11+ hour, 36+ min ago  (33+ words) There always seem to be a handful of revolutionary technologies perpetually out of reach: fusion energy, quantum computers, and full self-driving cars are always in this list, and it seems like there'. .....

11+ hour, 42+ min ago  (38+ words) [Brandon Lai] is hoping to build a humanoid robot. To that end, he's going to need some actuators, and decided to design his own. His second pass at this turned out pretty well, with a few snags found. .....

22+ hour ago  (31+ words) The Carrington Event was the most intense geomagnetic storm ever recorded. In September 1859, auroras were visible as close to the equator as Columbia and some telegraph stations were severely damaged. .....

1+ week, 10+ hour ago  (35+ words) As straightforward as the concept of taking battery packs out of an old electric or hybrid car and reusing them for home power storage sounds, this thought process skips a few essential steps. As argu. .....

1+ week, 1+ day ago  (172+ words) With these LFP batteries generally coming in fully opaque plastic cases, it's really hard to tell what the internals look like without either going medieval on them or using less intrusive methods such as an X-ray machine. In this case…...

1+ week, 3+ day ago  (216+ words) Hackaday There are a lot of traditional features of a bike that rarely change The spokes, the chain, and the inability for it to take off like a rocket, to mention a few None of these are features of the…...

7+ mon, 1+ week ago  (1272+ words) The Powerwall-like arrangement uses 500 batteries salvaged from disposable vapes. His personal quality control measure" while pulling the cells from the vapes was to skip any that had been discharged past 3 V. On the other hand, we'd be conservative too if we…...

1+ week, 6+ day ago  (41+ words) With how much time many of us spend in our cars, it makes perfect sense to consider them a second home. Yet even if that's not the case, there are still good reasons to connect a car to one's smart…...

2+ week, 12+ hour ago  (223+ words) Hackaday Solarpunk is all about combining that DIY hacker ethos with sustainability and renewable resources Our usual PCB manufacturing methods, with their bevy of chemical baths and petrochemical resins aren't exactly the most sustainable Digging up some clay and firing…...

2+ week, 2+ day ago  (32+ words) [caption id="attachment_1115645" align="alignright" width="400"] Old versus new Prius Ni MH module. (Credit: Hub Nut, You Tube)[/caption] It's possible to get a pretty good deal on used Toyota Prius car. .....