3+ hour, 29+ min ago  (298+ words) Just because LEGO Technic is technically a toy doesn't mean that you cannot do solid engineering with it, like building air-powered engines. After first building a simple air-powered piston engine, "read more Just because LEGO Technic is technically a toy…...

17+ hour, 25+ min ago  (243+ words) If you've seen a big air-variable capacitor, you may have noticed that some of the plates may have slots cut into them. Why? [Mr Carlson] has the answer in the "read more If you've seen a big air-variable capacitor, you…...

5+ day, 1+ hour ago  (210+ words) Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The "correct" answer is thus to combine "read more Everyone generally knows about piston and rotary engines,…...

6+ day, 3+ hour ago  (372+ words) Not every impulsive purchase on eBay leads to possession of a wooden Dalek, but when a friend did exactly that, [Tony Goacher] did his part to turn "Dalek Bob" into "read more Not every impulsive purchase on eBay leads to…...

1+ week, 18+ hour ago  (368+ words) Would you feel confident in buying US-made LiFePO4 (LFP) batteries? While the answer here is generally expected to be "yes, especially compared to getting an unbranded LFP battery off eBay "read more Would you feel confident in buying US-made LiFePO4 (LFP) batteries?...

1+ week, 5+ day ago  (474+ words) There are few things more American than driving a car really fast in a straight line. Occasionally, the cars will make a few left turns, but otherwise, this is the "read more There are few things more American than driving…...

2+ week, 2+ day ago  (241+ words) You can buy a wide range of RC car tires off the shelf. Still, sometimes it can be hard to find exactly what you're looking for, particularly if you want "read more You can buy a wide range of RC…...

2+ week, 4+ day ago  (276+ words) The best part about BEV and hybrid cars is probably the bit where their electronics are taken out for a good teardown and comparison with previous generations and competing designs. "read more The best part about BEV and hybrid cars…...

2+ week, 5+ day ago  (416+ words) Not a huge percentage of our readers probably get their heat from diesel fuel, but it's not uncommon in remote areas where other fuels are hard to come-by. If you're "read more Not a huge percentage of our readers probably…...

3+ week, 2+ day ago  (466+ words) Compromise is key to keeping a team humming along. Say one person wants an inrunner electric motor, and the other prefers outrunner. What to do? Well, if you work at "read more Compromise is key to keeping a team humming…...