nerobro

joined 2 years ago
[–] nerobro@fedia.io 4 points 1 month ago

needs more upvotes

[–] nerobro@fedia.io 12 points 2 months ago (6 children)

So you're on your ebike, going 15mph. Using 140w or so. You're spending 15-20w on the drivetrain, and the remainder is entirely aerodynamic drag. You're putting 120-125w into making wind move. You're also losing 5-10 watts to the drive electronics and dashboard. So your total power use is 150w.

If you're going to recharge a battery. In the same time it takes to ride, you need to get at least 150w of power into another battery. Sadly, batteries don't actually "just cleanly charge" there are some losses, but since we're going to take an hour to charge it, lets call it 5%. So to fill up that battery we need 157watts of input power.

Your bike, moving at a steady speed, is absorbing 150w of power. If we want another 155w of power, where is that going to come from? If we take it from.. say.. the front wheel, we are now absorbing another 155w of power. So to maintain the same speed, we now need to push the bike along with 305w of power. And.. now we need a bike that makes 305w of power, to go the same speed we were going with 150w. .... And we're only generating 155w.

There is no free lunch. If you're doing work, you need to get that power from somewhere.

[–] nerobro@fedia.io 6 points 9 months ago (2 children)

I hope you have some sort of therapist to talk to, because this is.. gonna take some work.

Forget the "why". Being there and saving the life of people directly connected to you is traumatic. Full stop. PTSD? I mean, maybe not, but trauma? yes.

There's a lot going on here, and the only reasonable response is advice. You need advisement. You also need to settle the "why". Why the rest of the family isn't concerned? If it's "normal" there's a normalization aspect that needs investigation. Why you have had to do the Heimlich on multiple family members? That speaks to it being something specific about ~your~ family. Why is it YOU who's doing it?

Exactly none of this is normal. Yes, you are having the natural reaction to having family almost dying in front of you. You need to figure out the rest. The other symptoms will either make sense, or go away, if you settle the rest.

[–] nerobro@fedia.io 12 points 1 year ago (1 children)

Little Nazis is a name reserved for those who turn a blind eye. "It's ok for me.. now." "I felt safer." "They don't care about me or my family." "They buy my goods."

[–] nerobro@fedia.io 2 points 1 year ago

This is a very bad take. LLM's, appear to be at their limit. They're autocomplete and are only as good as their inputs. They can't be depended on for truth. They can't be trusted to even do ~math~.

LLM's work as a place to bounce things off of, but still require editorial work afterword, even when they are working their best.

LLM's take huge amounts of power, both to make run, keep running, and to correct their output.

In general LLM's don't significantly reduce labor, and they are still ~very costly~.

Even the most basic assembly line multiplies someones output. The best assembly lines remove almost all human labor. Even bad assembly lines are wholesale better than individual assembly.

As long as it's LLM, I don't believe it will ever be "useful". We need a different technology to make this sort of assistance useful.

[–] nerobro@fedia.io 2 points 1 year ago

Depends on the engine. Small 2 strokes usually use premix. Big ones, like on scooters or motorcycles, usually have an oil pump and an oil tank. You add oil every few thousand miles.

[–] nerobro@fedia.io 0 points 1 year ago (1 children)

You're showing signs of profound hearing loss in the mid and high ranges. You really should get your ears checked. For real. This is ~outside~ the complaint you're making.

What you're not hearing, are the thousands of 250 -500cc learner bikes. Those yamaha FZ6's, Honda Transalps, ST1300s, BMW GS's, K and R series, even the wild high end sportbikes are quite quiet at mild power levels.

My personal bikes? all have stock exhausts. They're less noisy than my idling Jeep Cherokee, and it too, is dead stock. (though it is a very loud machine at idle) "I" am not the problem.

[–] nerobro@fedia.io 1 points 1 year ago

I am in this situation with a family member. I asked for an apology for their behavior, and I got the flippant "I'm sorry" and "can we move on." The reality is I'm.. unable to move on until the situation is settled. "I require an apology for your behavior, both in words showing you understand why this is a problem, and the appropriate change of action."

We are still trying to sort this out. It may not go well. WHEEEEEEEE

[–] nerobro@fedia.io 1 points 1 year ago (1 children)

They are not very rare, loud cars, that is. Harleys.. maybe.. but that's a story on it's own.

Actually, I'm now quite convinced you have profound hearing loss. If the ONLY big noise you hear day to day, is motorcycle engines, I think you're missing a lot of the soundscape. I'd be willing to bet you have some real loss in the high and midranges. Get it checked out, if that's the case, you're going to need to protect what you have left.

[–] nerobro@fedia.io 2 points 1 year ago (3 children)

That doesn't jive with anything described in this thread. We wear earplugs, because they are noisy "to us". Bikes all meet certain volume limits from the factory. So do cars. (they are in fact often the same levels..) You have bikes on the brain, think any high reving, 4 cylinder is a bike, and are happy to point your finger at it. But you also... aren't hearing the dozens, hundreds, of other bikes that are going by.

A honda S2000, any Civic type r from before 2020, are going to make some very similar noises if some jerk decides noise is better than enjoying your drive. I strongly suspect you're blaming bikes for wankers with $50 tesco cherry bombs on their panda.

Just a kilometer? Look, I'm 3km from a major highway. And 2km from two different rail yards. I can hear anything with a missing muffler, and I hear trains at high idle every day. The fact you think it's "just" 1km for the jerks? that also shows you just don't know the subject.

I have several decades on my ears. "I" am the one who hears the things. Case in point, some dropped pixel 3 earbuds were on the ground, and the only one who could hear the music playing was me. And "I" am the one with the noisy hobbys. I protect my ears. Honestly, it sounds a bit like YOU may have some hearing damage? Do you keep a fan on in your bedroom at night? is it one of the 10" or smaller ones?

I get wanting quiet. But I also think your calibration is off.

[–] nerobro@fedia.io 3 points 1 year ago (9 children)

Loudest vehicles in my neighborhood are all the cars with the catalysts cut out of them. And because they're so slow, they're around SO MUCH LONGER.

Bikes aren't loud. People who want loud bikes are loud.

Did you know that most road noise is tire noise? Those sound abatement walls along highways are to deal with YOUR car's tire noise, not engine noise.

[–] nerobro@fedia.io 2 points 1 year ago (1 children)

This gets into some funny spaces. Your ears can only handle "so loud" before things start going weird. Muscles start tensing up to attenuate the noise. The shape of your ear canals will funnel sound so your hairs in your inner ear stop ~hearing~ and just report noise.

Turning down the overall volume, lets you hear more, because more of the sound is in your range of acceptable volumes. I'm more aware of what's going on with earplugs in, because I'm able to hear things like the tire noise of a nearby car, or the cooling fans of a semi.

This is the same reason wearing earplugs at concerts makes the music sound better. :-)

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