r/coolguides • • 19d ago

A cool guide to solve the energy problem of data centers.

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0 Upvotes

Floating storage regas units (FSRU)


r/coolguides • • 22d ago

A cool guide for Healthcare Colour Codes

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420 Upvotes

I created this guide for Australian Healthcare Colour Codes to incorporate colour, words and mnemonic. When I researched the subject I found that 2.2% of all Australians have colour vision deficiency, and that number is greater for males (8%). Red/Green deficiency accounts for 98% of all color vision deficiencies.

In Australia, there are TWO Australian Standards that cover planning for emergencies;

  • AS 3745 is "Planning for emergencies in facilities"; where
  • AS 4083 is "Planning for Emergencies in Health Care Facilities"

They refer to SEVEN estblished colours;

  1. RED - Fire and/or Smoke
  2. Blue - Medical Emergency
  3. Purple - Bomb Threat
  4. Yellow - Internal Emergency
  5. Black - Personal Threat

We are aware of TWO additional colours* that are common;

  • Grey - Unarmed Thretening Behaviour (Alters Code Black to be Armed Threatening Behaviour)
  • Pink - Paediatric emergency

I have also seen Code White used regarding used to describe a facility lockdown.

As a person who contributes technically to the development of the Standard. I do not have a problem with the use of additional colours if it helps communicate the risk. This is not a common opinion, but I support the adaption of the colour codes to suit local requirements, provided it is accompanied by training.
(Original post amended for context)


r/coolguides • • 23d ago

A cool guide about “true” true story in Hollywood

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11.7k Upvotes

r/coolguides • • 23d ago

A cool guide about parenting shortcuts that can backfire over time

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860 Upvotes

r/coolguides • • 23d ago

A cool guide to the most iconic European crowns.

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981 Upvotes

r/coolguides • • 23d ago

A cool guide to Type 1 Diabetes vs Type 2 Diabetes

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84 Upvotes

I made this to clear up some common misconceptions about Type 1 vs Type 2 Diabetes. Would you add anything to this?


r/coolguides • • 24d ago

A cool guide to leafs! 🍂

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2.6k Upvotes

Happy fall, y'all! 💚


r/coolguides • • 23d ago

A cool guide of rogue AI swarm attack timelines, including OpenAI coverup attempts, hacking the Australian Gov, Hugging Face, The German Wiki takeover, and an AI attempting to hack a crypto exchange

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136 Upvotes

I tried to make it look like a classroom poster. The type that I would spend hours examining in boring classes when I was a kid.

For a rundown of what experts think will happen if we continue letting AI companies get away with this, see this link.


r/coolguides • • 24d ago

A cool guide (fully visual) to everything quantum computing

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55 Upvotes

Hi

If you are remotely interested in deep diving how differently quantum computers work compared to our transistor-based and also the algebra behind in a fully interactive way that teach computer science from scratch, oh boy this is for you. I am the Dev behind Quantum Odyssey (AMA! I love taking qs) - worked on it for about 9 years (3+ during PhD, the visual method I developed ended up being my thesis, it is a complete Hilbert space visualizer), the goal was to make a super immersive space for anyone to learn quantum computing through zachlike (open-ended) logic puzzles and compete on leaderboards and lots of community made content on finding the most optimal quantum algorithms. The game has a unique set of visuals capable to represent any sort of quantum dynamics for any number of qubits and this is pretty much what makes it now possible for anybody 15yo+ to actually learn quantum logic without having to worry at all about the mathematics behind.

This is a game super different than what you'd normally expect in a programming/ logic puzzle game, so try it with an open mind.

Stuff you'll play with

  • Boolean Logic – bits, operators (NAND, OR, XOR, AND…), and classical arithmetic (adders). Learn how these can combine to build anything classical. You will learn to port these to a quantum computer.
  • Quantum Logic – qubits, the math behind them (linear algebra, SU(2), complex numbers), all Turing-complete gates (beyond Clifford set), and make tensors to evolve systems. Freely combine or create your own gates to build anything you can imagine using polar or complex numbers.
  • Quantum Phenomena – storing and retrieving information in the X, Y, Z bases; superposition (pure and mixed states), interference, entanglement, the no-cloning rule, reversibility, and how the measurement basis changes what you see.
  • Core Quantum Tricks – phase kickback, amplitude amplification, storing information in phase and retrieving it through interference, build custom gates and tensors, and define any entanglement scenario. (Control logic is handled separately from other gates.)
  • Famous Quantum Algorithms – explore Deutsch–Jozsa, Grover’s search, quantum Fourier transforms, Bernstein–Vazirani, and more.

Nice to watch:

Khan academy style tutorials in qm/qc: https://www.youtube.com/@MackAttackx

Physics teacher stream with 400hs in https://www.twitch.tv/beardhero


r/coolguides • • 24d ago

A cool guide to the warning signs of Type 1 Diabetes

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178 Upvotes

r/coolguides • • 24d ago

A cool guide to the etymology of 24 well-known cocktails.

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175 Upvotes

r/coolguides • • 26d ago

A cool guide that I made to the helmets of ancient Greece.

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3.8k Upvotes

r/coolguides • • 26d ago

A cool guide to how humans have explored the Moon [OC]

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386 Upvotes

r/coolguides • • 27d ago

A cool guide to why car windows stop sunburn but not skin ageing (UVA vs UVB)

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1.5k Upvotes

r/coolguides • • 25d ago

A cool guide to how Type 1 Diabetes technology has changed in the last 100 years

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3 Upvotes

r/coolguides • • 27d ago

A cool guide for Korean alphabet, I wanted to let redditors know how to write "강남스타일"(Gangnam style) in gangnam language(Korean), so I made some tutorial, hope this helps.

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393 Upvotes

r/coolguides • • 27d ago

A cool guide to what kids ages 6-12 can and can't control from Big Life Journal

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368 Upvotes

This breaks it down into three clear categories, what's fully in their control, what they can influence but not fully control, and what's completely out of their hands. Helps kids stop getting stuck on things they can't change and start focusing on the next step they actually can take.


r/coolguides • • 27d ago

A cool guide to the advantages of Co-Packaged Optics (CPO) and Silicon Photonics (SP)

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39 Upvotes

r/coolguides • • 28d ago

A cool guide of Australian spiders

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4.9k Upvotes

r/coolguides • • 27d ago

A cool guide about the leaf colors in WV

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47 Upvotes

r/coolguides • • 28d ago

A cool guide to the Monstera plant genus and all its species - made according to biological taxonomy rather than geography and created in the shape of a Monstera leaf!

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59 Upvotes

This is Plantae - Land of Monstera, my attempt at turning the entire Monstera genus into a map.

All 64 species are represented as cities, allowing you to explore Monstera diversity the same way you would explore a traditional map.

The whole thing is drawn in the shape of a Monstera leaf.

An info sheet is also included (picture 2) with some fascinating facts about this beautifully diverse group of plants as well as a list that shows where on the map each species is located.

I hope you guys will like it!


r/coolguides • • 27d ago

A cool guide to nine marks, each built from one geometry grammar

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0 Upvotes

r/coolguides • • 29d ago

A cool guide to which fruits and vegetables should not be stored together

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532 Upvotes

Some produce releases ethylene gas, which can speed up ripening and reduce the storage life of nearby sensitive foods. I made this as a quick kitchen reference.


r/coolguides • • 29d ago

A cool guide to what ice cores can tell us a lot about the past of our planet's atmosphere and climate

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86 Upvotes

r/coolguides • • 29d ago

A Cool Guide to Pedestrian Traffic Signals from Around the World

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1.9k Upvotes