Bitter Grounds Magazine

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New Articles from History of tech

February 24, 2021

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The Pringles can, 1 patent & a new design

The Pringles can, 1 patent & a new design

Pringles cans have been in the news lately so I thought I'd look up the original patent for the container. Along the way, I learned a few interesting things about the can, Pringles and their “hyperbolic paraboloid-shaped potato chips”, or as the rest of us describe it...

This is terrifying! Two faced teddy bear anyone?

This is terrifying! Two faced teddy bear anyone?

Feast your eyes on the original Two Faced Teddy! One side is an adorable, cuddly teddy bear. The reverse, a po-faced human staring at you with dead eyes. Not sure how I stumbled across this one. I was looking for patents dealing with early radium products and became...

NASA patent & technical drawing bonanza

NASA patent & technical drawing bonanza

I’ve been rooting around looking for something interesting to explore and came across NASA Patents of Apollo Drawings and Technical Drawings page. I was looking for a couple of space-related patents and started with NASA's website to see if I could narrow down...

We were promised magnificent flying cars

We were promised magnificent flying cars

I know I promised irradiated feet, but I couldn’t pass up the Edsel of flying cars. Take a moment to appreciate the breathtaking fins on this: Every time I look at the drawing, I think it needs to be a deep cherry red with chrome so bright you need sunglasses to...

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About the author

Haven't decided what to say.  I'll have to chew on this for a few weeks before I figure out what to drop into this section, but it certainly needs...

Bitter Grounds Magazine & Catpaw

Bitter Grounds Magazine is the latest incarnation of a long line of blogs/magazines I've kept since the early days of the public Internet. My first...
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