Expression of frustrations through the choir
Buildable music devices
Gathering of all the photos from the Apollo lunar expeditions
Find the images that match your needs and generate color on the fly.
Collective repository of audio samples under different Creative Commons licenses
OBIS builds and maintains a global alliance of scientists to facilitate free and open access to data and information on biodiversity and marine life.
Some drawings by Mullana in Creative Commons, mainly on famous women.
Sharing and making technical aids for people with disabilities
Photos under various free or open licenses
Oppia’s mission is to provide a learning platform that meets the unique needs for under resourced communities.
Protect yourself from high heat at a lower cost with CoolRoof DIY!
Set learning free
