Collaborate Disseminate
![[Ben] at workbench with 3D-printed sea scooter](https://hackaday.com/wp-content/uploads/2025/08/sea-scooter-1200.jpg?w=800)
To every gadget, tool, or toy, you can reasonably think: ‘Sure I could buy this… but can I make it myself?’ And that’s where [Ben] decided he could, and got …read more Continue reading Watertight and Wireless in One Go: The DIY Sea Scooter
Admit it. You’d get through boring classes in school by daydreaming of cool things you’d like to build. If you were like us, some of them were practical, but some …read more Continue reading Student Drone Flies, Submerges
Underwater robots face many challenges, not least of which is how to move around. ZodiAq is a prototype underwater soft robot (link is to research paper) that takes an unusual approach …read more Continue reading Forget Propellers, Embrace Tentacle-based Locomotion
From fire-breathers to sprinters, climbers and gymnasts, we’ve seen more than our fair share of impressive quadruped robots. Now the fourth-generation Honey Badger has added underwater walkies to the list of robodog capabilities.Continue ReadingCategor… Continue reading Watch: Intrepid robodog goes for underwater stroll
A remarkable semi-submersible ecotourism concept that takes passengers above and below the water has just received a zero-emission boost thanks to a new partnership between Platypus Craft and electric outboard manufacturer Evoy.Continue ReadingCategory… Continue reading Semi-submersible e-boat makes zero-emission marine ecotourism splash
People go missing without a trace far more commonly than any of us would like to think about. Of course the authorities will conduct a search, but even assuming they …read more Continue reading Solving Cold Cases With Hacked Together Gear
A strange sea creature known as the salp reproduces asexually, building long chains of clones. Researchers have now decoded the way these long salp chains propel themselves, a finding that could lead to better propulsion systems for underwater vehicles… Continue reading Coordinated jet propulsion corkscrews these odd creatures through the water
If scuba divers use inflatable BCDs (buoyancy control devices), why don’t underwater robots? Well, an experimental new one does, and the technology is claimed to be much more energy-efficient than traditional methods of moving up and down in the water…. Continue reading Energy-efficient underwater robot rises and falls via fuel-cell balloons
Israeli company BaroMar is preparing to test a clever new angle on grid-level energy storage, which it says will be the cheapest way to stabilize renewable grids over longer time scales. This innovative system lets water do the work.Continue ReadingCat… Continue reading Sea-bed ‘air batteries’ offer cheaper long-term energy storage
Penguins are fast, fantastic swimmers, so why not make an underwater robot inspired by them? That’s just what German underwater tech company EvoLogics has done, with its new-and-improved Quadroin AUV (autonomous underwater vehicle).Continue ReadingCate… Continue reading Video: Bio-inspired aquatic robot shoots through the water like a penguin