Tuesday, August 16, 2011

This is what I tried to draw

This post is continuation to previous post Can you guess what I am drawing ?
So here is the answer. It is homeless old guy. While browsing, I got stuck up at http://www.generasix.com/?p=282. I liked their photography and immediately had a thought of drawing one of their photos. Finally landed up here with these photos and video. It took almost 5 hours to complete this picture continuously without using eraser.

Then I was thinking to have a background score with a very cool music notes for my video, after browsing I got link to Jurg Hochweber (composer of guitar music)  http://www.hochweber.ch/guitar.htm. Thanks to the source of photo and music.

Please leave your comments for better improvement of my drawing skills. Thanks for reading and watching.

   



Sunday, August 14, 2011

Can you guess what I am drawing ?

Hi readers,

I finished a pencil sketch very recently which took around 5 hours to complete the whole thing without using eraser. I took multiple snaps with my iPhone while I was drawing to make a video out of it. Suddenly I got a funny idea, "why can't I post few pics and ask you to let you guess what it is?" Isn't it a good idea ?

As a first step I am uploading few snaps. Please comment with your idea or guess and please follow this blog for next pictures. I am going to update this blog for 2 more times with next pictures and complete video. Thanks for reading and visiting my blog. I am very sorry if I waste your valuable time.









                                                            Here is the answer: click here

Sunday, July 31, 2011

What is a QR code?

QR code is a member of bar code family. Several types of bar codes are available in the world today to serve different business needs and etc. Among all those types, QR code has its significant importance. As name itself says that it is Quick Response code, decoding process will be done at high speed. It is a specific two dimensional code. It’s easily readable by dedicated QR bar code readers, camera telephones and computers with necessary software including web cams.

Who started it?

It was created by Toyota (Japan) subsidiary Denso-Wave in 1994 (referred Wikipedia). The technology has seen frequent use in Japan, the Netherlands, and South Korea, while the rest of the world has been slower in the adoption of QR codes.

What it can hold?

QR code can have different types of data like Website URL, Text, Phone Number, SMS Message, Email Address, Contact Details (VCARD), Event (VCALENDAR), Google Maps Location and iTunes Link etc.

Where can I find?

As it became popular throughout the world, one can easily observe them in shopping malls (on the tags of different goods), airports,  museums, road side wall posters and on business cards etc.

How to use or read?

While walking on the road or in the shopping mall, one can easily scan QR codes by using their smartphone and get access to the respective website which avoids the bother of typing URL in small QWERTY keyboard of phone.  If you find a business card with QR code, which means you can easily save the info into your smartphone with no hassle of typing .

How to generate?

There are plenty of websites which can generate QR codes based on your business or individual needs. Sample QR code links up our BlogSpot. I really loved the way it showed up in my iPhone while using below code to open our blog.


Some of the QR code Generators:



iPhone QR code scanners:

 There are so many apps to read these barcodes in iPhone and Android markets. I have checked out couple of them to my iPhone. My vote goes to Scan and RedLaser. Scan decodes and shows its content inside the app itself. It has camera light on/off button too. RedLaser decodes and opens the content in safari browser if it is website URL. And the nice feature with RedLaser is one can easily generate QR code and mail it or save to their 
iPhone.

Interesting videos:




Sources:

Friday, July 29, 2011

Interesting facts about birds

I have gone through couple of links when I was searching for interesting facts about birds. I thought it would be nice to summarize my readings regarding birds. In this post, I would like to discuss different kinds of them, how do they fly and how they talk.

What is bird?

Bird is a class of vertebrates. They are warm-blooded and lay eggs. Their bodies are covered with feathers and they have wings, the function of which is usually flight. Their bones are hollow. This makes them lighter and allows many of them to fly.

Because birds keep a high body temperature, they use lots of energy. So, they need to eat a lot of food compared with their weight.

How many different kinds of birds are there?

As we know there are several types of them. As per the sources there are over 10,000 species of birds in the world. About 925 have been seen in the U.S. and Canada. About 1,000 have been seen in Europe. By far the largest concentration of bird species are found in South America. Over 3,200 species have been seen there. In Colombia, Bolivia and Peru the species count for each country tops 1,700.
Here are some very general figures for the species count for each continent:
  • 3,200 South America
  • 2,900 Asia
  • 2,300 Africa
  • 2,000 North America (from Panama north + Caribbean)
  • 1,700 Australia + surrounding islands
  • 1,000 Europe
  • 65 Antarctica
Counting subspecies there are about 30000 different types.

How do they fly?

Immediately one can get this interesting question. If a bird is just gliding (or "soaring"), that is, not flapping its wings, it flies in pretty much the same way that an airplane flies. The wings push air down, so by Newton's third law the air must push them up. Partly, the push comes from the angle the wings are held at and partly from the curvature of the wings. The air travels faster above the bird's wing than it does below, and this makes the pressure lower above the wing.

Birds are more complicated than that, and so are airplanes. Some energy source is required to overcome the unavoidable drag of pushing through the air, to lift the bird or airplane up to flying height, and to give the bird or airplane kinetic energy. Airplanes use propellers or jet engines. Birds use strong muscles in their breasts to flap their wings. In addition, bird wings are hinged, while airplane wings are rigid and fixed. The bird uses its strong muscles to push its wings downwards, pushing air downwards, generating lift, and, if the wings are angled properly, also thrust. The big problem then becomes not pushing air back upwards when the bird moves its wings up for the return stroke.

This is accomplished with the hinged wings. On the down stroke, the wing is fully extended, offering its full surface area for pushing air downwards. On the upstroke, the wing folds up, presenting less area. It is a lot like rowing with oars. The oar pushes the water behind the boat on the power stroke, but must be removed from the water and, ideally, turned 90 degrees so it does not push air or water forwards on the return stroke.

Birds have a lot of adaptations for flight. Their bones are hollow and light, but strong, They have light feathers which catch the air. They can fold up their wings when they are not in use. Their lungs are extra efficient at extracting oxygen from the air (we huff and puff when running, and flying is much harder!). They eat huge amounts of high-energy food, relative to their body weight.

To get a very descriptive knowledge about bird and its aerodynamics click here.

How do parrots talk?

To get a better knowledge about the science of bird vocalization click here.

Types of Talking Parrots



Couple of bird photo galleries which I like...
Thanks for reading.

Sources: