Rolling robots are helping to make cultural experiences accessible to disabled people. As the robots get more rugged and have more robust connectivity, they could even be used for visitors to explore national parks.

Rolling robots are helping to make cultural experiences accessible to disabled people. As the robots get more rugged and have more robust connectivity, they could even be used for visitors to explore national parks.

Though few children's books were available, penny dreadfuls were highly accessible, especially to male youths who created clubs in order to pool their money and start their own libraries.

Educational technology could potentially reach millions of out-of-school children in Africa, but in order for it to become relevant and accessible, many areas still need to provide the electricity to power E-learning devices.

Educational technology could potentially reach millions of out-of-school children in Africa, but in order for it to become relevant and accessible, many areas still need to provide the electricity to power E-learning devices.

Obsessive coverage of celebrity culture helped to make being a celebrity seem both more desirable and yet more accessible than ever before. Tellingly, the Bling Ring were able to look up celebrities' movements on tmz.com.

Obsessive coverage of celebrity culture helped to make being a celebrity seem both more desirable and yet more accessible than ever before. Tellingly, the Bling Ring were able to look up celebrities' movements on tmz.com.

Obsessive coverage of celebrity culture helped to make being a celebrity seem both more desirable and yet more accessible than ever before. Tellingly, the Bling Ring were able to look up celebrities' movements on tmz.com.

President Barack Obama will propose further tax increases on the affluent to help pay for his promise to make health care more accessible and affordable.