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Endy0816

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Posts posted by Endy0816

  1. Could possibly end up something like Venus too. With a day length about 117 times ours, it still maintains about the same temperature planet wide.

    I was thinking most of the ecology could be airborne, with low lying or anchored surface and underground species providing mineral resources.

  2. I think meant that their voyage was one of exploring and defining human and Federation values.

    Do you immediately assume hostile intent in a conflict if unable to communicate? Should you obey a law no matter the circumstances? Is noninterference always appropriate?

  3. Dog vs Cat ;)

    7RJieCom.jpgFLPSsVXm.jpg

     

    Do love my cat but have loved having dogs in the past.

    Lot tougher but cats can be trained to a degree. Provided she's not otherwise engaged, she will come when called and is trained to stay in the yard. Additionally she'll help out with any pests that want to freeload.

     

  4. 2 hours ago, studiot said:

    Thank you for the reply.

    The test you refer to didn't mention the environmental conditions and I couldn't see any snow in the picture but I assume the ambient temp was below 70oF.

    One thing about an IC engine is that it heats the engine gompartment and fabric of the vehicle as well.

    In countries like the UK internal condensation and corrosion is a problem in vehicles parked outside.
    This requires heat as well as ventilation to combat.

    Yeah, I don't know the exact conditions he ran the test under, thought it good to provide some numbers though.

     

    Could you run a dehumidifier? Not sure what vehicles use in the way of corrosion inhibitors or other protective measures.

    Anyways I'm still waiting for more data on EV lifespans myself, before making the switch. Mainly concerned about the batteries. Charging has become a bit more practical at least.

     

    2 hours ago, timo said:

    I helped my colleagues to move a Volkswagen E-Up for ~50 km between two cities about eight years ago - highway in one direction, smaller roads in the other. The car was used in a field test in the city I lived in, so it made sense for me to just go from/to work by car instead of by train. I drove on a cold but typical German winter day. Turning on the heating approximately halved the remaining range, and I ended up turning heating on and off periodically during the trip. I found that experience quite impressive back then, because I was not aware of such basic issues as heating before. I imagine that there is room for improvement when it comes to thermal insulation, and that newer cars perform better (the E-Up is an electric variant of a combustion engine design, so heating may not have been a big issue in the design). But that's speculation.

    The waste heat we're all used to having has left us spoiled lol.

  5. 2 hours ago, studiot said:

    We have a thread on comparing electric to heat engine powered vehicles, but this and a recent discussion elsewhere inspired me to consider passenger cabin heating in electric vehicles.

    IC engines have the advantage of a readily available heat source.

    Does anyone have any data or experience of how an electric car is heated and how much energy this takes ?

    Looks like commonly a mix of heat pumps and resistive heating.

    https://www.nissan-global.com/EN/TECHNOLOGY/OVERVIEW/heat_pump_cabin_heater.html

    Quote

    Now the first batch of new 2021 Tesla Model 3 vehicles have been delivered, and YouTuber Bjorn Nyland did a comparison test with his 2019 Tesla Model 3, which doesn’t have a heat pump:

    He let the heat run in both cars for several hours at 21C (70F) to see how much of a difference the heat pump made.

    Based on his test, he concluded his 2019 Model 3 without the heat pump required 2,170 watts to maintain the temperature. The new 2021 Model 3, on the other hand, needed only 735 watts.

    https://electrek.co/2020/12/03/tesla-model-3-heat-pump-comparison-results/

  6. I suggest picking the programming language you're most comfortable with and then determining the type of application you want to make.  A simple practical use application will tend to be easier to develop IMO.

    For the next part you'll want to imagine an attacker or a user randomly sending inputs; and attempt to defend against all undesirable outcomes that might result.

    You might want to for instance allow the user to enter a password as a security feature, but that entered information will then require input validation.

  7. Yeah, I think they're being pushed more to curb UK's imports, but have been decently successful by the looks of things. May or may not be cheaper for consumer, though also have to factor in environmental concerns.

    Would definitely look into what Danijel mentioned.

    Is it possible to directly buy the fuel you need for your cooking needs and reduce your bill that way some? Reading that some can also opt of the standing charge in exchange for paying more for what they do use. Might be an option as well.

  8. 1 hour ago, iNow said:

    Unfortunately, scenarios like GameStop hitting $483/share on Jan 28 (making it briefly the single largest company on the Russell 2000 Index) suggest a flaw in this core argument regarding the market being reflective of inherent value.

    IMO it’s much more reflective of human psychology in large groups. What these large groups choose to value on any given day is quite volatile and need not be girded by underlying infrastructure or resources. 

    Yeah, it is more perceived value though invisible hand will make any flawed perception obvious eventually.

    Granted in the Gamestop thing there was also the short sale going on. Perceived value was impacted by the knowledge that the short sellers would need to buy back the shares they were shorting.

     

  9. 4 hours ago, MigL said:

    That is the problem with cryptocurrencies, and the stock market in general.
    They are not based on anything of actual, inherent value, but a 'confidence' that they are somehow valuable.
    Elon Musk buys some verson of bitcoin for his son ( whatever his name is ) and that currency jumps in value because of E Musk's popularity/celebrity status.
    A bunch of kids push the failing stock of a gaming company on Reddit, and its stock goes up two orders of magnitude.

    Lot of the big hedge funds were attempting to short the stock and someone figured it out. Wouldn't have worked normally.

     

    4 hours ago, MigL said:

    I have a big problem with any currency that started out 30 odd years ago, by being 'mined' on computers with fast video cards.

    How exactly does that bestow a value to something ?

    Mining helps to log/verify transactions in a ledger(in addition to receiving a possible reward). Really the ledger, or blockchain, that underlies bitcoin's value. Creates artificial scarcity if you want to think of it that way.

     

  10. Comes from the Nitrogen mainly.

     

    Quote

    Deexcitation of nitrogen

    The excited nitrogen deexcites primarily by emission of a photon, with emission lines in ultraviolet, visible, and infrared band:

    N2* → N2 +

    The blue light observed is produced primarily by this process.[1] The spectrum is dominated by lines of single-ionized nitrogen, with presence of neutral nitrogen lines.

    https://en.m.wikipedia.org/wiki/Ionized-air_glow

     

    You have an... interesting.. idea of 'fun' lol. Kills me visiting relatives up North during the winter.

  11. I would probably agree that it gets you to think about numbers more.

    I have a suanpan(2 top beads, 5 bottom beads), but think the soroban(1:4) would be easier to work with. More videos available and fewer extraneous beads to deal with.

    There are ones with a bar to reset the top beads all at once, which would be nice to have, but wouldn't be a dealbreaker.

  12. On 1/29/2021 at 10:52 PM, MigL said:

    Then why do you keep comparing them ?
    ( sorry, couldn't resist that   )

    Interesting that none of you Americans can wear masks.
    AOC isn't wearing one, and MTG isn't wearing it properly.
    ( also, what's with the presumptuous 3 initials )

    Pre-covid and Twitter handle length restrictions? Just her first name and last names really.

    Wait until CaptCanuk97 is on the ballot lol.

  13. 2 hours ago, MigL said:

    Umm, windows are one thing, Zap.
    Would you feel better if you were one of the 5 killed at the Capital, or on of the 18 killed during the BLM protests?


    2-3 of those 5 weren't actually killings.

     I think I think if you read up on the more casual police brutality you'd understand where they're coming from.   terms of the actual protests there were please National Guard random federal officers and counter-protesters all mixed in.

  14. 1 hour ago, MigL said:

    Yes. Where my ( or those I care about ) life and liberty  is threatened; otherwise, no.

    The problem is by that point it can be too late. The cop 'thought his life was in danger' as you reached for your passport or if lucky you are locked up a few years for being in the vague vicinity of someone they were looking for.

     

    1 hour ago, MigL said:

    No, you have groups 'protesting' against 'blacks being killed for no reason', by hurting innocent people, destroying property, and taking over cities.
    I think I have made my stance against any kind of violent protests well known on this forum.
    Everyone has the right to protest, but that right ends when it starts infringing on the rights of others.

    I would normally agree, but in this case the underlying causes were again ignored until once more riots broke out. At some point have to ask what it will take to break the cycle.

  15. 5 hours ago, MigL said:

    Not to worry Zap, friends should be able to talk about this sort of stuff.

     

    Well, you're willing to excuse violence perpetrated in the BLM protests, because those protesters feel they are being discriminated against by Police/Justice System.
    When did violence gain a case sensitive meaning ?
    Violence IS violence.
    Whether there is an equivalence ( or not ), is immaterial.
     

    Is there any case where you would consider employing violence against the State justified?

    You have blacks being killed for no reason in their own homes by the 'lawful authorities' on the one hand and a group wanting to overturn a democratic election and hang a fellow conservative on the other.

  16. 20 hours ago, studiot said:

    Every degree above the optimal represents wasted heat and possibly dangerous conditions.

    Do you like being suddenly scalded in the shower ?

     

    Sorry, maybe should have been more clear but you need lower temperatures in general.

    phasechange.jpg

    You want to go from a gas back to a liquid. You need the return line at a cool enough temperature for that.

     

     

  17. 3 hours ago, studiot said:

    I think it is rather more complicated than that.

    The lower the input temperature the more heat you need to raise the water to the fixed output temperature.

    It also need to be considered whether the boiler is running in DHW or CH mode.

    But it is good to discuss these things to gain understanding.

    Think ideally your output temperature should vary based on heating load. If return temperature isn't low enough you won't be able to steal back the latent heat locked away. Does take the correct setup to really see the benefits.

  18. 1 hour ago, MigL said:

    What happens at the far left of that graph, when the inlet water temperature drops to 00 C ?
    You would have a nasty discontinuity ?

    Literally, as ice will start forming lol.

    5 hours ago, studiot said:

    In particular your graph show boiler 'efficiency' falling dramatically with rising water inlet temperature, which begs the question of what is meant by efficiency?

    The lower the inlet temperature, the more heat can be recovered via phase change.

     

  19. 1 hour ago, Marcus Vinicius said:

    Reproductive cloning is a method in which the DNA of an egg in an organism (A) is derived and, subsequently, the DNA of a somatic cell in an organism (B) is placed in the egg. After that, a new organism (C) with the same genome as (B) will be created. What do you think of this technique?

    Me: I would like to have a clone of myself. But I think it is bad for humanity in general, because if everyone starts to clone themselves, we would no longer have genetic variability, and that could cause several weaknesses of diseases for example.

    Depends on to what extent it is used and how the population is distributed. Cloning offers a route to rapid population growth/recovery.

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