This is excellent–a scowling report from one of the inventors of scowling. Uncle Chuckles also catalogued broken glass in his 1857 article, "Table of the Relative Frequency of Occurrence of the Causes of Breaking of Plate Glass Windows" in Mechanics Magazine volume 66 #histstm https://t.co/Dma3UvtKsx
— JF Ptak (@ptak) October 2, 2019
from http://twitter.com/ptak
on: October 02, 2019 at 10:03AM
The voltaic armadillo, electric Earth, and invisible reverse dandruff quack ads of 1877. #histstm #medicine https://t.co/7XAKJqmpk8 pic.twitter.com/YF82KaNPr4
— JF Ptak (@ptak) September 5, 2019
from http://twitter.com/ptak
on: September 05, 2019 at 10:22AM
A Remedial Introduction to "Politics" for Newly-Enfranchised Women in the U.K. (1918) #voting https://t.co/ws8wOsiIrE pic.twitter.com/inYQCHjoXu
— JF Ptak (@ptak) April 8, 2019
from http://twitter.com/ptak
on: April 08, 2019 at 01:52PM
A hydrogen gas sidecar, 1917: #motorcycle #engineer https://t.co/h9K9khd8VJ
— JF Ptak (@ptak) February 12, 2019
from http://twitter.com/ptak
on: February 12, 2019 at 04:11PM
Gravitation conquered at last. From "Science and Invention", October 1927. pic.twitter.com/WDzWOCwS6s
— JF Ptak (@ptak) November 5, 2018
from http://twitter.com/ptak
on: November 05, 2018 at 01:45PM
It is all fun and games until you have to land…image via Wikicommons, being the cover of the September 1922 issue of "Popular Science" magazine. #helicopter #aviation pic.twitter.com/m1gj0WcLQx
— JF Ptak (@ptak) October 13, 2018
from http://twitter.com/ptak
on: October 13, 2018 at 09:15AM
From the portfolio of Dr. Odd: making toy soldiers out of cigarettes. https://t.co/fQ2D0B9cwF
— JF Ptak (@ptak) October 10, 2018
from http://twitter.com/ptak
on: October 10, 2018 at 10:46AM
Cross section of a dirigible, from "Popular Mechanics", 1925. #aviation pic.twitter.com/35yM1DFZSN
— JF Ptak (@ptak) August 22, 2018
from http://twitter.com/ptak
on: August 22, 2018 at 06:10PM
One of the earliest computer games: tic tac toe, by Sandy Douglas, on Cambridge's EDSAC, 1952. #histstm https://t.co/Ze1z2BlWIF pic.twitter.com/YvxONtawO5
— JF Ptak (@ptak) August 22, 2018
from http://twitter.com/ptak
on: August 22, 2018 at 08:29AM
Step father-in-law's list of campaigns with 2nd cav on his discharge papers from October 1945. Stunning, really. pic.twitter.com/ATRdQfts0S
— JF Ptak (@ptak) July 14, 2018
from http://twitter.com/ptak
on: July 13, 2018 at 11:41PM