I have previously mentioned Grid Republic as a social network for a scientific or medical purpose, whereby a community of people across the world get together to use their spare computing power to do distributed computing with a capacity in terraflops - ie very big - through a rather clever screensaver download.
However this is a passive form of science where one just allows one's computer to be used for a wider purpose.
Yesterday evening I discovered Galaxy Zoo - a far more exciting piece of scientific endeavour where you can directly contribute to the scientific work online.
In this case you are helping astrophysicists to map distributions of various types of galaxy (elliptical and spiral are the two broad forms, but there are lots of sub-groups) by joining the online team (now 115,000 strong since the project started in July 2007) assessing photos of over 200 million objects taken by the Sloan Digital Sky Survey (SDSS). This will assist with a far greater understanding of the lifecycle of galaxies, many of which go through mergers to move from spiral to elliptical - our own Galaxy's probable fate.
Whilst computers can be used to assess many things, when it comes to indistinct photos of two merging galaxies edge on to earth view the eye and the brain are still superb tools. However the sheer amount of data being generated means scientists and their students do not have the time to do this themselves and should they be wasting their discovery time anyway?
This is a project where anyone online at home can help.
You need no prior knowledge to take part in the work. Once you join Galaxy Zoo you are given simple online tutorials and in order to start assessing pictures you then take a short online test where you have to get 8 out of 15 pictures right - this is because they get up to 35 people to look at each photo and then recheck any disagreements between viewers.
Having passed the test you can then assess photos. For someone like myself who spent every non cloudy night from the age of 10 to 11 outdoors in the evening doing astronomy, this is a much warmer experience and could get quite addictive in a Sudoku sort of way! I did 45 galaxies last night and have resisted doing it tonight only so I could blog about it.
Apart from its benefits to astrophysics, I have started to think whether such a system could be used in other more terrestrial areas of activity.
A few came to mind:
- Assessing the millions of earth satellite photos to identify issues such as climate change and land use. On a more local level TCC has a project called Carbon Crime Stoppers and I wonder whether a photo assessment system could work with that?
- It could be used for community engagement where residents could both submit and assess street scene photos that either other residents had taken of the Council regularly took from its front-line staff going about their daily duties with handheld PDA's. This of course would be a culture change for local government where it effectively employed teams of online resident non-professionals. However creating resident buy in with the prioritisation of street scene issues could be a great way of developing community cohesion in the future.
- Assessing biodiversity in local authority parks and gardens through the taking and assessment of photos. Again this could bring together communities in worthwhile projects.
The above are just tentative thoughts and I would welcome further suggestions.
What is interesting is that this sort of project could give young people a strong and empowered role in any local activity. Galaxy Zoo says it has young people from 8 years old upwards assessing photos.
Therefore in years to come both science and community cohesion could strongly benefit from online communities collaborating to solve problems. What might have started as project to understand galactic evolution could be just the thing to massively expand the collaboration between local authorities and the communities they represent.
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