Kategorie Argief: Fisika

Fisika was my eerste liefde. Hierdie kategorie bevat die poste wat die naaste aan my hart. Twintig jaar van nou af, As hierdie blog oorleef, hierdie kategorie sal waarskynlik my mees blywende insigte hou. En twee honderd jaar van nou af, as ek onthou ten alle, dit sal wees vir hierdie insigte; nie vir die soort van persoon wat ek is, die geld wat ek maak, of enigiets anders. Slegs vir my eerste en laaste liefde…

Deeltjies en Interaksies

Onlangs, Ek het 'n praatjie oor deeltjies en interaksies te klasmaats my dogter se wat van plan was om op 'n reis na DESY, Duitsland en wou 'n idee van wat dit was alles oor het. Soos my eerste sprake van hierdie soort, Ek was 'n bietjie senuweeagtig, want ek het nie geweet watter vlak, en agtergrond, Ek moet die praatjie by te pen. Ek wou nie dit te basiese maak, wat ek gedink het sou 'n vermorsing van tyd wees. Ook het ek wil dit te tegnies te maak, wat dit ook nutteloos in 'n ander manier sou maak.

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Sensory and Physical Worlds

Animals have different sensory capabilities compared to us humans. Cats, byvoorbeeld, can hear up to 60kHz, while the highest note we have ever heard was about 20kHz. Apparently, we could hear that high a note only in our childhood. So, if we are trying to pull a fast one on a cat with the best hifi multi-channel, Dolby-whatever recording of a mouse, we will fail pathetically. It won’t be fooled because it lives in a different sensory world, while sharing the same physical world as ours. There is a humongous difference between the sensory and physical worlds.

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Probleem van die vrye wil

Vrye wil 'n probleem. As ons almal is fisiese masjiene, gehoorsaamheid aan wette van fisika, dan sal al ons bewegings en geestelike state word veroorsaak deur gebeure wat vroeër plaasgevind het. Wat veroorsaak is ten volle deur die oorsaak. Dus, wat ons nou en in die volgende oomblik doen is al voorafbepaalde deur voorafgaande gebeure en oorsake, en ons het geen beheer daaroor. Hoe kan ons dan vrye wil? Die feit dat ek skryf hierdie nota op vrye wil — is dit heeltemal en totaal bepaal deur die gebeure van die vroegste tye? Dit beteken nie reg klink.

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What Does it Feel Like to be a Bat?

It is a sensible question: What does it feel like to be a bat? Although we can never really know the answer (because we can never be bats), we know that there is an answer. It feels like something to be a bat. Wel, at least we think it does. We think bats have bewussyn and conscious feelings. Aan die ander kant, it is not a sensible question to ask what it feels like to be brick or a table. It doesn’t feel like anything to be an inanimate object.

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Ander Bekende Sameswerings

'N sameswering teorie bly 'n teorie en voer vir crackpots totdat dit wyd oop geblaas. Op daardie stadium, die crackpots geword bekroonde joernaliste en die leiers wat die nasionale helde oorweeg word sociopathic misdadigers. So is die wispelturigheid van die populêre mening, en so sal dit wees met die 9/11 sameswering wanneer dit wyd bekend (As dit nie altyd) dat dit 'n sameswering.

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The Origins of Gods

The atheist-theist debate boils down to a simple question — Did humans discover God? Of, did we invent Him? The difference between discovering and inventing is the similar to the one between believing and knowing. Theist believe that there was a God to be discovered. Atheists “weet” that we humans invented the concept of God. Belief and knowledge differ only slightly — knowledge is merely a very very strong belief. A belief is considered knowledge when it fits in nicely with a larger worldview, which is very much like how a hypothesis in physics becomes a theory. While a theory (such as Quantum Mechanics, byvoorbeeld) is considered to be knowledge (or the way the physical world really is), it is best not to forget the its lowly origin as a mere hypothesis. My focus in this post is the possible origin of the God hypothesis.

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9/11 Debunkers

Persoonlik, one of the main reasons I started taking the conspiracy theories about 9/11 seriously is the ardor and certainty of the so-called debunkers. They are so sure of their views and so ready with their explanations that they seem rehearsed, coached or even incentivized. Looking at the fire-induced, symmetric, and free-fall collapse of WTC7, how can anyone with any level of scientific background be so certain? The best a debunker could say would be something like, “Ja, the free-fall and the symmetry aspects of the collapse do look quite strange. But the official explanation seems plausible. Ten minste, it is more plausible than a wild conspiracy by the government to kill 3000 of our own citizens.” But that is not at all the way they put it. They laugh at the conspiracy theories, make emotional statements about the technical claims, and ignore the questions that they cannot explain away. They toe the official line even when it is clearly unscientific. They try to attack the credibility of the conspiracy camp despite the obvious fact that it has the support of many seasoned professionals, like architects, physics teachers, structural engineers and university professors.

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Atheism and Unreal God

The only recourse an atheist can have against this argument based on personal experience is that the believer is either is misrepresenting his experience or is mistaken about it. I am not willing to pursue that line of argument. I know that I am undermining my own stance here, but I would like to give the theist camp some more ammunition for this particular argument, and make it more formal.

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9/11 – Motives for Mass Murder

In the first post in this series, we saw that 7 World Trade Center building was the smoking gun of a possible conspiracy behind the 9/11 attack. The manner in which it collapsed and the way the collapse was investigated are strong indications of a conspiracy and a cover up. Egter, when I first heard of the conspiracy theory in any serious form, the first question I asked myself was why – what possible motive could any person or organization have to commit mass murder at this scale? I honestly couldn’t see any, and as long as you don’t see one, you cannot take these conspiracy theories seriously. Natuurlik, if you buy the official story that the conspiracy actually originated in Afghanistan among terrorist monsters, you don’t need to look for any rational motives.

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Atheism vs. God Experience

I have a reason for delaying this post on the fifth and last argument for God by Dr. William Lane Craig. It holds more potency than immediately obvious. While it is easy to write it off because it is a subjective, experiential argument, the lack of credence we attribute to subjectivity is in itself a result of our similarly subjective acceptance of what we consider objective reason and rationality. I hope that this point will become clearer as you read this post and the next one.

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