STEM Hub: Calculators That Show Their Work
A free browser-based workspace of physics, chemistry, unit-conversion, and scientific calculators with transparent formulas, explicit units, and worked examples.
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94,650 catalogue cards
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10321
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10322
Stockyard: the stock market as a petting zoo
An interactive market simulation where 24 real tickers become pets in a pixel-town trading game.
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10323
Plus Jamais Club: a smoking-cessation evidence desk
A French-language guide that evaluates 21 ways to quit smoking against research from Cochrane, HAS, Inserm, ANSES, and the WHO.
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10324
StructTrace: When Valid JSON Is Still Wrong
A local-first tool that compares baseline and candidate structured outputs to catch semantic regressions hidden behind valid schemas.
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10325
Substrate Digest, Issue 04: The Ice Bath Did Not Blunt the Adaptation
A research digest that turns recent nutrition, exercise, gut-health, and metabolism studies into a seven-study issue with a 17-minute audio edition.
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10326
Summit Book, an archive for mountaintop signatures
A searchable, crowd-sourced archive of photographed summit-register pages, machine-transcribed and corrected by people.
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10327
SwimVolt Measures the Dive Start, Frame by Frame
A phone-based swim-start analysis tool that tracks a diver’s body through setup, launch, flight, and entry, then recommends one correction.
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10328
Tandem shares a real terminal, not a video of one
A macOS app lets a host invite browser guests into the same live shell, with read-only access by default and typing granted per person.
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10329
The Fund Has Never Lost a Trade
A parody meme-coin fund whose two AI portfolio managers have executed zero trades since inception.
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10330
CHAIR: A Satirical Archive of One Very Important Seat
A theatrical satire about a symbolic chair occupied by central-bank officials and other financial power brokers.
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10331
The Mamdani Signal: NYC’s TikTok Infrastructure Watch
A searchable civic feed that turns TikTok reports of New York City problems, projects, and fixes into location-based signals.
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10332
Nabe puts property listings on the street map
A no-account property map showing rental and sale listings at their actual building locations across Estonia and Montenegro.
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10333
The Olde East End Manor
A serialized story about Noori, family secrets, criminal dealings, and one impossible place dragged out of the dark.
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10334
The Shidduch Guys, Matchmaking by Introduction
Daniel and Aviv offer free, personal matchmaking for Jewish singles through a short form, an introductory call, and permission-based introductions.
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10335
The Spec Ref: Reference Tables for the Shop
A set of industrial size and gauge charts covering tap drills, threads, wire, pipe, sockets, torque, rebar, and more.
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10336
Threefold, a Camera with Three Folds
An iPhone camera built around three live film looks: Flash, Day, and After Dark.
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10337
Tickets to Calmville, First Class
A free interactive site for sending someone an all-expenses-paid ticket to the imaginary destination of Calmville.
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10338
TiltFish: Train chess by making Stockfish worse
A chess training game where finding the best move weakens Stockfish instead of defeating it outright.
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10339
Tone of Voice Generator Makes a Briefing File for Your AI
A browser-based tool asks eleven questions about how a brand writes, then generates voice files for ChatGPT, Claude, Gemini, Copilot, Cursor, and style checkers.
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10340
Graflio — Amazon listing images built on real research
Graflio turns an Amazon ASIN into a research-backed set of editable product infographics.
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10341
RevDex Turns Street-Car Spotting Into a Collectible Card Game
RevDex identifies cars from a single photo and files them into a personal collection with specs, rarity tiers, badges, maps, and rival garages.
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10342
A Budget and Door-Split Sheet for Cultural Events
A free, browser-based Spanish-language tool that builds event budgets, calculates break-even attendance, and exports editable Excel or PDF reports.
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10343
Turf Alert — know before you mow
A UK lawn-care email service that watches postcode-level weather and tells you when to mow, feed, treat, or water.
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10344
ULgear.com — Trail Engineering by the Gram
A Japanese database for comparing ultralight backpacking gear by weight, capacity, insulation value, temperature rating, and price.