This 4Kids Detective game has expired. To play the current Kid Quest Challenge, go to www.4Kids.org/kidquest/.
1. Who is the Necker Cube illusion named after?
Dear Lisa: I found a good beginning place to learn sign language. Go to www.disserv.stu.umn.edu and take the Interactive Spelling Guide link. Click on a letter of the alphabet and you will see a picture of how to shape your hand to sign that letter. I learned how to sign my name. You can also learn all about Braille, and take a finger spelling quiz. (This site is no longer available.)
Dear Amy: How does the Internet work and where does it get all its information? --Marcia , Danube, MN
Dear Marcia: The Internet is really lots of networks connected together. When you dial in with your modem, you get connected to the Internet, too. Server computers are waiting for you on these networks. Server computers let you connect to them and get their files. People put files on these computers (this is called uploading) so that the files can be downloaded or sent down to your personal computer. When the files are on the server, it's called a database of information. So all that information is out there just waiting for you to call.