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.

Some of the greatest electronic calculators of all time, including the venerable HP-16C, included functionality to convert numbers between different bases. 3735928559 might not mean much in base 10, ...

There are lots of factors to keep in mind when you’re making any upgrade to your living space. Most importantly: How much material do you need for your project? Thankfully, you don’t have to be a ...

A home-brewed graphing calculator called Open SciCal promises to put a powerful machine built entirely from open-source hardware into the pockets of quant jocks and statisticians. "This is for the ...

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 ...

Do you, like me, recall playing with some of the first personal computers? Of course we had machine code and assembly language to work with, but the first “high-level” language of any note was some ...

Who needs Texas Instruments? Not Matt Stack, creator of the Open SciCal. His homemade, 100% open source graphing calculator not only blows away the functionality of store-bought devices, but is the ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. There are lots of factors to keep in mind when you’re making any upgrade to your living space. Most importantly: How much material ...