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== Sustainable white board ==
{{attachment:BuddhaBoard.jpg|BuddhaBoard|width="400"}} http://sageecostore.com/product/650/buddha-board.html 


The goal of project is to develop sustainable alternatives to white boards for use in educational and commercial settings. The inspiration is the Buddha Board (http://www.buddhaboard.com/), a water based marking system with high contrast that erases through evaporation. According to the manufacturer, that technology is not robust enough for a white board replacement. What might be?

=== Inspiration ===
Buddha board images https://www.google.com/search?q=buddha+board&client=firefox-a&hs=SG8&rls=org.mozilla:en-US:official&source=lnms&tbm=isch&sa=X&ei=M-1rUuXUD-r72QX7roDYAg&ved=0CAkQ_AUoAQ&biw=1147&bih=581

=== Advantages ===

People like water. No ink. No ink dust. No disposable pens. High contrast. Apply substrate as paint to any surface. 

=== Market ===

http://www.edweek.org/dd/articles/2012/02/08/02whiteboard.h05.html

Number of students in the US is of order 80 million. Take 20 students and a few white/black boards per class. That's just the education market.

=== Questions ===

Material should be safe and sustainable. Auto erase should be controllable. Use long evaporative time constant then heat or hair dryer for wipe for quick erase?

=== Before you get snarky... ===

Yes, I have heard of the ancient technology called the blackboard. Pretty sustainable those. Plus you can stick magnets on em..

=== Competition ===

IdeaPaint http://www.ideapaint.com/

=== Phosphorescent Laser Painting ===
Draw with lasers http://hackaday.com/2011/01/18/phosphorescent-laser-painting/

Playing with a Blue Laser and Phosphorescent Paint  http://www.youtube.com/watch?v=h-RnL6fUxsY


=== Photochemistry ===

Drawing in liquid with light http://www.helsinki.fi/polymeerikemia/research/calixarenes_2013.html, http://www.youtube.com/watch?v=g5kLCAE7xcA&feature=youtu.be

=== Projectors ===

Tiny projector http://web.media.mit.edu/~stefanm/TinyProjector/
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-Carlsmith