Andrew Lekashman offers a brief pictorial a history of mechanical keyboards, from adding machines to dumb terminals to Symbolics monstrosities to modern blank-key hacker totems. There was a lot of ingenious tech left by the wayside on the way to finding the perfect click.
Pictured above is one not included in the roundup, a particularly beautiful Raytheon(!) model that can be bought on eBay for $300, then sent to me.
Lekashman's tastes are grittier:

Ultrasonic I Plus
This keyboard is acoustic and operates entirely by vibration. This makes it more like a musical instrument than a workplace device. This is something that hasn’t been replicated in the keyboard market since 1982. The specific principle that allows it to work is called Time Difference Of Arrival (TDOA). This is like a form of echo-location to measure which key hits the acoustic transfer bar. Whenever a switch is pressed, a metal “slapper” strikes the bar, and transducers measure the sound wave produced, which differs based on the distance of the slapper from the transducer. Typing on the keyboard is delightfully clicky and pleasantly tactile.
The Lixada LED Handheld Flashlight is a $9 stocking-stuffer ($29 for 4): a six-LED/36 lumen flashlight that clips directly over the terminals of a 9V battery, forming an easy flashlight rated for up to 10,000 hours (battery life depends on whether you're switched to 6, 4 or 2 LEDs). One reviewer uses 9V batteries swapped […]
Wired takes a long look at the rapid progress in oral health in the 20th century from this: In 1899, the British Army was recruiting troops to fight in the Boer War and recruiters were appalled at the health of the men who were turning up. They were stunted, malnourished and had appalling teeth. “It […]
The business end of KOKUYO Beetle Tips highlighter looks a bit like a rhinoceros beetle’s horns, hence the name. Three-way refers to the fun you’ll have with the highlighter when you make three different kinds of marks with it. Amazon sells a colorful 5-pack for . [via]
Do you have any Star Wars fans on your list? Given the reach and output of its new corporate masters these days, it might be easier to ask if there’s anyone out there who isn’t a Star Wars fan. So let’s narrow it down further: Do you know a Star Wars fan who likes to […]
There’s much ado about coffee brewing methods these days, but most of us – at least on the busy weekdays – just want our morning joe to be consistent, easy, and most of all, fast. If that sounds like anyone on your Christmas list, they’re going to get a lot of mileage out of the […]
Online shopping is going to be through the roof this month, and you’d better believe that hackers know it. If you’re going to invest in a virtual private network, now is the time. Especially when Windscribe VPN is offering its own holiday discount. At their current price point, it’s well worth jumping on the paid […]