Hedy Lamar was known as the most beautiful actress, but she was also very smart. She came up with an idea, which is known as frequency hopping. Although many people thought it was a dumb idea at the time, it has turned into a very important part of our lives. Frequency hopping led to the invention of Wifi. Wifi is used by millions of people every day. Out of all of the ideas I've learned about Wifi has changed my life the most. Wifi allows you to talk to anyone almost anywhere. Last week I missed the bus, so I texted my mom; she was able to pick me up so I didn't have to wait for the late bus. I was sick last month, and I needed to know what e homework was, so I texted a friend and found out what the homework was. Last year I had
