There were 53 million freelancers ( 34 % of the total workforce) in America in 2014, according to Forbes. The percentage of freelancers is expected to increase to a whopping 50% of the total workforce. Quartz puts it at 40%. Whatever the percentages are after 4 years or so, we all know that freelancing and earning money sitting at home has become a unique trend. There is no reason to believe that its popularity would be go down in the future.

Freelancing is the solution to many problems. Having difficulty paying tuition fees or rent? Try freelancing. Cannot work 9 to 5 because you have to raise several kids at home? Try freelancing. Getting bored by the education your school/college/university provides? Try freelancing. Your boss is not raising your salary? Try freelancing and say bye-bye to your boss. There are million of reasons to try freelancing. It is simply easy and spontaneous.

The only difficult part is finding the first project. To get the project, the freelancers have to be at the right place at the right time (on the internet, of course). They have to know their expertise and the freelancing sites which are suitable for such kind of expertise. Pretty uphill task is it researching about all the freelancing sites. Even then the prospective freelancers are not absolutely sure which site(s) to create an account on.

Listed below are some of the best freelancing sites agreed upon by almost all the freelancers so that new freelancers do not waste time signing up for wrong websites.


Upwork came into being after two freelancing sites named Odesk and Elance were combined into one. It can easily be regarded as the most popular platform for freelancers. It has 9 million registered members and 4 million clients. All the jobs posted in a year amount to $1 billion. It has work available for all types of freelancers whether they are marketers or lawyers, engineers or writers, data scientists or web developers and artists or app developers.upwork upwork est un site indépendant où vous téléchargez vos ...


On Fiverr, each task is called a gig which starts from $5. A gig can be as easy as making a facebook page or proofreading an article. Fiverr again has work for all types of skill sets. It was launched six years ago and has an Alexa rank of about 450.How To Make Money With Fiverr Without Having To Write Anything On Your ...


Guru is about 15 years old. It caters to all kinds of work. Users of guru have claim that this site has one of the simplest and easy to use interfaces among all the freelancing sites. It also has a good dispute resolution system and its project fee ranges from 5-10 %.

Find freelance jobs and work ~ | Job Listing Sites | Pintere ...


99designs is specifically for aspiring designers. And it is not similar to most freelancing sites where freelancers sign in, bid, acquire the project and work on it. Here, work is in the form of contests. Task or project is posted. Several freelancers provide the work. The best design is chosen. It is a must join site for the designers.


Freelancer is the only platform which gives the option of projects as well as contests. Those who think their reviews are good enough that they will acquire a project should bid. Contests are a good way to demonstrate skills if there are less or hardly any reviews. It can easily be called the most popular freelancing platform as it has about 19 million registered users with a total of 8 million jobs posted so far.


Founded in 2005, it is similar to the rest of the freelancing sites and is one of the most popular sites for freelancers. It boasts of over 250000 active users with the majority of them freelancers and the rest clients. The clients are most small scaled businesses that do not want to hire a professional resource. It is a UK based company. It was voted in 2012 as ‘Europe’s hottest startup’.

Freelance Writing Gigs

If you are a writer and you want a dedicated website suited to your skills, Freelance writing gigs is the go to site. Whether you are a writer or a blogger, publisher or an editor, you should not miss the opportunity of joining this site.


It is relatively a new site. Toptal sprung up from Silicon Valley about six years ago. First of all, becoming a member of this site is difficult. Unlike other sites, one cannot just log on and become a member. They have to apply for it. The screening process is quite rigorous and only the top 3% of the applicants are selected. Once the applicants are selected, they are free to do a wide variety of jobs mostly within the bounds of technical projects. It is suitable for programmers, developers and designers. One of its CEOs was named ’30 under 30 enterprise technology entrepreneurs of 2015′.





Korea, North

  • Literacy rate=100%
  • 11-year free and compulsory primary and secondary education.

Prominent universities (worldwide rank):

  • Kim II-sung University


  • Literacy rate=99.99%
  • Free and compulsory education till 15.

Prominent universities (worldwide rank):

  •  University of Latvia (701+)


  • Literacy rate=99.8%

Prominent universities (worldwide rank):

  • Taras Shevchenko National University of Kyiv (421-430 )

  • V. N. Karazin Kharkiv National University (491-500 )
  • National Technical University of Ukraine “Kyiv Polytechnic Institute” (601-650 )
  • Donetsk National University (701+ )


  • Literacy rate=99.8%

Prominent universities (worldwide rank):

  • Khorugh State University

  • Khujand State University

  • Tajikistan State University of Law, Business and Politics.


  • Literacy rate=99.8%
  • A total of 500+ universities

Prominent universities (worldwide rank):

  • University of Warsaw (344)

  • Jagiellonian University (411-420)
  • Warsaw University of Technology  (651-700)


  • Literacy rate=99.8%

Prominent universities (worldwide rank):

  • Vilnius University (501-550)

  • Kaunas University of Technology (701+)


  • Literacy rate=99.8%
  • Compulsory till secondary level

Prominent universities (worldwide rank):

  • Al-Farabi Kazakh National University (275)

  • L.N. Gumilyov Eurasian National University (371)
  • Kazakh National Technical University  (551-600)
  • Kazakh National Pedagogical University  (601-650)


  • Literacy rate=99.8%
  • Compulsory for all children between the ages of 6 and 14.

Prominent universities (worldwide rank):

  • Tbilisi State University


  • Literacy rate=99.8%

Prominent universities (worldwide rank):

  • University of Tartu (400)

  • Tallinn University of Technology (601-650)


  • Literacy rate=99.8%
  • Compulsory and free education from the age of six till 15.

Prominent universities (worldwide rank):

  • Universidad de la Habana (701+)

  • University of Santiago de Cuba
  • Polytechnic Jose Antonio Echeverrria

From what I understand, scientists delve deep into a topic. They research about it and try to find out the why’s and how’s of it. Engineers, on the other hand use that information to solve real-world problems. This does not mean that scientists cannot apply what they have discovered or found out. They can but they have to do so by limiting themselves according to the real-world constraints. This is because scientists when carrying out tests, have to be really broad-minded and not generally care about how well it can be applied. Engineers, have to care more about the application. They sometimes tend to overlook or even modify the theories to suit the needs of the solution process. I guess the difference between a scientist and an engineer can be depicted by the following equations:

Knowledge + Understanding + Analysis = Scientist.

Knowledge + Understanding + Analysis + Application = Engineer.

So, this is how guess the world works. Scientists research about theories and problems and find out the theoretical solutions. Engineers play with these theories and theoretical solutions and try to come up with practical solutions using the minimal resources. The managers, marketers or salesmen then come into play and sell the solutions or products developed by the engineers and researched by the scientists to gain monetary benefit. All three are equally important to each other. Without scientists, engineers would not be able to create new products or solve real-world problems. Without engineers, scientists would not get the chance to see their research work being put to some good use. And without managers, the reach of the products of engineers would have been low. If these three work in tandem, progress and development takes place. New discoveries are made and new things are invented. Innovative solutions to complex problems are formed.

So, if you want to find out whether you are a scientist or an engineer, judge your mindset. Do you seem to usually ask yourself ‘how’ and ‘why’ a thing happens? Do you feel like going into depth? Then you have the potential to be a scientist. However, if you ask yourself how can you utilize the given information or knowledge to your advantage, then you have the potential to be an engineer. And if you ask yourself as to how you can make money from a situation or an event or a product, then you are a future businessman 🙂

So, what is your opinion about the difference between scientists and engineering? Awaiting your comments.


Posted: February 13, 2014 in Physics

A capacitor is a component that stores energy in it. It has two plates with a dielectric material in between. The greater the energy stored, the greater the capacitance. The greater the area of the capacitor plates, the greater the capacitance and the lesser the distance between the plates, the greater the capacitance. Apart from its dependence on its plate distance and area, capacitance is also dependent on the type of dielectric material it is made of.
Some examples of dielectric material are sand, glass, plastic etc.

Capacitors are widely used. Some examples include alarm clock, XRAY machines, calculators and hybrid cars etc.

Technically, capacitors store charge. They can be easily charged by a battery. This stored energy can be to put to use in many ways, for example, in lighting up a bulb. But one thing to keep in mind is that a capacitor loses its charge rather quickly, unlike a battery. So, a bulb would go off or become dim once the capacitor has been completely discharged. And this would happen rather quickly.

Once a capacitor has fully charged, a DC current cannot flow through it. However, an alternating current can always flow through it.

Mathematically, capacitance is found by the formula C=Q/V where Q is the charge and V is the voltage.

The capacitors can be placed in series and in parallel just like the resistors. However, the calculation is opposite to that of the resistors. When capacitors are in parallel, their capacitance is just added. When in series, the inverse of each capacitor is added and the total is inversed.

Just for entertainment, here is the link to a post: This person actually puts the extra water bottles to good use by turning them into a capacitor. This is just for entertainment purposes. Try at your own risk if you are really interested.

Equilibrium in everyday life

Posted: March 1, 2011 in Physics

The Wikipedia defines equilibrium as the condition of a system in which competing influences are balanced. This particular word is used extensively in the realms of physics as well as biology, chemistry and economics etc. In whatever context it is used, it almost always refers to balance. This phenomenon helps us in carrying out our daily routines in one way or other. However, we tend to overlook these situations and continue with our daily lives. Today, I am going to enumerate as well as briefly explain some of the examples from our daily lives which describe the concept of equilibrium.

Let us start with a toaster. You plug it into a socket and switch it on. The electric current will flow from the socket and into the appliance. With the increase in electric current, the filaments inside the toaster will start to glow. At a point, the amount of electric current flowing to the toaster will become equal to the heat energy produced by the toaster. Then we would be able to say that the toaster has achieved a state of equilibrium. In simpler words, a balance would be created between the electrical energy and the heat energy.

When a pendulum is made to stop and hanged loosely downwards, it is said to be in the equilibrium position.

Let us look at a simple example of a see-saw. If two individuals, having almost identical weights, sit on opposite sides of the see-saw and also make sure that their distances from the fulcrum are same, then the see-saw would not be tilted. It would be stationary and straight.csaw1 This would be the point of equilibrium or balance of the see-saw. The balance would not be disturbed until another individual joins them or one of them changes their distance from the fulcrum point.csaw2 Now, let us suppose that on one side of the see-saw, two individuals are sitting together. The balance would be disturbed and it would tilt. To again move it into a state of equilibrium, the individual sitting alone would have to increase the distance from the fulcrum until they get balanced again.

Have you ever played tug of war? Has a situation arisen when your team and the opposing team are pulling the rope with full power and vigour, yet the rope is not moving in either of the directions? This state is actually another example of equilibrium. This would normally occur when the team members of both the teams are applying equal strength or in technical terms, force. Bring another guy in any one of the team and see for yourself how the state of equilibrium is broken.tug of war I came across a picture on the net of a boy balancing a bamboo stick with his right and middle fingers at the middle of the stick. The point worth telling is that a pair of scissors and a thermos was also placed on the stick and still it was in an equilibrium position. The pair of scissors was placed at the end of the stick while the thermos was positioned very near his fingers. Then how was the stick balanced?bamboobalance This occurred because the moment of force on one side was equal to the moment of force on the opposite side. Moment of force is determined by finding out the product between the weight of the object (in this case the pair of scissors or the thermos) and the distance between the point of balance (the fingers). Less weight but larger distance of the scissors and lesser distance but larger weight of the thermos accounted for the moment of force of both to become equal, which resulted in an equilibrium state.

A fish is an ideal example of equilibrium. A fish swimming at a certain depth under the sea without floating upward or sinking unexpectedly is said to be in equilibrium. This is achieved by the swim bladder present in it. The bladder is present in the belly of a fish. It is like a sac. Its function is to contract or expand according to the depth of the fish, thus allowing it to remain at a specific depth.

In economics, the concept of demand and supply is a really important one. Demand refers to the amount of a product consumers want to buy whereas supply is known by the quantity of a product available in a market. Less demand and greater supply causes the price of a product to decrease. On the other hand, greater demand and less supply results in higher price of the product. However, on occasions when the demand of a product or a service is equal to its supply, the economy of that product is said to be in equilibrium.

So, these were few of the examples of equilibrium occurring in our daily lives. The examples of equilibrium are present in front of us. All we need is a little bit of observational and analytical skills to figure out how we can apply the concepts of equilibrium in our day-to-day activities.