http___livro-ensino-medio.f1cf.com.br_fisica_hr_physics-174.html_1.xml
1.1 1.2 1.3 1.4 1.5 2.1 2.2 3.1 3.2 4.1 5.1 6.1 6.2 7.1 8.1 9.1 10.1 11.1 12.1 13.1 14.1 15.1 16.1 17.1 18.1 18.2 19.1 20.1 21.1 22.1 23.1 23.2 23.3 24.1 25.1 26.1 26.2 27.1 28.1 29.1
And then ... there's more! Humans also produce magnetic fields are small in scale nanotesla (tesla (T), the unit of magnetic field). These biomagnetic fields occur from the electrical current that runs through some cells. These currents produced by changes in membrane permeability. The fields may also arise from some organs (such as liver), which accumulate the magnetic material. The study of electromagnetic fields won by the laws of Maxwell, a theoretical framework fairly consistent, even getting the status of fundamental laws. However, even with this status, these laws do not answer all the questions regarding the concept of field. Issues related to the interpretation and application of these laws have entailed the development work in the field of quantum electrodynamics and quantum chromodynamics. In these theories, which are part of what todayis often called field theory, the field seems to gain material characteristics. Physics TO THINK As we, humans, live with this electromagnetic pollution? Well, we are increasingly exposed to electromagnetic fields due to technology. ACTIVITY One of the messages of these theories is that the field may consist of particles, a kind of "soul stuff". Search in the text, the evolution of the idea of the field, until that statement. And there? You convince yourself that you are surrounded by waves and fields? References SPIDER, MLA; MARTINS MHP Philosophizing - Introduction to Philosophy. 2nd ed. Sao Paulo: Modern, 1993. Araujo, DB; RAM, AAO; Moraes, ER, Baffa, O. Biomagnetism: New Interface between Physics and Biology In: Science Today, SBPC: vol.26, No.: 153, p.24-33, 1999. DAYS VS Michael Faraday : subsidies for experimental work methodology. São Paulo, 2004. Dissertation. Gardelli, D. Concepts of Physical Interaction : Historical subsidies to approach the subject in high school. São Paulo, 2004. Master's Thesis. USP Electromagnetic Fields
1.1 2.1 3.1 4.1 5.1 6.1 7.1 8.1 9.1 10.1 11.1 12.1 13.1 14.1 15.1 16.1 17.1 18.1 19.1 20.1 21.1 23.1 24.1 25.1 26.1 28.1 29.1 30.1 31.1 32.1 33.1 34.1 35.1 36.1 37.1
A onda ... tu je više! Ljudi također proizvode magnetska polja su male razmjera nanotesla (tesla (T), jedinica magnetskog polja). Ove stavke biomagnetski javljaju iz električne struje koja teče kroz neke stanice. Te struje koje proizvode promjene u propusnosti membrane. Polja također može nastati iz nekih organa (poput jetre), koji se nakupljaju magnetski materijal. Istraživanje elektromagnetskih polja osvojili po zakonima Maxwell, teoretski okvir prilično dobra, čak i dobivanje statusa temeljnih zakona. Međutim, čak i sa ovim statusom, ti zakoni ne odgovoriti na sva pitanja vezana uz koncept području. Pitanja se odnose na tumačenje i primjenu tih zakona odvela razvojni rad u području kvantne elektrodinamike i kvantne kromodinamika. U tim teorijama, koje su dio onoga što se danasobično naziva teorija polja, polje se čini da dobije materijalna obilježja. Fizika MISLITI Kao što smo, ljudi, živjeti s ovim elektromagnetskog zagađenja? Pa, mi sve više izloženi elektromagnetskim poljima zbog tehnologije. AKTIVNOST Jedna od poruka ove teorije je da polje može sastojati od čestica, vrsta "duše stvari". Traži u tekstu, razvoj ideje o području, do tog gubitka. A tu? Vi sami uvjeriti da ste okruženi valova i poljima? Reference SPIDER, MLA; MARTINS MHPfilozofiranje - Uvod u filozofiju. Sao Paulo: Moderna, 1993. Araujo, DB, RAM, AAO; Moraes, ER, Baffa, O. Biomagnetism:Novo sučelje između fizike i biologije. U: Današnja znanost, SBPC: sv. DANI VSMichael Faraday: subvencije za eksperimentalne metodologije rada. São Paulo, 2004. Disertacija. Gardelli, D.koncepti prostornog Interakcija: Povijesni subvencije kako pristupiti predmet u srednjoj školi. São Paulo, 2004. Magistarski rad. USP Elektromagnetskih polja179