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2. List of projects published in Radio-Electronics magazine

   en.wikipedia.org/wiki/List_of_projects_published...

   Know the state of your health and fitness. This project displays your heart rate in beats-per-minute by simply attaching an opto-electronic sensor to your finger. Robert Grossblatt: 53/9: September 1982 Picture phone: Part 2—Adapter sends video pictures over the telephone line to a remote location. Josef Bernard: 53/9: September 1982 Stereo ...

3. Watch Your Kids Experiment and Learn With These Editor ... - AOL

   www.aol.com/best-science-kits-kids-213500763.html

   Teach kids ages 8 and up about the laws of physics with this comprehensive science kit featuring six different projects, including a rubber band car, sharpening wheel, and rocket launcher.

4. Little Professor - Wikipedia

   en.wikipedia.org/wiki/Little_Professor

   When the user turns the Little Professor on and selects a difficulty level, an incomplete equation such as "3 x 6 =" appears on the LED display. The user has three chances to enter the correct number. If the answer is incorrect, the display shows "EEE". After the third wrong answer, the correct answer is shown.

5. List of open-source hardware projects - Wikipedia

   en.wikipedia.org/wiki/List_of_open-source...

   This is a list of open-source hardware projects, including computer systems and components, cameras, radio, telephony, science education, machines and tools, robotics, renewable energy, home automation, medical and biotech, automotive, prototyping, test equipment, and musical instruments.

6. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   The first LED was created by Soviet inventor Oleg Losev [9] in 1927, but electroluminescence was already known for 20 years, and relied on a diode made of silicon carbide. ...

7. Evil Genius (book series) - Wikipedia

   en.wikipedia.org/wiki/Evil_Genius_(book_series)

   April 29 - Fuel Cell Projects for the Evil Genius by Gavin D. J. Harper; May 13 - Bike, Scooter, and Chopper Projects for the Evil Genius by Brad Graham, Kathy McGowan; August 6 - 46 Science Fair Projects for the Evil Genius by Bob Bonnet, Dan Keen; September 17 - 40 Telephone Projects for the Evil Genius by Thomas Petruzzellis