Tag Archives: computer

Photography – an art, a science, and a job

Photography (Source: SamAlive/Flickr)
Photography (Source: SamAlive/Flickr)

Main Points:

Photography is an interesting task that inspires many people to inspire many others. It starts from the art of creativity and imagination, goes from the science of click and light, and ends with a beautiful memory in the hand or book. For some people, this memory helps them in earning more memories.

So, one of my favorite ideas to earn more memories is through Dreamstime. You can join Dreamstime to earn money and help others to earn money through photography, here:


Camera and photography (Source: Anonymous)
Camera and photography (Source: Anonymous)

Study Further:

Photo is a representation of a person or scene in the form of a print or transparent slide. It is recorded by a camera on light-sensitive material. The process of taking photos is known as photography. It is a science and art, and immediately after the invention of this process, it became a kind of job too.

Photography as an art

“I like photographs which leave something to the imagination.” – Fay Godwin

Photos help us to capture beautiful and unique moments in our life. They can make us laugh and they can also bring tears in our eyes. They can remind us of our past and they can inspire to do something great in our future. They make us creative and imaginative. A simple idea for creative photography is “Imagine novelty”.

Remember, “The camera is an instrument that teaches people how to see without a camera.” – Dorothea Lange

Photography as a science

“Photography is putting one’s head, one’s eye and one’s heart on the same axis.” – Henri Cartier-Bresson

Physics and chemistry is also involved behind the science of photography. Cameras for photography have lenses with particular focus and aperture. Light is involved in capturing those beautiful moments. Photography is also related to science in many other aspects as, for example, scientists have found that learning a new and mentally demanding skill such as photography can help in improving cognitive functioning (Park et al., 2013). In another study, scientists found that (edited) photos can manipulate our memories (Sacchi et al., 2007).

Photography as a job

“It is a beautiful thing when a career and a passion come together.” – Anonymous

Photos can also help us in earning money. People can make a good amount from photography. They adapt the profession of “photojournalism” or work as freelancers.

In the present technology of internet, it is easy for anyone to sell his or her photos online. Many free stock photo sites are available on internet and some of them are Dreamstime, Shutterstock, and Fotolia. You can join these sites and start earning by selling your photos and images. Interestingly, you can also make money by referring other people to these sites. One of my recently explored sites is Dreamstime. You can register yourself on the site here: http://www.dreamstime.com/register#res11512567

You can see some of my images on Dreamstime below:

Tree in front of light
© Photographer: Usman Zafar Paracha | Agency: Dreamstime.com

Railway track
© Photographer: Usman Zafar Paracha | Agency: Dreamstime.com

© Photographer: Usman Zafar Paracha | Agency: Dreamstime.com

An old train
© Photographer: Usman Zafar Paracha | Agency: Dreamstime.com

Park, D., Lodi-Smith, J., Drew, L., Haber, S., Hebrank, A., Bischof, G., & Aamodt, W. (2013). The Impact of Sustained Engagement on Cognitive Function in Older Adults: The Synapse Project Psychological Science, 25 (1), 103-112 DOI: 10.1177/0956797613499592

Sacchi, D., Agnoli, F., & Loftus, E. (2007). Changing history: doctored photographs affect memory for past public events Applied Cognitive Psychology, 21 (8), 1005-1022 DOI: 10.1002/acp.1394

Detection of Alzheimer’s disease with a digital pen

Drawing of people in different conditions (Source: MIT News)
Drawing of people in different conditions (Source: MIT News)

Alzheimer’s disease is a degenerative brain disorder that is similar to senile dementia except that it begins in the later stages of life, usually after 40 years. Among the first signs and symptoms of the disease are impaired memory along with impaired thought and speech. However, these signs and symptoms appear after a significant damage to the brain.

This disease (along with many other psychiatric problems such as Parkinson’s) can be detected by doctors and experts with the help of drawing and/or writing. However, doctor’s or expert’s opinion matter a lot in detection of such problems, and these problems become apparent only when the patient has already advanced to serious conditions. Without an expert’s opinion, it is difficult to confirm the problem.

Recently, MIT researchers have developed a digital pen that is attached to a custom tracking software. This digital pen can help in finding the condition in early stages by knowing not only what the person draws but also how he/she draws an image or diagram. A simple fact is that healthy people spend more time in thinking, whereas people with memory problems spend a lot more time in thinking and patients of Parkinson’s disease struggle with the process of drawing.


MIT News (http://newsoffice.mit.edu/2015/could-pen-change-how-we-diagnose-brain-function-0813)

Souillard-Mandar et al. (2015). Learning Classification Models of Cognitive Conditions from Subtle
Behaviors in the Digital Clock Drawing Test MLJ

Python package essentially with astronomy related functionality

AstropyMain Point:

Researchers have presented the first public version (v0.2) of the open-source and community-developed Python package, Astropy, that is able to provide core astronomy-related functionality to the community.

Published in:

Astronomy & Astrophysics

Study Further:

Python logoPython:

Python is a portable, interpreted, object-oriented programming language developed and freely distributed by its developer. Python runs on many platforms, including UNIX, Windows, OS/2 and Macintosh and is used for writing TCP/IP applications. Continue reading Python package essentially with astronomy related functionality

NASA is reportedly installing $15m Quantum Computer

NASA is installing quantum computer for research
NASA is installing quantum computer for research (Credit: ALENGO/ISTOCKPHOTO)

Main Points:

NASA is installing a $15m computer that works on quantum computation and is reported to be about 3,600 times faster than the existing computers. It will also be shared by Google and other scientists from the world to study the artificial intelligence and machine learning. Continue reading NASA is reportedly installing $15m Quantum Computer

Widespread networking bug will expose huge number of devices to hackers – Beware

networking bug
Networking bug will enable the hackers to take full control of many devices (Credit: iStockphoto/Angel Herrero De Frutos)

A widespread networking bug would harm your computer as reported by Reuters cited by Rapid7, security software maker. The bug or the defect not only harms but also gave hackers the ability to get full control of computers, webcams, printers and security systems. In fact, there is a long list of devices developed by manufacturers such as Belkin, D-Link, Cisco Systems Inc’s Linksys division and Netgear.

“This is the most pervasive bug I’ve ever seen,” said HD Moore, chief technology officer for Rapid7.

“This definitely falls into the scary category,” said Chris Wysopal, chief technology officer of security software firm Veracode, who reviewed Rapid7’s findings ahead of their publication.

According to Wysopal, Rapid7’s report has made us to think about bug fixations of the emerging technology of uPnP security. Continue reading Widespread networking bug will expose huge number of devices to hackers – Beware

Scientists have set a new record by moving beyond million-core processing

Scientists from Stanford Engineering’s Center for Turbulence Research (CTR) worked on the computational fluid dynamics (CFD) simulations utilizing Sequoia supercomputer, a supercomputer at the Lawrence Livermore National Laboratories, to understand the engine noise from supersonic jets. Computational fluid dynamics simulations required finely tuned balance of computation, memory and communication components.

It is the first time that the team of scientists has successfully pushed the CFD simulation ahead of 1 million cores.

A floor view of the newly installed Sequoia supercomputer at the Lawrence Livermore National Laboratories. (Photo: Courtesy of Lawrence Livermore National Laboratories)

Continue reading Scientists have set a new record by moving beyond million-core processing

Lenovo introduces multi-touch screen table computer

Lenovo, Chinese computer manufacturer, has introduced a giant touchscreen Table PC with a 27 inch screen having 17.8 pounds of weight. It is called as IdeaCentre Horizon.

This computer can be used as an “interactive table” or as a conventional PC. This computer has been introduced by the company at the Consumer Electronics Show in Las Vegas on Sunday.

Computer table (Credit: Lenovo)

Continue reading Lenovo introduces multi-touch screen table computer

Digital devices will come with five senses specific to living things in the next five years: IBM said

5 in 5IBM is fully confident about the invention of digital devices that would be able to see, hear, taste, smell and touch in 5 years as shown by the company’s “5 in 5” list representing the five trends in the next five years.

Instead of brain, the new era of digital devices would rely on “cognitive computing” that would enable the computers and other devices to learn from experience rather than depending on programming so that the device will automatically check for the right option and if there is not a better option the computer will try to generate the best one after checking its history.

“That’s a foundationally different way of thinking of computing,” Bernie Meyerson, IBM’s vice president of innovation, told in an interview to Mashable. “You have to change how you think about absorbing data. You can’t just take a picture and file the picture. You have to treat the picture as an entity at a very high level, as opposed to just a bunch o’ bits.”

“[Cognitive computing] makes for some very interesting shifts in capability,” he adds. “That’s a rather profound sort of driver.” Continue reading Digital devices will come with five senses specific to living things in the next five years: IBM said

IBM’s light fast communication technology between the computer systems

IBM has announced a technology that is said to be a “breakthrough optical communication technology” through which the company has utilized the light instead of electrical signals to send out information from one place to another. This technology has been announced by the company in San Francisco and it is called as “silicon nanophotonics”.

This progress forms a part of IBM’s “Exascale computing program,” which aims to develop a supercomputer that can make a million trillion calculations (a so-called “Exaflop”) per second.

In this technology, IBM has utilized single silicon chip that is made by using standard 90 nanometer manufacturing process and has integrated both the optical components and electrical circuits. This chip has the ability to transmit 25 Gigabits of optical data per second.

Falsely colored blue wires carry optical signals and the yellow wires carry electrical ones (Credit: IBM)

Continue reading IBM’s light fast communication technology between the computer systems

Dielectrics conducted electricity and broke conventional thinking; Research

Fused silica after giving very short potent ultraviolet pulses showed ultra-fast processingScientists have successfully used laser pulses through dielectrics to achieve 10,000 times faster working of transistors than the conventional transistors.

Researches presenting this have been done by Georgia State University professor and international researchers, and published online in the journal Nature.

This research is really interesting because it showed that the substance which was not used for a certain purpose have suddenly broken all the records of that purpose.

Technological industries generally use two types of solids for electricity; metals and semiconductors. However, there is a third type of solid i.e. insulators also known as dielectrics, that don’t conduct electricity and if someone tries to pass high fields of energy through them, they could be damaged.

In the recent study, scientists gave brief potent laser pulses to the dielectrics and found that they started conducting electricity without being damaged. They found that the dielectric was able to process signals very fast that were on the order of 1 femtosecond i.e. the same time for the light wave vibration. The dielectric devices are able to work at 1 petahertz as compared to the processor of conventional computers that operate slightly faster than 3 gigahertz. Continue reading Dielectrics conducted electricity and broke conventional thinking; Research