Time travel Tuesday #timetravel a look back at the Adafruit, maker, science, technology and engineering world

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Nothing is as far away as one minute ago. ~Jim Bishop

1493 – Paracelsus, Swiss-German physician, botanist, astrologer, and occultist is born.


Paracelsus was a Swiss German Renaissance physician, botanist, alchemist, astrologer, and general occultist. He founded the discipline of Toxicology. He is also known as a revolutionary for insisting upon using observations of nature, rather than looking to ancient texts, in open and radical defiance of medical practice of his day. He is also credited for giving zinc its name, calling it zincum. Modern psychology often also credits him for being the first to note that some diseases are rooted in psychological illness…

Paracelsus’ most important legacy is likely his critique of the scholastic methods in medicine, science and theology. Although these faculties did not exist separate from each other during his time, his attitudes towards the uncritical copy of the teachings of the old Fathers of Medicine, such as Avicenna and Averroes, without categorically denying their obvious merits, was his first and foremost achievement for independent and empirical approaches to research and teaching. Much of his theoretical work does not withstand modern scientific thought, but his insights laid the foundation for a more dynamic approach in the medical sciences.

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1620 – The Mayflower Compact is signed in what is now Provincetown Harbor near Cape Cod.


The Mayflower Compact was the first governing document of Plymouth Colony. It was written by the Separatists, sometimes referred to as the “Saints”, fleeing from religious persecution by King James of England. They traveled aboard the Mayflower in 1620 along with adventurers, tradesmen, and servants, most of whom were referred to, by the Separatists as “Strangers”.

The Mayflower Compact was signed aboard ship on November 11, 1620 by most adult men. The Pilgrims used the Julian Calendar, also known as Old Style dates, which, at that time, was ten days behind the Gregorian Calendar. Signing the covenant were 41 of the ship’s 101 passengers, while the Mayflower was anchored in what is now Provincetown Harbor within the hook at the northern tip of Cape Cod.

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1930 – Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention, the Einstein refrigerator.


The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate. It was jointly invented in 1926 by Albert Einstein and his former student Leó Szilárd and patented in the US on November 11, 1930 (U.S. Patent 1,781,541).

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2009 – Adafruit launches a tutorials and projects section of the site!


Back in 2009 we launched our tutorials and project section of adafruit.com. It would later become our learning system! Check out how it looked when it was first launched in the photo above and go here to see what our learning system is like today!

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CircuitPython in 2018 – Python on Microcontrollers is here!

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Maker Business — Prototyping PCBs with Particle, a guide from a pro in the field #makerbusiness

Wearables — Learn about stretch

Electronics — Test for interference on the cheap!

Biohacking — Visualizing FLU Data with Wearables

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