01
QuadRF
scalerf.com
A 4×4 MIMO software-defined radio platform for visualizing RF sources and beamforming.
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Commenters highlighted its hobbyist-friendly packaging, Wi-Fi RF visualization, and open-source customization.
Issue / 2026-07-10
10 interesting things surfaced from HN on 2026-07-10
A daily board of tools, apps, and references that Hacker News readers pulled into view on 2026-07-10. Each row keeps the original HN thread close to the claim.
At a glance:
Items:10
Threads:8
What surfaced that day
02
War Atlas
waratlas.org
An interactive map and timeline of named wars across human history.
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HN readers praised the interactive concept while discussing its cartographic choices and historical coverage.
03
Combustion Lab
combustionlab.net
A browser-based internal-combustion-engine simulator with live mechanical diagrams.
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Commenters called the live diagrams impressive, while noting that physical validation still matters.
04
Anki
apps.ankiweb.net
A spaced-repetition flashcard app for durable recall across languages, medicine, and technical subjects.
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HN users recommended sentence mining, custom cards, and active-recall practice rather than rote cramming.
05
Memory Machines
memory-machines.com
Research and tools for designing better spaced-repetition learning prompts.
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A commenter recommended its report by Ozzie Kirkby and Andy Matuschak for thinking about modern SRS practice.
06
Lost Worlds
harpercollins.com
Patrick Wyman’s history book reexamining how humans moved from foraging to early states.
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HN commenters recommended it for challenging the familiar linear story of farming, cities, and states.
07
Frigade Skills
frigade.com
An agent layer that learns in-app actions and lets assistants execute them client-side.
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The maker said training runs in demo or staging environments and tool calls execute in the client.
08
Fading Maize
fadingmaize.com
A project revisiting early-2000s band recordings through AI-assisted musical reinterpretation.
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The creators described it as a nostalgic collaboration, while commenters debated the smoother AI-produced sound.
09
Neralie
wiki.xxiivv.com
A decimal-time format with 1,000 beats and one million pulses per day.
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An HN commenter recommended Neralie as a favorite base-10 clock and linked its specification and source.
10
DayClocks
dayclocks.com
A seven-segment clock that prominently displays the current day of the week.
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A commenter called it a favorite retirement gift and reported later thanks from recipients who used it.