Home improvement calculators can help you figure out how much of an item you'll need before you head to the store.

Nothing slows down a DIY faster than some complex math, and nothing can speed it along like these tools, tech, and tips that ...

If you like Nixie tubes and/or DIY calculators, checkout this interesting talk from the HP Handheld Conference in Orlando last month by [Eric Smith] from Brouhaha and [John Doran] from Time Fracture.

If you like Nixie tubes and/or DIY calculators, checkout this interesting talk from the HP Handheld Conference in Orlando last month by [Eric Smith] from Brouhaha and [John Doran] from Time Fracture.

Good grief – where does the time go? For months and months (and months) I've been meaning to write an incredibly interesting paper on Binary Coded Decimal (BCD). The strange thing is that a lot of ...

What do you do when your trusty, 45 year old calculator finally needs to be retired? If you’re a programmer with a knack for making things — like Simon Boak — you custom build a replacement. This is ...

What if your calculator could do more than crunch numbers? Imagine a pocket-sized device that not only solves equations but also doubles as a retro gaming console, a basic computer, and a platform for ...

Remember those Casio scientific calculator watches? Yeah, yeah . . . we got roughed up for wearing one too. Anyway, engineer David Jones is launching a DIY site for building one using ...

If you thought the original calculator watch was nerdy, get a load of this DIY gem from designer David Jones. According to his website, the “uWatch” is the “world’s most powerful programmable ...