knowledge

Knowledge is an awareness of facts, a familiarity with individuals and situations, or a practical skill. Knowledge of facts, also called propositional knowledge, is often characterized as true belief that is distinct from opinion or guesswork by virtue of justification. While there is wide agreement among philosophers that propositional knowledge is a form of true belief, many controversies focus on justification. This includes questions like how to understand justification, whether it is needed at all, and whether something else besides it is needed. These controversies intensified in the latter half of the 20th century due to a series of thought experiments that provoked alternative definitions.
Knowledge can be produced in many ways. The main source of empirical knowledge is perception, which involves the usage of the senses to learn about the external world. Introspection allows people to learn about their internal mental states and processes. Other sources of knowledge include memory, rational intuition, inference, and testimony. According to foundationalism, some of these sources are basic in that they can justify beliefs, without depending on other mental states. Coherentists reject this claim and contend that a sufficient degree of coherence among all the mental states of the believer is necessary for knowledge. According to infinitism, an infinite chain of beliefs is needed.
The main discipline investigating knowledge is epistemology, which studies what people know, how they come to know it, and what it means to know something. It discusses the value of knowledge and the thesis of philosophical skepticism, which questions the possibility of knowledge. Knowledge is relevant to many fields like the sciences, which aim to acquire knowledge using the scientific method based on repeatable experimentation, observation, and measurement. Various religions hold that humans should seek knowledge and that God or the divine is the source of knowledge. The anthropology of knowledge studies how knowledge is acquired, stored, retrieved, and communicated in different cultures. The sociology of knowledge examines under what sociohistorical circumstances knowledge arises, and what sociological consequences it has. The history of knowledge investigates how knowledge in different fields has developed, and evolved, in the course of history.

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  1. A

    I Need Work Do you know any electrician in Gravesend?

    Electrician in Gravesend needed urgently
  2. L

    Does anyone know a good college to do level 2 in South London?

    Hello everyone, I'm new to to this. I'm currently working as a mate, and looking to get qualified. I've had a look online, and have come across lots of different colleges, with wildy varying prices. Also, some of the courses offered at some places seem very short. Can anyone give me any...
  3. C

    USA Anybody know what kind of adapter this is?

    Anybody know which kind of adapter this is? It goes to some string lights at my restaurant. Trying to find a replacement.
  4. H

    Does anyone know where the LCD backlight circuit is?

    Does anyone know where the LCD backlight circuit is?
  5. N

    Anyone know where I can locate an inline surge suppressor 230 v 30A

    Anyone know where I can locate one of these, inline surge suppressor 230v 30A
  6. K

    USA Need to know...

    I have existing 230V 1P circuit (L1, L2 & Neutral) out at my deep well head. There is no practical to install/run additional circuit(s) to this location without incurring allot of expense... I need to obtain (or create) a "seperate" 120V 1P curcuit (to use in creating a set of low voltage...
  7. G

    Does anyone know a ECS training course provider in Nottingham ?

    Hi everyone I am looking to get my ECS card but have drawn a blank as to finding a training provider in Nottingham. Any ideas ?
  8. Dave Appleby

    Should know better by now.

    Ok. One new one to add to the telephone conversation before turning out... One of my regular customers. Fairly tech minded and not a frequent flyer.... Add to the telephone troubleshooting.. "Are you certain you didn't switch the main isolator off when you shoved the broom in the back of the...
  9. 4

    Does anyone know how to diagnose a faulty Dimplex Opti-Myst?

    I have a Dimplex Opti-Myst and it's become faulty. I changed the ceramic rings to be on the safe side after I needed to change the 24v fan on the side of the water tank but still very little is going on. Very faint whisps of steam rise, in fact I'd say less steam since replacing the fan, but was...
  10. B

    Anyone Know How Old This Is..?

    I was doing some work for small international student school today and in there plant room I came across the board attached, just wondering how old it was if anyone knew? It’s still running some lighting and a boiler which we are currently running new feeds for to decommission this board. The...
  11. C

    does anyone know the location of the heater resistor on a 12 plate vivaro?

    Looking to change it but don’t know the location
  12. Rockingit

    Anyone know anything about micro hydro?

    If so..... I have some questions but it seems to be a bit of a dark art! Have a client who wants to install one as he has a water course suitable, but unsure of the various combinations generation voltage / inverters / batteries / etc for UK use
  13. U

    Please can someone help me to sketch and label the cables how they runs. I really want to know how to install this manual change over.

    THIS IS FOR ELECTRICAL NEWS ONLY
  14. Darkwood

    How many of you know your internet browsing is monitored by one of the biggest apps out there.

    Just a poll for curiosity - It was only recently I found out my browsing activity on my phone is been monitored by facebook, what is scary is it does this even when you are not logged into the app', I just wondered how many know about this and how many consider this to be too much snooping? I...
  15. H

    would anyone know the actual value of the negative rail (-Vcc) for the ICL7660?

    i have been ficking through the datasheet but i cant seem to find it :(
  16. W

    Do you know these?

    whats the minimum grade fire alarm system for a new build domestic property? what’s the maximum length of a 100mm fan duct with 1x 90 degree bend? whats the maximum allowed wattage of an external lamp fitting for a domestic property?
  17. B

    UK Anybody know what a good standard TT connection point should look like? Is this dangerous?

    Would this TT connection point be at the stage where it needs repair? Under UKPN control.
  18. D

    USA Shorted a cord (cut i didnt know about) thought i blew a fuse, (tl3

    Shorted cord (unknown cut) thought it was a fuse. All fuses, TL30 and main fuses test ok on multimeter. What else could it be?
  19. Lister1987

    Making the trades (or fundamentally that knowledge behind them) accessible.

    An idea has been swimming around my head since i started my journey to becoming a electrician; Are the trades (any) accessible to those with disabilities? What's everyone's thoughts on the matter? Let's not beat around the bush here, the trades are very physical and demanding jobs however I...
  20. E

    Anyone know what this is

    Never come across these before. This is on the ground floor of block of flats, with each holder for each flat. Thinking it must be a dist board with fuses, but could each holder be just a connection to tails. Ive not actually taken one out yet to see.

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