No Instagram, No Privacy
I somehow escaped having an Instagram account. This means that I am oblivious to all of my friends’ fun broadcasted on Instagram. I don’t feel pressured either to update the abstract audience of everyone I ever connected with online, on where I am, what I am doing or who I am hanging out with. I […]
Dimension 126 Contains Twisted Shapes, Mathematicians Prove
It can be tempting to assume that your intuitions about three-dimensional space carry over to higher-dimensional realms. After all, adding another dimension simply creates a new direction to move around in. It doesn’t change the defining features of space: its endlessness and its uniformity. But different dimensions have decidedly different personalities. In dimensions 8 and […]
How are cyber criminals rolling in 2025?
Speaking of earning a living, would you expect them to pay for web hosting/ cloud providers? Free content hosting Governments Government departments are not known for their amazing cyber security posture. Couldn’t they be utilized as free hosting providers? and it is truly international Universities & schools How about universities? they have a lot of […]
Show HN: VectorVFS, your filesystem as a vector database
VectorVFS is a lightweight Python package that transforms your Linux filesystem into a vector database by leveraging the native VFS (Virtual File System) extended attributes. Rather than maintaining a separate index or external database, VectorVFS stores vector embeddings directly alongside each file—turning your existing directory structure into an efficient and semantically searchable embedding store. VectorVFS […]
How linear regression works intuitively and how it leads to gradient descent
Learning, to a computer, is just turning bad guesses into better ones. In this post, we’ll see how that starts with a straight line: how linear regression makes the first guess, and gradient descent keeps improving it. Let’s start with something familiar: house prices. Bigger houses tend to cost more; smaller ones, less. It’s the […]
Geometrically understanding calculus of inverse functions (2023)
Given a function such as (tan x), could you write (frac{d}{dx} arctan x) and (int arctan x ; dx), just from (tan x), (frac{d}{dx} tan x) and (int tan x ; dx)? With some caveats, the inverse function theorem answers the former while the Legendre transformation answers the later. We’ll approach this with as much […]
A Tektronix TDS 684B Oscilloscope Uses CCD Analog Memory
I have a Tektronix TDS 684B oscilloscope that I bought cheaply at an auction. It has 4 channels, 1 GHz of BW and a sample rate of 5 Gsps. Those are respectable numbers even by today’s standards. It’s also the main reason why I have it: compared to modern oscilloscopes, the other features aren’t nearly […]
Show HN: Bracket – selfhosted tournament system
Demo · Documentation · Quickstart · GitHub · Releases Tournament system meant to be easy to use. Bracket is written in async Python (with FastAPI) and Next.js as frontend using the Mantine library. It has the following features: Supports single elimination, round-robin and swiss formats. Build your tournament structure with multiple stages that can have […]
History of “Adventure” for the Atari 2600
Of all the original games Atari put out for the VCS, Adventure may be the one that most people are familiar with today. Warren Robinett’s third and final VCS game – though seemingly the second to actually be released – serves as a counterweight to the arcade action of its March 1980 brethren Space Invaders […]
Jiga (YC W21) Is Hiring Engineers
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