<p>This podcast is about three inventors, and how their inventions changed the world. Alexander Miles invented the automatic opening and closing doors of the elevator. Marie Van Brittan Brown invented the home security system. Sarah Boone invented the ironing board. </p>

This podcast is about three inventors, and how their inventions changed the world. Alexander Miles invented the automatic opening and closing doors of the elevator. Marie Van Brittan Brown invented the home security system. Sarah Boone invented the ironing board.

<p>This podcast is about three inventors, and how their inventions changed the world. Alexander Miles invented the automatic opening and closing doors of the elevator. Marie Van Brittan Brown invented the home security system. Sarah Boone invented the ironing board.&nbsp;</p>

Alexander Miles, Marie Van Brittan Brown, Sarah Boone

This podcast is about modern-day African American inventors. Their inventions have mad a significant impact in this world. It's time for these modern-day inventors to be recognized for the work they did.

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Alexander Miles, Marie Van Brittan Brown, Sarah Boone

Alexander Miles, Marie Van Brittan Brown, Sarah Boone