EPTAsk and answer stupid questions here! - Page 722
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Zambrah
United States7393 Posts
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DarkPlasmaBall
United States46062 Posts
On April 07 2019 22:03 Zambrah wrote: Thank you beautiful people, I’ve tried to reason with her, but she becomes very insulting at a certain point and it takes all of my mental fortitude not to pop her in the face, so I just wanted to make sure I wasn’t wrong for arguing when I did, because she can teach as much weird English as she wants, it’s not worth the frustration to correct and be told American English is wrong English by an Eastern European. Yeah, it sounds like she's interested in trying to force semantic technicalities onto conversational English, without adapting to nuance or actual meaning. Similarly, I've always heard and used "have" a dialogue over "make" a dialogue, although technically the act of speaking with someone is creating (i.e., "making") the dialogue. As she's apparently being obstinate, it doesn't sound like it's worth the frustration to try to find common ground. | ||
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Zambrah
United States7393 Posts
Imagine Peggy Hill from King of the Hill. Precisely like that but an even more obnoxious tone of voice. | ||
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JimmiC
Canada22817 Posts
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pheer
5398 Posts
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Starlightsun
United States1405 Posts
On April 07 2019 18:58 Zambrah wrote: So "what is this" isn't wrong? My coworker keeps telling me about the "only correct way" and to be honest Im starting to be unable to tell what is and isn't proper English anymore. Also, for context, were teaching children English, so one of the things we do is show a flash card ask what it is and wait for them to answer, so I don't want to get into a fight with the other teacher, but she has an "I'm always right and zis is ze only way to speak english," mentality, so I'm curious if in a scenario where you have a flash cards depicting an elephant, is it appropriate to go, "what it is this?" "This is an elephant." And, I mean, one doesn't assume familaiarity with flash cards right? Also whether one has a dialogue or makes a dialogue. Well if you showed a flashcard of a random person and asked "who is this?" The answer would be "I don't know". But if you ask "what is this?" then they can answer "a person". Sounds like she's trying to make a philosophical point that animals should be treated as people or something? "Who" is asking for a name, or sometimes a profession, but not an animal type. | ||
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FiWiFaKi
Canada9859 Posts
From a manufacturing stand point, if you want to create a gigantic battery (electric car, home back up electricity, etc), is this the optimal size? For example, if you made the battery twice the size, maybe you could save a lot of money on the manufacturing process, casing, etc... Or maybe there's other complications like the anode and cathode being bad geometries, idk. So if the objective is to make the cheapest lithium ion battery, with similar performance characteristics (or better) of today's big brand batteries (LG, Sanyo, Sony, LG), what form factor should they use? | ||
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FiWiFaKi
Canada9859 Posts
Is anyone familiar with storage solutions that will allow the gasoline to last around a year. In my city we have 40 cent fluctuations in gas prices per year, so being able to save on 4 cars at roughly 10l/100km, 50,000km/year, so that's 5000L of fuel, or $1000 dollars. Payback period of 5 years would be a system budget of $5000. Could even sell to friends and coworkers at a 10 cent premium when prices are high to get back some of the capital expense. I'm thinking digging a hole in the ground, installing some big 10m^3 container, some pumping mechanism, and that's it? Plenty of unused space on my property, pretty much just validation testing at this point, but seems like it could be economically feasible, especially if not including my wage which it would be a project of love and learning, so I think that's fair. | ||
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GreenHorizons
United States24033 Posts
On April 08 2019 08:17 FiWiFaKi wrote: Sorry, another question already. I know storing gasoline is complex with all the oxidation, moisture, UV breakdown, and whatnot. Is anyone familiar with storage solutions that will allow the gasoline to last around a year. In my city we have 40 cent flactuations in gas prices per year, so being able to save on 4 cars at roughly 10l/100km, 50,000km/year, so that's 5000L of fuel, or $1000 dollars. Payback period of 5 years would be a system budget of $5000. Could even sell to friends and coworkers at a 10 cent premium when prices are high to get back some of the Capital expense. I'm thinking digging a hole in the ground, installing some big 10m^3 container, some pumping mechanism, and that's it? It's probably illegal to just do it, but I wouldn't let that stop you. Think it needs some agitation to prevent settling but other than that and a solid container/pump that's pretty much it. Of course my experience is from a makeshift ethanol production gig so I could be missing important factors. | ||
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KwarK
United States44074 Posts
On April 08 2019 08:17 FiWiFaKi wrote: Sorry, another question already. I know storing gasoline is complex with all the oxidation, moisture, UV breakdown, and whatnot. Is anyone familiar with storage solutions that will allow the gasoline to last around a year. In my city we have 40 cent fluctuations in gas prices per year, so being able to save on 4 cars at roughly 10l/100km, 50,000km/year, so that's 5000L of fuel, or $1000 dollars. Payback period of 5 years would be a system budget of $5000. Could even sell to friends and coworkers at a 10 cent premium when prices are high to get back some of the capital expense. I'm thinking digging a hole in the ground, installing some big 10m^3 container, some pumping mechanism, and that's it? Plenty of unused space on my property, pretty much just validation testing at this point, but seems like it could be economically feasible, especially if not including my wage which it would be a project of love and learning, so I think that's fair. I can’t imagine it’s economically feasible on any scale. Hell, it’s not even worth it to cross the street for cheaper gas. Time value of money etc. If I was your friend I wouldn’t be driving to your house for you to pump me gas, even at a 10c discount. Also your container would be 1,000 cubic metres of gas. 264,000 gallons approximately. I’m not sure you’ve really thought this through. | ||
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FiWiFaKi
Canada9859 Posts
@Kwark 10m^3 = 10,000L, in this case your math is off. I am in Alberta, so especially the people I'm surrounded by, half of them are driving pick up trucks, plus we have several cargo vans, which consume between 20-28L. But even a pick up truck, we have guys filling up 100L once a week. Over the past 12 months, in CAD, we've had gas at 80 cents, right now I'm looking at a gas station and its 1.24, I think it's going to go a bit higher too. So maybe if the gas was $1 and I was selling it for 90 cents it wouldn't be worth it for some to save $10 on a 100L fill up (for say 10 minute driving both ways, and a somewhat more complex filling/paying procedure), but at $1.20, that's $30 in savings for a week. $120 a month, that's 2-3% of someone's income in savings after taxes. Spending 20 minutes 4-5x per month, and $15/month on gas for 2-3% income savings in this fairly ideal situation doesn't seem half bad. A basic $100 flow meter and etransfer would be fairly seamless. The company cars I often drive around, so could fill those up, we have guys come over to a garage for beers after work, would save a trip to the gas station for when I'm leaving for work, etc. But yes, I don't have any detailed plan, the idea popped into my head, did some reading for an hour, and posted it here lol. If I had something more concrete I'd be patenting my idea and selling a home ready made kit  I'm trying to understand the technology before I analyze the economic merits either way, because having the technical knowledge would let me do my own analysis of when it might be worthwhile. Right now all I have is, nobody else does it, so it must be a bad idea. Inventions and innovations don't come about rejecting things because on the surface they seem bad. Amazon's model of shipping individual things across the country probably didn't seem like a good idea at first either. Gasoline futures seem like an option, but not sure how to go about executing that, and exactly how large the premiums would be, probably less flexibility about the quantity of gasoline (I can keep my gasoline for longer if I go through it a little slower than anticipated). | ||
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KwarK
United States44074 Posts
On April 08 2019 08:37 FiWiFaKi wrote: Yeah, I know it's extremely dangerous, but rather than just flat out rejecting it, trying to see what it would take. Temperature differences in the ground year round could cause some spooky pressure changes, so a valve of some sort for sure. I'd imagine this would be integrated into the system though, purchased from Alibaba probably. I could buy sheet metal and do the welding, but I'd rather leave that to the more experienced. @Kwark 10m^3 = 10,000L, in this case your math is off. I read it as 10 metres cubed, not 10 cubic metres. | ||
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solidbebe
Netherlands4921 Posts
On April 08 2019 08:39 KwarK wrote: I read it as 10 metres cubed, not 10 cubic metres. Thats the same | ||
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oBlade
United States6225 Posts
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Simberto
Germany11882 Posts
No. (10m)^3 =/= 10 m^3 In one case, you cube the m and the 10, in the other you cube only the m. The difference is a factor of 100. One is a tank with a volume of 10 cubic meters, the other is a cubic tank with a side length of 10m. | ||
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DarkPlasmaBall
United States46062 Posts
On April 08 2019 19:24 Simberto wrote: No. (10m)^3 =/= 10 m^3 In one case, you cube the m and the 10, in the other you cube only the m. The difference is a factor of 100. One is a tank with a volume of 10 cubic meters, the other is a cubic tank with a side length of 10m. This is purely a semantics argument, depending on language. More often than not, I've heard m^3 read as "meters cubed" as opposed to "cubic meters" when read as a unit to a number, because that's how we (Americans? New Jerseyans? The math teachers I've worked with?) typically read numbers (i.e., 5^3 is five cubed, as opposed to calling it cubic fives) and it's more consistent that way. I still understand the unit as both cubic meters (the official name of the unit) and as meters cubed (how and why it's derived- through the product of three dimensions). Whenever I read 10 m^3, I understand that as a volume of 10 units, not as a volume of 1000. | ||
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Simberto
Germany11882 Posts
Especially considering the difficulties a bunch of people (well, mostly some highschool students i am tutoring) have in differentiating (10m)^3 from 10 m^3 And yes, it is only semantics, but semantics can be the root of a bunch of misunderstandings. | ||
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Dangermousecatdog
United Kingdom7084 Posts
I've never heard of anybody interpret 10m cubed as a cube of a side length of 10m. Except by kwark just now. If someone said or wrote to me "10 metres cubed" I would always interpret it as a missay of 10 cubic metres. On the other hand if someone wanted to describe a cube of which the length of all sides is 10m, then a 10m cube would suffice. "10 metres cubed" as a 10 meter side of a cube just isn't a thing. | ||
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Acrofales
Spain18316 Posts
On April 08 2019 21:02 Dangermousecatdog wrote: For 10m^3 I would always interpret it as 10 m^3 that is to say 10 metres cubic metres. It's probably best to write 10 m3 or 10 m^3 or 10 cubic metres. I've never heard of anybody interpret 10m cubed as a cube of a side length of 10m. Except by kwark just now. If someone said or wrote to me "10 metres cubed" I would always interpret it as a missay of 10 cubic metres. On the other hand if someone wanted to describe a cube of which the length of all sides is 10m, then a 10m cube would suffice. "10 metres cubed" as a 10 meter side of a cube just isn't a thing. 10m cube = "10 meter cube". To me that sounds very very very similar to "10 meters cubed". So why is one someone misspeaking "10 cubic meters" and the other is a cube of 10 by 10 by 10 meters? Seems to me that <number> <measurement> cube(d) is simply ambiguous and can easily be misinterpreted. Learn to English. If you want to describe a cube with sides of 10m, say "cube with sides of 10 meters". If you want to say a volume of 10 m³, say "10 cubic meters". | ||
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Dangermousecatdog
United Kingdom7084 Posts
In any case 10m^3 wouldn't normally have any ambiguity. Like right now I am trying to imagine something that is exactly 10 meter sided cube. Maybe scaffolding? But would entail more questions that would remove ambiguity. | ||
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