The difference between blogs and wikis

Blogs and Wikis are a world of difference, and in my opinion, cannot be logically compared as the same.
Blogs are managed by most often one person, sometimes multiple owners called admins run the site to keep it in the most updated fashion possible. You can not alter posts, but you may comment below them. If you are the owner or admin you have full power to do whatever, whether it be altering, deleting, or creating new posts. Blogs are used to share information to a group of people, but not so much for a group of people to give input.
Wikis are in a very vague way similar to blogs. They are online, and available to share information. Wikis are only view able by someone who can also manage the site too, or an admin. An admin cannot alter or delete anyone else's posts or discussion threads but can comment on them, and create, delete, or alter their own posts, and discussion threads easily.
There is so much difference between a wiki and a blog, I'm unsure in what world they're connected so closely.

Assisted Technology

I find that the most helpful assisted technology are prosthetic limbs, because many people suffer from disabilities such as the loss of a limb, and the prosthetic limbs help people do things they normally would not.
The technology could easily help in school, because a prosthetic hand can allow one to write, and the same for the workplace, and it can also help anyone to hold things in every day life.

Disabled World

Abraham Lincoln was diagnosed with a mood problem called Bipolar Syndrome, which makes him react in strange ways to things, and creates mood swings. Back in his time, there was no cure, but now there is medication to take for the syndrome.
http://www.disabled-world.com/artman/publish/mooddisorders-famous.shtml

Adolf Hitler was diagnosed with PD or Parkinson's disease. This kept him from doings many things and quite greatly impaired his motor skills. Now there are treatments for the such, but Hitler took no precautions
http://www.disabled-world.com/artman/publish/parkinsons-famous.shtml
Peyton Manning was born with a cleft lip, or pallet. The lead quarter back got surgery to fix this problem shortly after birth.
http://www.disabled-world.com/artman/publish/famous-cleft.shtml

Lance Armstrong and Steven Hawking

Lance Armstrong over came adversity when he was diagnosed with testicular cancer that had metastasized to his brain and lungs. The young man used technology to get through this illness such as chemotherapy.

Steven Hawking has a rare condition called ALS that disables this motor skills including speech. He over came his physical disability by having a computer that is compatible to his brain and throat, making words appear on screen of what he wanted to say. Hawking also has a wheel chair to help him get place to place.