following:

To point out the errors made during the development of the program
To make sure of a certain quality standard of the software
To increase the customers confidence on as well as their satisfaction from the program
To ensure that the application does not result in a failure. Or else it will take a toll in the later phases of development.

What are the roles and responsibilities of a software tester?

The very obvious responsibility of a software tester is to test the programs and report the bugs. During the test planning and preparation stages of testing, testers are to review and construct test plans along with analyzing and assessing the requirements of the design.

Apart from their obvious functions, software testers are given additional responsibilities depending on the companies they work for. Some of these add ons include:

Understand the requirements of the software and clarify doubts regarding the same
Learn about the software that is being tested and all the other softwares that are associated with it
Understanding the entire plan of the master project
Create required test data for the procedure of testing
Maintain test logs
Design specific cases of testing according to the requirements
Create testing plans
Organize the necessary test beds of hardware, software and network.
Report the bugs to the stakeholders
Inform the stakeholders of the test results
Attend to bug reports that have been returned
Update the cases of testing as defects are discovered
Conduct a re-test of the resolved bug issues
Update the automation of tests depending on the updated cases of testing
Report the progress in work to the project manager or team lead
Help the team out through providing them with inputs

The responsibilities differ depending on the firms that one is associated with. For example, smaller companies are able to hire lesser people and hence an individual employed in such a company has to tackle much more responsibilities than the employees of a bigger company.

Overall, manual software testing services are surely not a piece of cakewalk. More or less software testers are burdened with more complicated tasks than their literal designation. Without them, the world of technology would be crumbling apart in a day. So now for the next thanksgiving, you know whom to add to your list of gratitude.

Also read on How to Save Time in Manual Software Testing?

A Guide To Understanding The Different Types Of Condoms

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If used perfectly every single time, Planned Parenthood puts the effectiveness of a condom at 98%.

However, they go on to point out that none of us are perfect and the real statistic should be placed at about 85%. In an effort to avoid any negative repercussions, we not only need to know how to use condoms but understand what our options are.

Lets take a look at the different types of condoms so you can choose the one thatll work best for you.

1. The Classic Latex Condom

These types of condoms are the most common and stretch more easily than other alternatives.

One of the most important things to point out, however, is that they should never be used with body oil. Oil can cause them to break or slip off more easily. Instead, consider a water or silicone-based lubricant.

2. The Non-Latex Condom

After rolling around in the sheets, feeling a rash break out down there can certainly give you heart palpitations.

Dont rush to the worst case scenario, though, and think you suddenly contracted an STD. You might be allergic to latex. In that case, make sure you select a non-latex condom next time.

These types of condoms are less popular than their latex counterparts because they dont stretch as easily and are less effective at preventing pregnancy. One study established that non-latex condoms are eight times more likely to break than latex condoms.

In the event of a latex allergy, consider adding spermicide to your prevention methods.

3. Spermicidal Condoms

Did you just start to wonder how youre supposed to manage condoms and spermicidal in the heat of the moment?

Have no fear. Spermicidal condoms are here.

Just know that you never want to use spermicide alone. They wont protect you against sexually transmitted diseases.

4. The Female Condom

These types of condoms are talked about less, but worth considering. Their rate of effectiveness is about 3% lower than regular male condoms.

The upside to these is that they can be inserted well in advance of that magic moment.

The most important thing to note is that you should never use male condoms in conjunction with female condoms.

The two can adhere together or cause slippage. You know what that means!

5. Textured Condoms

These types of condoms might be best reserved for someone youre having regular sex with. They tend to take a little bit of experimentation.

Textured condoms might be ribbed, textured, or even studded. Dont cringe! Some people say they offer added stimulation.

If youre ever curious, try on a few and see if any of them heightens the already-pleasurable experience!

Now That You Know the Different Types of Condoms, Spread the Word!

Here at Article City, we can help you market any product, from solar panels, to travel blogs, to the different types of condoms.

Sign up for a free Article City account so you can see what over 40,000 other marketers are doing to excel in their industry.

Spend some time on our blog, too. Its filled with tons of useful advice, including the best way to craft content for male audiences.

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A Brief Timeline History of The Cellular Phone

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NEW YORK---If you were to ask the casual world citizen today who invented the smartphone, chances are that most people would say Apple. Others, considering themselves more astute, might say Research In Motion (RIM) or Nokia. All of the above guesses, though sincere, are absolutely wrong. A quick internet search will quickly reveal that the invention of smartphone dates back to IBM in 1992, the same year text messaging was invented. As for the invention of the cell phone itself, you would have to travel back to 1973 when its inventor, Dr Martin Cooper, made the first cell phone call to a rival using a technology that was invented in 1947. And without the contribution of genius inventor Andre Gray's transformation of the cell phone from a mere communications device into a multimedia/entertainment device, we cannot bare the thought of a boring phone that can only make phone calls and send text messages. Read the timeline history below about a fascinating communications tool that is bigger and much more ubiquitous than even the internet itself.

1947-The basic concept of cellular phones began. Bell Laboratories introduced the idea of cellular communications in with the police car technology.

1968-The FCC reconsidered its position in 1968, stating "if the technology to build a better mobile service works, we will increase the frequencies allocation, freeing the airwaves for more mobile phones

1973-Dr Martin Cooper, a former general manager for the systems division at Motorola, is considered the inventor of the first modern portable handset. He made the call to his rival, Joel Engel, Bell Labs head of research.

1977-AT&T and Bell Labs had constructed a prototype cellular system.

1979 -The first commercial cellular telephone system began operation in Tokyo.

1981- Motorola and American Radio telephone started a second U.S. cellular radio-telephone system test in the Washington/Baltimore area.

1982- The slow-moving FCC finally authorized commercial cellular service for the USA.

1987- Cellular telephone subscribers exceeded one million and the airways were crowded. During that time, three ways of improving services existed: (1) increase frequencies allocation; (2) split existing cells and (3) improve the technology.

1988- The Cellular Technology Industry Association (CTIA) was established to work with the cellular service operators and researchers to identify new technology requirements and set goals.

1991-The Telecommunications Industry Association (TIA) created a standard specification based on the requirements the CTIA had recommended. The TDMA Interim Standard 54 or TDMA IS-54 was released.

1992- Neil Papworth successfully sends the first text message (from a PC) "Merry Christmas" to Richard Jarvis at Vodaphone

1992- The IBM Simon Personal Communicator ( the world's very first smartphone) is introduced.

1994- Inventor Andre Gray invents ringtones & ringbacks along with the SYNC Programming Language (world's very first downloadable app & ringtones programming language) for his IBM Simon Cell Phone.

1994- TDMA IS-136 uses the frequency bands available to the wireless network and divides them into time slots with each phone user having access to one time slot at regular intervals.

1998- Inventor Andre Gray forever transform the cell phone from a mere communications device into a multimedia/entertainment device when he invents Microgrooves Electronic ( the world's first multimedia player app that allows cell phones to play entire songs/albums, show videos and record & playback both audio and video).

1999- Research In Motion (RIM) introduced the BlackBerry 850.

2006- On December 12, 2006 ,LG Electronics introduces the LG KE850, or LG Prada, a touchscreen mobile smartphone. It remains the most influential mobile design ever.

2007- On June 29th, 2007, Apple releases the first iPhone, which has a striking resemblance to the LG Prada...and the rest is history!

A Brief History Of Photography

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The forerunner to photography was the ability by artists to trace scenes onto canvas with the aid of projected images. They were able to do this from as early as the 16th century using the camera obscura and the camera lucida.

These early cameras were not able to fix an image. That did not happen until 1826 when a Frenchman named Nicphore Nipce produced an image on a polished pewter plate covered with a petroleum derivative. The exposure time as an incredible eight hours and he later went on to improve his photographic technique using a silver and chalk mixture which darkens when exposed to light.

Nipce refined the process further when he formed a partnership with Louis Daguerre. When Nipce died in 1833, Daguerre carried on his work.

Louis Daguerre, a former collaborator with Nicphore Nipce in early photographic techniques, made a major break through in 1839 developing a process called daguerreotype.

This used silver on a copper plate and is still the basis of the process utilised today in Polaroids. The French government seized on the development and bought up the Daguerreotype patent.

There were also developments across the English Channel where William Fox Talbot was working on a similar process to the daguerreotype, but had kept his findings a secret. By 1840 he had invented the calotype process,which enabled him to produce positive prints.

Constant battles defending his patents saw Fox eventually give up his research in photography.

One of the early innovators in photographic technology was Slovene Janez Puhar who invented the process for putting photos on glass in 1841. This earned Puhar recognition at the French Acadmie Nationale Agricole, Manufacturire et Commerciale on July 17th 1852.

A year earlier Frederick Scott Archer developed the collodion process, which was used by children's author Lewis Carroll, whose photos are popular to this day.

Meanwhile,the daguerreotype photographic process,developed by Louis Daguerre in the late 1830s, was enjoying continuing popularity as the demand for photos continued to grow.

But Daguerreotype photos were expensive to produce. This led to a revival in William Fox Talbot's inspired, but secret process.

The popularity of daguerreotype photographs was because they could provide portrait pictures far quicker than the traditional oil painting. Also the growth of the middle class, with artistic pretensions and the cash to spend, led to growth in demand for portraits. But the cost of a photo was very high, exceeding 1,000 at today' prices.

As well as the expense there were other problems with daguerreotype photographs. Copies of these photos were difficult to produce and they were also fragile, meaning that as well as costing a small fortune they could be easily destroyed.

The solution to this problem was to be handed to the chemists who sought to improve the process of producing photographs.

The move to photography as we know it today occurred in the late 19th century. George Eastman developed a process which removed the need for photographic plates and toxic chemicals to be carried around by photographers. The new format involved dry gel on paper or film.

With the launch of the Eastman Kodak camera in the summer of 1888, virtually anyone could take photographs. The slogan was "You press the button, we do the rest" and in 1901 the first mass appeal camera - the Kodak Brownie - was put on the market.

Quality improved with the introduction of 35mm film - the 35mm Leica camera was introduced in 1925.

Subsequent developments in photography have been remarkable, as colour film, automatic focus and digital cameras have achieved popularity.

Insight are Hull commercial photographers specialising in producing Hull corporate photography for businesses in Hull and Yorkshire.

Log on http://www.insightphotographers.co.uk for further assistance on Yorkshire Wedding photographers or Yorkshire Wedding photography.

A Beginners Guide to Using Reddit

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Its been referred to as the front page of the internet, so wanting to get involved with the Reddit community is completely understandable.

But when you land on the homepage for the very first time, its hard not to feel overwhelmed. Reddit is a site with its own rules, structure, and even its own language.

If youre keen to get in on the Reddit action, read this quick guide and learn the ropes before you plunge in.

So what is Reddit?

Reddit is a content democracy based on a system of voting. Its a place to learn the latest news and find a sense of community.

Once you start using it, youll find that Reddit is a culture more than a site, which means itll be difficult to grasp on day one. Like turning up on the first day of school and expecting to be accepted into the clique right off the bat.

There are lots of in-jokes and community references, and although these might feel a little alienating at first, theyre the very same things thatll make you feel like part of the family further down the line.

How does Reddit work?

Subreddits
These are the channels on Reddit. If youre new, youll automatically be subscribed to the top subreddits, like Technology, Music, and Gaming. As you continue using Reddit, youll find more subreddits to subscribe to.

Multireddits
These are customizable groups that you can put your subreddits in. Theyll sit neatly in your side nagivation bar so you can easily get to where you want to be.

Upvoting
Help improve the rank of items by upvoting them. If they get enough upvotes, theyll appear on the Reddit homepage.

Downvoting
If something wasnt helpful or interesting, you can give it a downvote.

Score
The number of upvotes and downvotes on an item will affect its overall score. The score sits between the up arrows and down arrows. The number of upvotes minus the number of downvotes gives you that items score.

Karma
Karma is earned as you continue to use Reddit. Its based on how many upvotes and downvotes your posts and comments have gathered since you opened your account.

Learn the Reddit Lingo

We werent kidding when we said that the Redditors have their own language. Heres how to crack the code:

TL;DR Too long, didnt read
If someone has posted a wall of text, its not uncommon to see this in response.

HIFW How I feel when
Use this in tandem with a GIF that expresses your extreme emotional reaction to any given subject.

FTFY Fixed that for you
Typically used when someone bests or outdoes a claim made by another Redditor.

OP Original poster
This is used when referring to the person that originally started the thread or post in question.

ITT In this thread
Use this when you want to generalize about the community within one specific thread.

Before you post

Dont forget to brush up on your Reddiquette. Dont spam and never resort to asking others to upvote your content. Each subreddit has its own rules that must be followed, so dont forget to check these out before you post.

Feeling Reddit ready? Head on over to the site and get involved with the global discussion.

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