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This Week in Tech History: Edison’s Incandescent Bulb

Edison produces his first incandescent bulb, the transistor radio makes its debut and the first all-female spacewalk takes place… It all happened This Week in Tech History.

This week in 1879 – After 14 months of experimenting in Menlo Park, NJ, Thomas Edison succeeded in producing a working prototype of the electric, incandescent lamp, using a filament of carbonized thread. It lasted for thirteen and a half hours before burning out.

1919 – The Radio Corporation of America (RCA) was formed. The company became a giant in electronics, especially radios and TVs. It would later own its own TV network (NBC) and other broadcast interests.

1954 – Texas Instruments announced the first Transistor radio. They quickly became one of the most popular electronic communication devices in history, with billions manufactured during the 60s and 70s.

1967 – Mariner 5 did a fly-by of Venus and sent back data indicating that the planet had no magnetic field and that its surface was unfit for human habitation.

And this week in 2019 – NASA Astronauts Jessica Meir and Christina Koch took part in the first all-woman spacewalk when they ventured out of the International Space Station to replace a power controller.

Written by Chris Graveline

Chris has covered consumer technology for over 20 years. He is the host of This Week in Tech History as well as a regular co-host on "Into Tomorrow with Dave Graveline" and our Technical Director.

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