I read about two inventions today that I had to share with you. Both solve real problems for those in the developing world who cannot afford solutions or do not have access to the technology we use to solve these problems.

• AdSpecs: These are glasses with oil-filled lenses that allow a person to adjust the amount of fluid in the lens which, in turn, allows them to set their glasses at the proper prescription to correct their vision without the need for an expensive eye exam or access to opticians. This is an initiative by Centre for Vision in the Developing World, and the goal is to be able to manufacture them at $1 a pair to provide vision care to those in the developing world.
  

  Photo from Centre for Vision in the Developing World

• JaipurKnee: This prosthetic knee was developed by a group of Stanford engineering students, and it costs only $20 to manufacture. $20 to make a prosthetic knee… that’s amazing. And it’s similar to titanium joints in that it doesn’t just swing one way. It actually functions similar to a knee. For $20. It’s being tested in India.
  

  Photo from Davies and Starr for Time Magazine

What are some neat inventions you’ve read about recently?