0

The Mysterious Origins of the Smallpox Vaccine

9525240640 c64007d102 k

Fascinating read from SmithsonianMagazine.

In 1796, English physician Edward Jenner had a hunch. As hundreds of thousands around him succumbed to the blistering agony of smallpox, Jenner’s eye was on the rosy, unblemished complexion of Sarah Nelmes, a local milkmaid. Her skin bore none of the oozing lesions that signaled almost certain death for a third of smallpox sufferers—save for her hands, busily milking a cow named Blossom.

The locals called the unsightly affliction “cowpox.” But apart from a smattering of welts, Sarah and her fellow milkmaids were remarkably free of disease. To Jenner, this wasn’t a coincidence. Acting on little more than sparse observations, Jenner decided to extract a small sample of Sarah’s pus and inject it into the arm of a young boy named James Phipps. To everyone’s amazement—including Jenner’s—when Jenner stuck Phipps with a second needle, this time sporting a hefty dose of smallpox, Phipps remained healthy. Against all odds, the risky treatment had granted the child miraculous immunity.

Read more.


Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.

Join 7,500+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — Fewer startups, and other collateral damage from the 2018 tariffs

Wearables — Light as a Worbla feather

Electronics — How to make your own magnetic field probe!

Biohacking — The State of DNA Analysis in Three Mindmaps

Python for Microcontrollers — One year of CircuitPython weeklies!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.


Leave a comment

Adafruit has a "be excellent to each other" comment policy. Help us keep the community here positive and helpful. Stick to the topic, be respectful of makers of all ages and skill levels. Be kind, and don't spam - Thank you!

Prove you are human by reading this resistor:

0Ω+/- 5%

0
0
1
2
3
4
5
6
7
8
9

0
0
1
2
3
4
5
6
7
8
9

0
0
1
2
3
4
5
6
7
8
9

5
5
10

Prove you are human by reading this resistor:


Match the sliders on the left to each color band on the resistor.

Click Here for a new resistor image.

New to electronics? Click here to learn how to read resistor values.

Or learn to read resistors by playing Mho's Resistance!