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Se afișează postări cu eticheta physics

Answering the Vertiginous Question

Imagine
 The Vertiginous Question is a problem posed by professor Benj Hellie and is simply this: why am I me and not someone else ? In other words, how come I live in this body having this particular mind and not some other body and some other mind? How come I can cause things to happen in the world from this particular vantage point and not another (your vantage point, for example)? This will be the subject of this article. In truth, for this to be properly accommodated, an entire book would be necessary. So I will need to take some shortcuts in order to keep this article manageably long, but do so in a way that doesn't take away from the coherence of the story. For this, I need to start with physics and then build our metaphysics on it and see where that takes us. We will see why death is an illusion, why you matter, despite your fragility when compared with the enormity of what we call "the rest of the universe", how we are all "one with the world", what can we say ...

Cum a salvat mecanica cuantica Universul, partea I - Atomul lui Rutherford

Imagine
Intotdeauna atunci cand vrei sa pari inteligent este obligatoriu sa arunci in discutie termenul "cuantic". Cand oamenii aud "orice cuantic", deodata se simt invaluiti in mister, si au impresia ca discuta cu o eminenta. De fapt, de acest lucru au profitat o multime de "scam artists", care, utilizand cuvinte pompoase in reclamele pe care acestia le-au realizat in vanzarea unor "produse-minune", cum ar fi "cuantic", "energie", "energie negativa", "qualia", "legea atractiei" si altele, au pacalit o sumedenie de creduli. De la paturi cuantice la bratari cuantico-energetice, care iti "dau energia Universului", misterul cuvantului "cuantic" si al cuvintelor asociate cu acesta are o prezenta destul de importanta in societatea contemporana. De unde tot acest mister? De la faptul ca fizica cuantica este , in realitate, misterioasa. Este cu adevarat complet contra-intuitiva, complet in ...

Modelul standard al particulelor

Imagine
In trecut, lumea a fost fascinata de modul in care materia este organizata/alcatuita. Pe vremuri, oamenii credeau ca toate materialele, la baza lor, sunt alcatuite din "elemente clasice" cum ar fi pamant, apa, aerul, focul si eterul, care sa explice celelalte obiecte mai complexe (Grecia antica). Apoi a existat curentul "atomist", lansat de Democrit, conform caruia "elementele" sunt formate din "atomi", indivizibili (care nu au alte particule "mai elementare" decat acestia). Intre timp, am descoperit o sumedenie de particule subatomice care alcatuiesc materia. Aveti mai jos o poza cu acestea. Din cauza numarului mare de particule, modelul standard a mai fost denumit si "gradina zoologica a particulelor", tocmai datorita taxonomiei relativ complexe a acestora. Particulele subatomice au cateva caracteristici: 1) Masa 2) Spin 3) Interactiuni Fiecare particula, la randul ei, are aceleasi caracteristici ca orice alta...

Why is math the language of reality

Imagine
I think I'm going to make a slight change in the approach I have regarding writing my articles here, simply because it seems I have more international friends than Romanian ones - and that slight change is the fact that I will be writing my articles in English from now on. That being said, what's up with today's subject? Why talk about mathematics? Well, there are several factors at hand in this. But the most important one is that during the last period of my life I have grown tired of hearing "bullshit". What is "bullshit"? "Bullshit" is the manipulation of so-called "reality" based on non-scientific thoughts. One thing I will admit, from a philosophical standpoint , is that indeed, reality IS a collection of subjective experiences that are being realized under the control of actual, "real" objective physical phenomena. So yes, there is room for subjective interpretation of the objective reality, but there is no room fo...