Here are a few neat optical illusions built by magician Jerry Andrus.
Jerry Andrus' optical illusion video
A clever trick to keep loose zip ties from turning into a tangle
A bag of loose zip ties always seems to collapse into the same knotted ball at the bottom of a drawer. Writing in his latest Gar's Tips & Tools newsletter,… READ THE REST
A hobbyist projects SFO's overhead planes onto his ceiling in real time
Living under an airport's takeoff path usually means complaining about the noise. A Redditor who goes by I_am_Root01 went the other way and built a ceiling projection that shows every… READ THE REST
A $3 dot sticker system reveals which parts you actually use
Electronics hobbyist Scott Lawson wanted to know which parts in his storage collection he actually reaches for, so he invented a tracking system that costs about $3: colored dot stickers… READ THE REST
This $20 PDF editor keeps your files off the cloud and on your device (MSRP $50)
Disclosure: Boing Boing earns a commission on purchases made through links in this post. TL;DR: Tackle PDFs with ease forever with an IndyPDF Editor and Converter lifetime subscription, on sale now… READ THE REST
Learning a new language is less intimidating with Promova for only $80
Disclosure: Boing Boing earns a commission on purchases made through links in this post. TL;DR: Build confidence in a new language with Promova's lifetime subscription for $79.99 (reg. $299.99). Learning a new language… READ THE REST
A popular platform is making it easier to read in your spare time, and it's only $70 for life
Disclosure: Boing Boing earns a commission on purchases made through links in this post. TL;DR: Headway is a mobile app that condenses fiction and non-fiction books into quick summaries, and it's only… READ THE REST
