video Watch how 19th-century Genaille-Lucas calculating rulers work Andrea James

Boing Boing Gadgets The iPhone of slide rules David Pescovitz

Technology Why students are forced to buy this expensive and obsolete Texas Instruments calculator David Pescovitz

astronomy SunCalc: customizable data for the sun at any time and place Andrea James

adorable animals Eastern black rhino Zuri cools off with a hose — and it's adorable Jennifer Sandlin

retrocomputing ZX Spectrum basic interpreter remade from scratch on the web Rob Beschizza

gadgets Each of these urushi-lacquered Casio calculators took a month to make Rob Beschizza

politics Twelve "child safety" bills in Congress would end online anonymity Ellsworth Toohey

politics California's age verification law could regulate every Linux command Ellsworth Toohey

Cooking Keep a slide rule in your kitchen drawer for scaling recipes Ellsworth Toohey

security Raspberry Pi and Flipper Zero banned from Mamdani's inauguration Gail Sherman

liars Inflation is totally fixed, says government that lies for a living Jason Weisberger

gadgets The Casio Sadokei is a watch you can wear in the sauna Rob Beschizza

gadgets Study: no point upgrading to 8K unless you're right up close Rob Beschizza

toys Back to the Future Lego DeLorean not so pricey as that Death Star Rob Beschizza

water Free hydration calculator to plan how much water to bring on your hike Popkin

Science Study shows artificial intelligence use makes you stupid Séamus Bellamy

gadgets You can play Doom on an Anker power charger Rob Beschizza

empty vows Trump says he will get drug companies to pay Americans who take their medicine (video) Carla Sinclair

websites Calculator site that's usable on phones Rob Beschizza