aOne of the most fundamental concepts in electric circuit analysis is that of charge conservation.We know from basic physics that there are two types of charge:positive (corresponding to a proton),and negative (corresponding to electron).For the most part,this test is concerned with circuits in...
PhysicsFundamentalityCompletenessIn their recent book Every Thing Must Go, Ladyman and Ross claim: (i) Physics is analytically complete since it is the only science that cannot be left incomplete. (ii) There might not be an ontologically fundamental level. (iii) We should not admit anything ...
are overwintering sites where, from October to February, travelers can see thousands of butterflies gathering in forests in areas with mild temperatures, dappled (斑驳的) sunlight, high dampness, and little to no wind.
while temperatures are still cool, step out of the cabin(木屋)in the Fernwood Resort where youstay overnight, you'll find many butterflies hanging together on the branches and trunks of trees at the overwintering sites.As the day starts to heat up- -typically by late ...
This problem shift puts proposals for political reform in a dif-ferent light, unifies them, and suggests additional amendments. Even if heads ofstates are benevolent and wise upon ascension, they–following Acton–may becorrupted by their exclusive rights to draft men as soldiers, tax households,...
I thought we were just going to talk about physics. Well that sounds serious and dignified, and even historical, but everybody knows the stakes are high and in its own way it means there is going to be a circus maximus. I think the conference will be interesting, but I doub...
Questions 56-60 are based on the followingpassage. Byalmost any measure, there is a boom in Intemet-based instruction. In just a fewyears,34 percent ofAmerican universities have begun offering some form. ofdistance learning (DL), and among..
However, in terms of the observable quantities, like spacetime geometry, this distribution turns out to be nontrivially peaked around a particular set of universes. Semiclassically this distribution is given by the EQG density matrix and the saddle-point instantons of the above type [7]. From ...
Questions 61-65 are based on the following passage. In this age of Internet chat, videogames and reality television, there is no shortageof mindless activities to keepa child occupied. Yet, despite the competition,my 8-year-old daughter Rebecca wants to spend her leisure timewriting short...
We argue that the process matrix programme has correctly identified a notion of 'causal order' which plays an important role in fundamental physics, but this notion is weaker than the common-sense conception of causation because it does not involve asymmetry. We argue that causal order plays an...