Keeping a bird bath or a pond in your yard is a great way to add ambiance and style, but both of these things can be a haven for mosquitoes. Popular methods of getting rid of them are often with harsh pesticides, but [Shane] has brought us a more environmentally-friendly way of taking care of these disease-carrying insects by looping a Cardi B playlist underwater, killing the mosquito larvae.
While the build does include some other favorites such as “Baby Shark” and would probably work with any song (or audio of sufficient volume) the build is still pretty interesting. It’s based on a 555 timer circuit which powered an ultrasonic sound gun, but was repurposed for this build. The ultrasonic modules were replaced with piezo modules which were waterproofed with silicone. The sound produced vibrates at a frequency which resonates with the mosquito larvae and is fatal to them. [Shane] put the build into a small boat which can be floated in any pond, bird bath, horse trough, or water feature.
The major caveat to this build is that it may be damaging to other beneficial animals such as fish or frogs, so he suggests limiting its use to uninhabited stagnant water. Either way, though, it’s a pretty unique way of taking care of a mosquito problem not unlike another build which takes care of these insects in water a slightly different way.
Continue reading “Killing Mosquitoes With Cardi B”
It’s no secret that we love bizarre robot locomotion, so we are naturally suckers for BALLU (YouTube link, also embedded below) the Bouyancy-Assisted Lightweight Legged Unit. The project started with a simple observation — walking robots are constrained by having to hold themselves up — and removing that constraint make success much easier. Instead of walking, BALLU almost floats and uses what little net weight it does have to push against the ground.
Continue reading “Floating Walking Robot”
Nixie tubes, electromagnets, levitation, and microcontrollers — this project has “Hackaday” written all over it!
Time Flies: Levitating Nixie Clock comes from [Tony Adams], and uses a lot of technology we’ve seen before, but in a new and interesting way. A nixie tube clock is nothing new, but using electromagnets to levitate it above a base certainly paired with inductive coupling to transmit power using no wires make this floating nixie build a real treat.
Continue reading “You May Have A Nixie Tube Clock, But Can Yours Levitate?”
The gist of the idea is to suspend an underwater tunnel from floating pontoons. By the time you finished reading that sentence, you probably already had a list of things in your head that seem to make this a terrible idea. After all, it does seem to combine the worst aspects of both underwater tunnels and bridges. But, the idea may actually be a good one, and it’s already being seriously considered in Norway.
Continue reading “It’s Not A Bridge, And Not A Tunnel. Or, Maybe It’s Both?”
It’s a boat! It’s a hackerspace! It’s a DIY research platform and an art gallery! It’s Boat Lab!
[Andrew Quitmeyer] lead a project in the Philippines that was nominally charged with making an art and technology space. After a few days brainstorming, four groups formed and came up with projects as wide-ranging as a water-jet video screen and a marine biology lab. What did they have in common? They were all going to take place on a floating raft hackerspace in a beautiful body of water in Manila.
This is a really crazy meta-project, and any of the sub-projects would be worth their own blog post. Even more so is the idea itself — building a floating hackerspace is just cool. The write-up on Hackaday.io linked above is pretty comprehensive, and the “Waterspace” book talks a bit more about the overarching process. Boat Lab is a great entry into the Citizen Science phase of the Hackaday Prize 2016.
But we also love the idea of hackerspaces in non-traditional places. The Cairo Hackerspace is working on a van-based space. And now we’ve seen a boat. What other mobile hackerspace solutions are out there? We’d love to hear!
Continue reading “Hackaday Prize Entry: Waterspace, A Floating Hackerspace Lab”
Golf is an expensive obsession for some, with course fees on the most memorable and challenging courses running into the hundreds of dollars a game and beyond. If playing one of the most unusual holes in golf is simply beyond your means, there’s no need to fret – just do what [TVMiller] did and build a miniature mobile replica of the famous Coeur d’Alene Resort Floating 14th hole.
The Floating 14th is pretty spectacular as far as golf holes go. With a green located on an island about a hundred yards offshore of beautiful Lake Coeur d’Alene in northern Idaho, there’s little room for error – after all, it’s surrounded by a 49 square mile water trap. [TVMiller]’s replica green recreates the target quite accurately, although we doubt the Jolly Wrencher flag is regulation for championship play. But the best part is the motorized platform and smartphone app that can be used to send the mini green out as far as you feel like practicing. Sure, it could be a tad more realistic if the replica green actually floated, but asphalt fairways are a little easier to come by than Olympic-sized swimming pools.
A fun, tongue-in-cheek project, and we really enjoyed the faux TV coverage of the 2015 Hackaday Golf Championship in the video below. If real golf isn’t your thing, you might want to build a table-top golf course, or play a round of mini golf with a ball-incinerating Portal themed hole.
Continue reading “Mobile Mini Green Recreates Coeur D’Alene’s Floating 14th Hole”