Featured Image: Outline drawing of a submarine. SOURCE ckler.com (public domain).
At age 12, he built the “Cleaning Car,” a remote-control vehicle that could mop and vacuum the floor.
When his sixth-grade science teacher mused about how nice it would be to have a device that got people to hush or clap on cue, he arrived at school the next day with a homemade quiet/applause sign with lights . . . Read Complete Report