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Mary Bellis

Updated Articles and Resources

By Mary Bellis, About.com Guide since 1997

Updated Articles and Resources
  • Young Inventors - School Inventions Created: Thursday, September 22, 2005 Updated: Wednesday, May 08, 2013
    Young inventors and inventions made in school - Fred-Judice - Compromise - O- Matic - Smog-No-More - Robot Cycler - Litter Patrol-Caitie.
  • The History of Answering Machines Created: Friday, December 30, 2005 Updated: Monday, April 29, 2013
    The history of answering machines - the first practical apparatus for magnetic sound recording and reproduction.
  • David Hughes - Carbon Microphone Created: Monday, May 16, 2005 Updated: Monday, April 29, 2013
    David Edward Hughes invented the carbon microphone which was essential to the development of the telephone.
  • The History of Microphones Created: Monday, May 16, 2005 Updated: Monday, April 29, 2013
    The first microphone was a telephone transmitter invented by Emile Berliner for Alexander Graham Bell in 1876.
  • The History of the Telephone - Alexander Graham Bell Created: Friday, November 16, 2007 Updated: Monday, April 29, 2013
    The history of the telephone covering Alexander Graham Bell and Elisha Gray - telephones from early models to todays digital cell phones and pagers.
  • Alexander Graham Bell - First Telephone Patent Created: Wednesday, October 08, 2008 Updated: Monday, April 29, 2013
    See the original patent for the telephone issued to Alexander Graham Bell.
  • How a Telephone Works Created: Monday, April 29, 2013 Updated: Monday, April 29, 2013
    Have you ever wondered how a telephone works, it is an invention that most of us use everyday, yet few of us know how a telephone works.
  • What was Menlo Park? Created: Tuesday, May 05, 2009 Updated: Saturday, April 27, 2013
    Thomas Edison had his first research laboratory in Menlo Park, New Jersey, nicknamed the invention factory.
  • Historical photos and drawings of Thomas Edison inventions Created: Tuesday, May 05, 2009 Updated: Saturday, April 27, 2013
    What better way to learn about Thomas Edison inventions using actual photos and illustrations to make the world of genius called Thomas Edison come alive.
  • Edison Quotes Created: Saturday, April 27, 2013 Updated: Saturday, April 27, 2013
    Notable quotes made by the American inventor, Thomas Edison.
  • Wireless Electricity Created: Saturday, March 30, 2013 Updated: Sunday, March 31, 2013
    How does wireless electricity work and whats in store for the future. Will today's electric toothbrushes lead to tomorrows wirelessly powered cities?
  • History of Toys Created: Saturday, November 18, 2006 Updated: Thursday, March 28, 2013
    Toy inventions and the history of toys including the Slinky, Hula Hoop, Frisbee, SILLY PUTTY, Etch A Sketch, Video Games, Yo-Yo, and more.
  • What's Your Favorite Toy? Created: Wednesday, March 27, 2013 Updated: Thursday, March 28, 2013
    What your favorite toy says about your personality.
  • Who Invented Electronic Cigarettes? Created: Wednesday, February 27, 2013 Updated: Thursday, March 28, 2013
    What looks like, smells like, acts like, but isn't a real cigarette? Electronic cigarettes are the controversial alternative to regular smoking but are they safe? Information about how they work an...
  • What Do You Think About Electronic Cigarettes Created: Wednesday, March 27, 2013 Updated: Wednesday, March 27, 2013
    Whats your opinion about electronic cigarettes? Have your smoked them, or would you, and what do you think about them?
  • Profile of Alfred Nobel Video Created: Wednesday, November 28, 2012 Updated: Tuesday, March 19, 2013
    Interested in learning about Swedish inventor and chemist Alfred Nobel? Watch this About.com video to see a quick biography.
  • Liquid Crystal Display - LCD Created: Tuesday, September 23, 2008 Updated: Monday, March 18, 2013
    James Fergason was the inventor of an improved liquid crystal display or LCD.
  • Who invented OLED Technology? Created: Wednesday, January 30, 2013 Updated: Monday, March 18, 2013
    OLED or organic light emitting diodes technology opens a brave new world in dispaly and lighting technology. The future promises cutting edge innovations, where you will be able to fold up your com...
  • LED - Light Emitting Diode Created: Thursday, March 14, 2013 Updated: Thursday, March 14, 2013
    How the tiny light emitting diode came to be, the function, physics, and inventors of the LED.
  • Be Mine - Who Invented Sweethearts Conversation Hearts? Created: Thursday, February 14, 2013 Updated: Thursday, February 14, 2013
    Have you ever wondered who invented Sweethearts Conversation Hearts? Or who writes the sayings that are found on the heart candies.
  • Valentine Day Special - Heart Shaped Patents Created: Wednesday, February 01, 2006 Updated: Thursday, February 14, 2013
    Valentine inventions and heart shaped patents for romance.
  • Valentine Day Special Created: Wednesday, February 01, 2006 Updated: Thursday, February 14, 2013
    Description: Pope Gelasius I declared February 14 as Valentine Day
  • History of Candy & Desserts Created: Saturday, October 25, 2008 Updated: Thursday, February 14, 2013
    Food history - the origins of candy and desserts.
  • Design Patents - Views For Patent Drawings Created: Tuesday, October 04, 2005 Updated: Wednesday, February 06, 2013
    The drawings or photographs should contain a sufficient number of views to completely disclose the appearance of the claimed design.
  • What are the different classes of goods and services? Created: Wednesday, September 07, 2005 Updated: Sunday, January 27, 2013
    The definition of and the difference between classes of goods and services related to trademarks.
  • Who is Inventing the Cure for Grey Hair? Created: Thursday, January 24, 2013 Updated: Friday, January 25, 2013
    Learn why your hair turns grey and what scientific innovations may someday soon reverse or prevent grey hair all together.
  • Profile of Daniel Hale Williams Video Created: Wednesday, January 23, 2013 Updated: Wednesday, January 23, 2013
    Want to learn about American surgeon Daniel Hale Williams? This About.com videos has the background on the surgeon who performed the first open heart surgery.
  • Profile of the Wright Brothers Video Created: Wednesday, January 23, 2013 Updated: Wednesday, January 23, 2013
    Interested in the pioneers of flight? This About.com video explores the life and achievements of the famous Wright brothers.
  • Profile of George Washington Carver Video Created: Wednesday, January 16, 2013 Updated: Wednesday, January 16, 2013
    George Washington Carver was one of the most notable inventors in U.S. history, with more than 300 inventions in his time. Watch this About.com video to learn more about the life and inventions of ...
  • Profile of Samuel Slater Video Created: Wednesday, January 16, 2013 Updated: Wednesday, January 16, 2013
    Inventor Samuel Slater is often called the founder of the American Industrial Revolution. Watch this About.com video to learn more about the life and inventions of Samuel Slater.
  • Profile of Steve Jobs Video Created: Wednesday, January 16, 2013 Updated: Wednesday, January 16, 2013
    Steve Jobs was one of the most innovative minds of the modern era. Watch this About.com video to learn more about the life and inventions of Steve Jobs, including his founding of Apple.
  • Profile of Philo Farnsworth Video Created: Tuesday, January 15, 2013 Updated: Tuesday, January 15, 2013
    American inventor Philo Farnsworth contributed significantly to the invention of the modern television. Watch this About.com video to learn about the life and inventions of Philo Farnsworth.

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