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

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

Twighlight Zone Great deal on 25-DVD set for The Twilight Zone: The Complete Series Mark Frauenfelder

music Japanese railway melodies played on pocket calculators David Pescovitz

calculators Do you have enough toilet paper? Mark Frauenfelder

Gadgets Learn full stack web development with this $13 Javascript course Boing Boing's Shop

authoritarianism Cops and spooks all over the world rely on a junk-science "walking polygraph" method to steer their investigation Cory Doctorow

Gadgets The era of schoolchildren being forced to buy crappy $100 calculators is nearing its end Rob Beschizza

social media How many books could you read if you quit social media? Rob Beschizza

Business Business schools are shuttering full-time MBA programs, citing low enrollment, millennials Cory Doctorow

late stage capitalism Older Americans are working beyond retirement age at levels not seen since 1962 Cory Doctorow

happy mutants Mechanical calculators have the BEST divide-by-zero errors Cory Doctorow

Disney 'Pirates of Caribbean' theme song on a calculator Xeni Jardin

makers Stylophone business card David Pescovitz

Gadgets Co-inventor of handheld electronic calculator dies Rob Beschizza

happy mutants Photographing computers to show the art inside the black box Cory Doctorow

happy mutants Pro Office Calculator: a mysterious and addictive game disguised as a desktop calculator app Cory Doctorow

scams Dramatic reading of wank shame scam spam sent to Boing Boing's corporate inquiries email helpline Rob Beschizza