401–410 of 415 posts
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What’s this time you speak of?
I guess the person you replied to is saying that they are interested in teaching you JS, in exchange for you teaching them mechanical engineering fundamentals, assuming your schedule can allow that.
My response was meant to be humorous.
Earlier quoted context omitted.
What’s this time you speak of?
I guess the person you replied to is saying that they are interested in teaching you JS, in exchange for you teaching them mechanical engineering fundamentals, assuming your schedule can allow that.
Earlier quoted context omitted.
I guess the person you replied to is saying that they are interested in teaching you JS, in exchange for you teaching them mechanical engineering fundamentals, assuming your schedule can allow that.
I got that, I have very little free time and I’m in Ireland so I’ve no idea how time zones would permit this. My response was meant to be humorous.
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When I took "Software Engineering" in University, the prof was very careful to explain in great detail, and frequently, that the field was not mature enough to really be called engineering. Then he would talk at length about things like software for airplanes and spacecraft. It is impossible to call yourself an engineer while looking someone in the eye after taking his class. I am a software developer. Maybe an analy…
The word engineer is used by anyone who 1) has an engineering degree or 2) works a field where most new practitioners have such a degree. Most of these people don't know shit, and design terrible systems that barely work (or don't work at all). Trying to elevate the word to a non-existent Plutonic ideal where it means "great engineering" is just ... pointless and faux-humble.
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Excuse me, but modern CPUs are way more complicated than this, even if you only look at "arranging events in time". Like several orders of magnitude more complicated. Anyone who has touched VHDL/Verilog knows how delicate signal propagation is, and how crafty you have to be with the clock. And even if you never tinkered with transistors surely you've at least looked at assembly code, and the amount of painstakingly d…
It's easy to dismiss the difficulty of something when all you see is a webpage explaining things very well and simply with some cool graphics. That webpage looks really cool, but this is just a front page of the result. The backend of all the math, equations and thoughts involved wouldn't be so visually appealing. This is just the pretty part result. If you would delve into the actual math and physics that was requir…
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> by making it light If there's one thing that EVs are not, is "light". Model S ranges from 4,561 to 4,941 lbs. A model 3, 3,648 to 4,250 lbs. A Nissan Leaf - 3,538 to 3,946 lbs. In comparison, a Honda Civic weights 2,771 to 3,012 lbs. Regenerative breaking is nice but it's very dependent on the particular drive and terrain. Heaters are power hungry as there is very little waste heat that can be used (again, due to t…
> If there's one thing that EVs are not, is "light". sigh Obviously we are not comparing about the weight of an EV compared to an apple or vehicle that doesn't require a battery. We are talking about extreme measures taken to make the car lighter so it can improve range. Replacing cheaper steel with more expensive aluminum, reducing even surface area of plastics, reducing wires. Truly amazing steps were taken to redu…
Well, yeah that was my original intention. Teslas get comparable range to ICE vehicles while using less than 3 gallons of gas. That comparison to ICE vehicles demonstrates the efficiency of electric vehicles.
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I'm assuming he used something like SolidWorks to CAD up the parts, but then it looks like he custom made all the animation stepping widgets and camera rotation logic and various shaders for the different effects in pure JS[0]? Surely he didn't write this JS by hand (i.e. it was generated from blender3d or solidworks files or something?). I would like an article on how he made the interactive animations in the articl…
> Surely he didn't write this JS by hand It seems parts of it are auto-generated like all those co-ordinates. But then some parts appear as if they are hand-coded. I also noticed that other program texts are getting assigned to variables (example "line_vert_src"). Could someone please describe what's going on? That explosion animation is absolutely mind-blowing. Goes to show what can be achieved if someone focuses th…
He doesn't even use any libraries for the 3d math, input, rendering, etc. Pretty inspiring.
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Much more common with pushrod engines, where the camshaft is situated close to the crankshaft; less so with overhead camshafts. Though I think some very high-revving sports and competition engines have gears driving overhead cams; IIRC the McLaren TAG F1 turbo V6 (by Porsche) back in the 1980s was one example.
The engine used in the Ferrari Enzo and Maserati MC12 is a notable example: https://36.media.tumblr.com/8a928fcccf1b41e82be0273ccbe2005a...
And, given your nick, the OHC Volvo B18/B20 can't go unmentioned: Dunno if this was standard back in the day or if it was unique to this engine, but it had an interesting combination of materials. The smaller gear on the crankshaft was steel, but the larger one on the camshaft was made out of some weird bakelite-like stuff; as I recall, with some sort of fibrous reinforcement in it.
(OK, if you're not a Swedish motor enthusiast, you may be wondering "WTF does my nick have to do with that?" A: The B18 was used in the Volvo Amazon.)