Tasks (from Jan 2023)

Tasks (from Jan 2023)

Work:

About trust

TIL:

Poetry manages Python dependencies with pyprojects.toml
Github Action scripts are reusable scripts
netlify.yaml environment variables can be used by build scripts
Similarly, Github Actions environment variables can also be used by build scripts
Github Actions is split into workflows and jobs. Jobs are seperate virtual machines that run parallely, and runs actions.
Netlify can build private repos.
Github Actions have limits on private repos and domain names.
Github Actions have unlimited build minutes in public repos.
Enable actions/checkout@v3 before accessing the repository in a job.
Actions can be run on push event trigger.

PROJ: Git Hello Worlds
Thought Pruner
Sky
POST: Spacetime
IDEA: Certified Sand Castle, Kite and Bridge Construction expert | The reason we can't scale up sand castles or aircrafts are because the fundamental forces are in inverse square ratio, but scaling is linear; Also that the interconnected forces increase with more particles
IDEA: Adjusting pricing based on supply transport charges
WRITING-PROMPT: The smaller you zoom a Mandelbort set, the chances of getting lost in open space is high. Imagine if you were like AntMan, but you have to touch a particle to come back to being a human.
How to public domain license - Dheeraj
FOSS Bookmark Management: Floccus, xBrowserSync, Briefkasten, Linkwarden
FOSS Writing: StylusLabs Write, Xournal++, Scrivano
Static Site Generators: Sphinx, Hugo, Jekyll, ObsidianHtml, Wiki Engines, docfx, Docusaurus, Gitbook
FACT: Markdown was developed by John Gruber and Aaron Swartz. Gruber wrote the first implementaion for MD to HTML converter in Perl.

Concepts:

Learning Linux: NAND2Tetris, LFS, BLFS, Kernel trimming, MinixFS, UnixFS, xv6, DOS, C | Pop / Gentoo
Package Managers: Homebrew, Store; Source, DMG | Chocolatey, WinGet, Ninite, PortableApps, 0install, Store; Source, EXE, MSI, MSIX, APPX | APT, Aptitude, Synaptic, Zypper, YaST, DNF, YUM, pacman, pamac, aurman, Portage, Nix, eopkg, xbps-install, Snap, Flatpak; Source, DEB, RPM, AppImage | NPM, pip, NuGet, yarn, RubyGems, Composer
Linux Archiving Formats: TAR, gzip, .tgz, ZIP
Linux DAWs: Ardour, MusE, ZRythm, LMMS, QTractor
CAD/CAM/CAE Software: Code_Aster (FEA), SALOME (Geometry and Meshing; Includes SHAPER CAD, PARAVIS, etc.), OpenFOAM, BARAM, CalculiX, FreeCAD, Elmer-FEM, MOOSE | Simscale uses Code_Aster and CalculiX for FEM and OpenFOAM for CFD | ANSYS/SimScale for ease of use | SALOME-Meca (Salome+Code_Aster), Salome CFD, Salome Hydro, TRUST
Mathematics Software: FORTRAN / Octave / MATLAB Symbolic Math Toolbox / SciLab / Maple / Mathcad / Mathematica / Anaconda; SageMath; Lean
Intel: Atom, Celeron (Blank, N, J, G), Pentium (Blank,Pro,D,M,Silver, Gold), Core (2,i3,i5,i7,i9), Xeon (Blank,LV,MV,MP,ULV,L,X,D,E,W,E3,E5,E7,Bronze,Silver,Gold,Platinum) | AMD: AMD, A-Series (Blank, PRO A-Series), E-Series, FX-Series, Athlon (Blank, Gold, Gold PRO), Ryzen ((3,5,7,9)(Blank, PRO)), Embedded, Threadripper (Blank, PRO), EPYC
Embedded: Intel, Qualcomm, Broadcom, NXP iMXP
From 2023, Intel Core, Celeron and Pentium will be replaced with Intel Processor lineup. Pentium and Celeron are brands, but Core is a trademark. The upcoming Processor will also be a trademark. Also i3 N-Series, Processor N-Series and U-Series are being introduced, which do not contain the generation number.
Virtualization, Paravirtualization, Passthrough (GPU/PCIe/VFIO), SR-IOV - https://news.ycombinator.com/item?id=23568006
Aerospace Concepts: Satellite Bus | Geosynchronous Orbits | Hyperloop | Launch Vehicle | Rocket Engine | Space Elevator (Kevlar string can work in Moon)
Aircrafts
- Aerostats (lighter than air) - Balloons (Unpowered), Airships (Powered) | Aerodynes (Heavier than air) - Aerodynamic lift, Powered lift (VTOL)
- Rockets don't depend on aerodynamic lift, and can do spaceflight
\(\rho_0=\rho_t(1+\alpha(T-T_0))\) - For conductors (not semiconductors, which have exponential)
Blender Backup Addon: https://blender.stackexchange.com/questions/6940/config-blender-to-save-backup-files-in-subfolder
Blender Git (easy diffs): https://devtalk.blender.org/t/blendit-blender-git-version-control-for-blender/25992
G-Codes: https://gcodetutor.com/cnc-machine-training/cnc-g-codes.html
Aluminium Alloy Reference: https://www.rcuniverse.com/forum/rc-1-8th-scale-buggies-244/2692445-difference-between-7075-6061t6-aluminum.html
Idea for Fiberglass wrap: https://drones.stackexchange.com/questions/877/what-is-a-good-alternative-to-carbon-fibre-for-a-quadcopter-frame

Quantity	Measures	Meaning	Units
Modulus of Elasticity	Stiffness	Ratio of Stress to Strain	GPa
Ultimate Tensile Strength	Tensile Strength	Maximum Stress before breaking	MPa
Yeild Tensile Strength	Tensile Strength	Maximum Stress before plastic deformation	MPa
Density	Density		g/cm^3
Specific Stiffness	Stiffness/Density		GPa/(g/cm^3)
Specific Strength	Strength/Density		MPa/(g/cm^3)

Material	x1.MoE / Stiffness	x2.UTS / Strength	x3.Density	y1.Specific Stiffness	y2.Specific Strength
E-Glass Fiber	73	3400	2.62	28	1297
Aluminium 7075	71.7	228	2.81	26	81
Aluminium 6061	68.9	124	2.7	26	46
Aluminium 2017A (AU4G)	72	427	2.79	26	153
Balsa Wood	3.71	73	0.16	16	456
CFRC	234	4000	1.7	138	2353
CFRP Epoxy Resin (30%)	141	2040	1.41	100	1447
GFRP	76	8000	1.6	48	5000