Author: Corbin Bowen
[ad_1] We’ve seen a lot of custom clocks here at Hackaday, many of which have pushed the traditional definition of the timepiece to its absolute limit. But for all their wild designs, most of them do have something in common: they assume you can actually read a clock and understand the concept of time. But what if you’re developing a clock for a toddler who’s only just coming to terms with such heady ideas? The answer, at least for [Riley Parish] is a set of 3D printed eyes that are illuminated with either yellow or green LEDs depending on whether…
[ad_1] The Barkhausen effect — named after German Physicist Heinrich Barkhausen — is the term given to the noise output produced by a ferromagnetic material due to the change in size and orientation of its discrete magnetic domains under the influence of an external magnetic field. The domains are small: smaller than the microcrystalline grains that form the magnetic material, but larger than the atomic scale. Barkausen discovered that as a magnetic field was brought close to a ferrous material, the local magnetic field would flip around randomly, as the magnetic domains rearranged themselves into a minimum energy configuration and…
[ad_1] One of the best things about hanging out with other hackers is the freewheeling brainstorming sessions that tend to occur. Case in point: I was at the Electronica trade fair and ended up hanging out with [Stephen Hawes] and [Lucian Chapar], two of the folks behind the LumenPnP open-source pick and place machine that we’ve covered a fair number of times in the past. Among many cool features, it has a camera mounted on the parts-moving head to find the fiducial markings on the PCB. But of course, this mean a camera mounted to an almost general purpose two-axis…
[ad_1] With everyone doing videos these days, you might want to up your narration game with a teleprompter. [Modern Hobbyist] can help. Since he does videos — like the one about the teleprompter below — we assume he built it out of his own need for the device. Actually, this is his second teleprompter. The first one was larger and not battery-powered, so this new version offers more portability. The camera shoots through the teleprompter screen so you can look right at the camera and still stay on script. The project reuses some of the original teleprompter code, showing a…
[ad_1] When it comes to locomotion, robots don’t typically do more than one thing at a time. Walkers stick to walking, and rollers stick to rolling. However, this simple method of enabling a cheetah-style quadruped to stand and even walk a little is pretty clever. With just a couple of rigid struts attached to the shins of the rear legs, it becomes possible for the robot to lever itself up into a stable standing position, and even shuffle around a bit. Not bad for a couple bolted-on bits with no moving parts! The robot style will look pretty familiar to…
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Vintage fashion refers to styles which have been recycled from previous eras, and there are vintage outfits to suit any interests, from the 20’s through to the 80’s. Vintage has seen a major revival over the last few years, and is a trend which will keep your style unique and timeless. Many of the recent catwalk shows have showcased vintage trends, with top designers creating wondrous replica designs. Some tips to remember before you go looking for any vintage items of clothing, is to consider what exactly you are looking for. Are you interested in a classic piece from the…
Brides these days are more focused on creating the ultimate “talked about” wedding that equates to the addition of more daring venues; themes and wedding dress colors! But there are those brides who don’t want to avoid white only to be different, but their decision could be based on the fact that white simply isn’t their best color. The traditional white wedding dress came into being after Queen Victoria’s 1840 ceremony; prior to that most women simply wore their best dress which varied in color and style. It has since been branded as a sign of purity to wear a…
Those of you who have spoken to fluent or native English speakers will have heard them tell of the benefits of learning English in an English speaking country. The advantages of this are obvious. Providing you live with, or have daily communicative contact with English speakers, there is no doubt that this will enhance and speed up becoming a good English speaker. You will find yourself in typical everyday situations, where you need to understand and communicate in English. You are likely to find yourself in embarrassing situations, where you make mistakes, frequently misunderstand, or fail to understand completely. This…