Viewing profile — HNaTTY

One thing that always bothered me about airplanes is the energy used to take off. On aircraft carriers, they use a launch device, allowing the airplane to "push off" against the ca…

My 1700x build for video processing has suffered major instabilities -- app crashes and BSODs -- memory corruption type errors. I went through 4 different types of DDR4 memory unti…

The filter checkboxes are a bit weird, for example elements (such as br and img) which are both self-closing and inline only show up if both self-closing and inline are selected, i…

Publicly shaming Gigster like we're doing here should help.

To a large extent, my daily driving consists of going to the same 5-10 places. I'd like my car to watch me drive somewhere and then just do that, with minimal improvization. For ex…

Fair point. You don't measure fuel economy on cars by running them on an oval track with the accelerator pinned.

Oh yes, and nobody cared about the performance aftermarket (basically anything you do is going to violate emissions standards) until Harley started selling bikes already modified f…

One megahertz is more than enough. That's enough power to compare like three-thousand integer values per second, which is way more than a human can do. We've got these guys out the…

You rebel!

You me and the author are on the same page. Top speed isn't the issue that the author is complaining about, and it's not the reason to get more power. It's about acceleration and h…

Unless you're assuming an awesome future with net guns fired from pirate drones, downing the Amazon drones and stealing their wares, this is just the same package theft issue that …

Probably about 300-500 watt-hours of power and approximately 20 watt-hours per mile, so 15-25 miles.

My favorite sources of information about e-bikes come from endless-sphere.com, electricbike.com, electricbike-blog.com, and the /r/ebikes subreddit. Also I've obsessively watched a…

In my opinion the current generation of mid drives are better than the vast majority of hub-drive motors, whether we're talking about the Bosch or Yamaha or Bafang etc... "Better" …

A bit more info on the 20wh/mile number that I totally made up. The bike you linked has a 250w motor. Running it at 100% for an hour, if you were able to average 12.5mph for that t…

$500 worth of batteries, $500 worth of motor, $500 worth of bike, and $2500 worth of R&D/marketing/CEO salary expenses. Batteries have come down in price significantly, just in 201…

That bike has a 36v, 8.7ah battery. I have a 52v, 13.5ah battery. Watt-hours is volts times amp-hours, so you're looking at 313wh and I've got 702wh, so more than twice. That bike …

The law in my state defines a bicycle as a "device having two or three wheels with fully operable pedals and an electric motor of less than 750 watts (one horsepower), whose maximu…

The power output (watts) is a function of (volts * amps) so if you have a 48v battery, you can output ~15 amps and get 750 watts. The amperage output is controlled by software, and…

250 watts is the legal limit in the EU, whereas most states in the US consider e-bikes providing up to 750 watts of power (about 1hp) as still "bicycles" (meaning no registration, …

Here's a video of the installation: https://www.youtube.com/watch?v=SmMtUVO5XZA The folks that made that video are probably the biggest DIY kit sellers and a big (and controversial…

I agree about the top speed, 25mph on a trail is dangerous for everybody involved. I want more than 750w of power, not to go faster, but to get up to speed faster after a stop sign…

You can get a "race face" front sprocket that has alternating thick-thin teeth. This holds the chain more tightly and makes it much more difficult to fall off.

I built an e-bike last weekend, I have just 35 miles on it so far and I've convinced 1-2 friends to get one already. I love riding but my enthusiasm in winter is severely diminishe…

Popehat wrote a post about that. TLDR, Cuomo is wrong. https://popehat.com/2016/10/17/no-it-is-not-illegal-to-read-...