#ebook of “Freedom through Disobedience” by C.R. Das #politics
#ebook of “The Roman Index of Forbidden Books”, a 1908 defense of the Index Librorum Prohibitorum by some Jesuit bastard, also listing its contents (in full?) #censorship
randomly ordered list of #ebooks from Project Gutenberg
the Cromer cycle is a #thermodynamic cycle using #desiccants for indoor climate control
analysis of #desiccants market, including activated charcoal
waterglass plus magnesium salts gives an amorphous talc adsorbent used as a food additive to, say, keep salt from clumping. #materials
I²C #hardware sometimes needs level shifters; there's a bidirectional level-shifter design using a single MOSFET per line
speech recognition has worked well for 25 years but still isn't widely adopted even by its creators; describes a speech-based search engine for video content. #history
weekly #photovoltaic #pricing information, not just cells but various kinds of inputs. #energy
#photovoltaic #pricing information provided as a PNG, again including not just cells but various kinds of inputs. #energy
#Don-Lancaster’s 2020 blog, covering power electronics #hardware, the CMOS cookbook, hanging canals, HVAC efficiency, #photovoltaic #energy, and so on.
the role of CMOS bootstrapping in the creation of the Intel 8008, explaining the circuit and its historical context. #hardware
"LiveCode" is a free-software HyperCard clone which reads HyperCard stacks. Shows the development of an example calculator program and compiling it to an executable.
Discussion of #LiveCode.
nicely hand-lettered crepes menu with some tasty crepes #recipes
#mechanical models, the Kinematic Models for Design Digital Library, formerly at Cornell, based on the Reuleaux Collection of Mechanisms and Machines
Notes on tool #steel formulation, hardening, tempering by oxide interference color, temperature by incandescence color, Rockwell C hardness by tempering, etc., “from the perspective of a woodworker” #materials
how to anneal mild #steel sheet #materials
