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Scratch is available free of charge and is currently available for Mac OSX, Windows, and Debian / Ubuntu.

Some statistics

As of March 15, 2013, the Scratch home page indicates that 3,171,004 projects have been created (and that number is increasing by about 230 projects per hour or 4 projects per minute) .

According to an article published by MIT personnel

"On the morning of May 14, 2007, the (Scratch Online Community) website was officially launched. Several news outlets and social newswebsites featured the Scratch website on their front pages. In a matter of hours the server and the website could not handle the traffic andthe website went down several times."

If I did the arithmetic correctly, this represents an average of one new project every minute being posted on the website since the inception of thewebsite in 2007. Of course, many other projects have been created but not published on the website.

Many archived projects are readily available

Thousands of archived projects are available for online execution and/or downloading and examination at the source code level. Thus, the amount ofresource material available to budding Scratch programmers is almost limitless.

Post, review, and comment

MIT makes it possible for every scratcher (as the members of the Scratch community refer to themselves) to share his or her projects for online execution and/or downloading and examination by other scratchers.MIT also makes it possible for other scratchers to review and critique the projects shared by others. Registration is free and open to everyone.

MIT seems to make a significant effort to hide the true identities of the registrants and also seems to make a significant effort to ensure that theposted material is age appropriate for middle school students. (See Community Guidelines .)

An organized system for peer review and critique is provided. The system is too elaborate for me to describe. If you want toknow more about it, simply register (become a scratcher) and take a look at it for yourself.

A world-wide phenomenon

This is not just a United States phenomenon. The scratchers are located in many different countries around the world. A forum is providedfor scratchers to exchange information with one another. As of this writing, that forum is available in at least fifteen different languages.

Also, many scratchers whose first language is not English participate in the English version of the forums and provide English-language descriptions of theirprojects when they publish them.


An article published around 2008 stated that based on the first five months of usage data,

"...users are primarily age 8 to 17, with a peak at age 12. A good number of users are adult computer hobbyists and educators that createprojects in Scratch, even though a lot of them know other professional programming languages. Some members of the community have emerged asmentors that help the beginners and provide advice."

The article also stated,

"While 70 percent of users are male, no correlation was found between gender and the number of projects... This indicates that even thoughthe majority of users are male, the females are as engaged in creating projects as the males."

Questions & Answers

what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Teaching beginners to code. OpenStax CNX. May 27, 2013 Download for free at http://cnx.org/content/col11498/1.20
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