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Energy

Energy

Header-Energia

What concept represents this so versatile word? In how many situations is the word energy used! It is used both to describe what is at stake when burning a fuel, as well as to explain someone’s praiseworthy attitude.

There was a time when Science was the object of study for philosophers. Plato in his dialogue “Teeteto” asked the question: “What is science?” And concluded that science is the “possession of truth.” Then his disciple Aristotle said that science begins with sensory perception and ends with intellectual knowledge.

For a long time, science and philosophy went together, the first as the object of the second. A clearer distinction between scientific knowledge and philosophical knowledge would emerge later, in the Renaissance, with the establishment of a science that claimed for itself exclusivity of the quantitative and the experimental.

Whether through the use of Science or the practice of Philosophy, it is part of the human being’s constitution to ask the whys of the facts observed. And, in this search for an answer, an urgency as old as it is today, the contribution of the classical philosophers is no less important than that of today’s scientists.

Analyzing the evolution of concepts, over the history of science, we see how human beings have evolved in this search. The concept of universe, for example, is very different from the old way of thinking. Or the concept of cell, which was seen as a closed cell and became an element of the integration of tissues and organs; or the atom, which went from indivisible to an infinity of sub-particles. This evolution attests to the path followed by mankind in its search for answers.

The concept of energy, perhaps more than any other, summarizes this search, because it contains within it the idea of constancy, in the midst of change, and unity, in the face of multiplicity; at the same time cause and effect. And in current times, it seems that the whole of humanity has turned towards this concept. Energy has become a word with multiple uses, both in common sense and in science, and its study was included in many disciplines, thus making it familiar to all.

Analyzing the evolution of concepts, over the history of science, we see how human beings have evolved in this search. The concept of universe, for example, is very different from the old way of thinking. Or the concept of cell, which was seen as a closed cell and became an element of the integration of tissues and organs; or the atom, which went from indivisible to an infinity of sub-particles. This evolution attests to the path followed by mankind in its search for answers.

The concept of energy, perhaps more than any other, summarizes this search, because it contains within it the idea of constancy, in the midst of change, and unity, in the face of multiplicity; at the same time cause and effect. And in current times, it seems that the whole of humanity has turned towards this concept. Energy has become a word with multiple uses, both in common sense and in science, and its study was included in many disciplines, thus making it familiar to all.

Energia-imagem03c

In Biology, for example, energy is the key to the survival of living beings as well as to the equilibrium of their habitat. In history, we see that energy is crucial to the evolution of the lifestyle of a society that, from a technology perspective, has become synonymous with development. Geopolitics today examines the division of political and geographic areas according to the disposition of energy resources. And Ecology, in turn, warns that there must be an option for cleaner forms of energy, that don’t affect nature. In Physics, the fundamental interactions of nature are studied in the light of energy. Thus, each subject, within its specific logic, contributes to an aspect of this concept. Each deals with the theme within its context, and according to its own reasons.

In Mileto, ancient Greece, a disciple of Thales, named Anaximandro, said that our world, our “cosmic building”, is derived from an imperceptible substance called apeiron, “the unlimited”, in Greek. This substance would have existed before the separation of the opposites and would represent the primal unit of all phenomena in nature. A little later, in Ephesus, still in Greece, Heraclitus, instigated by the observation that “everything changes” (panta rhei, in Greek), or that everything is in motion, made a philosophical leap when saying: “There must be something invariant in the universe, which never changes.” This something would be an ethereal element that unites all things and can transform itself into the objects we see. This substance he called “fire.”

After 2000 years, at the end of the Middle Ages and start of the Renaissance, retaking the Classical thoughts, philosophers like Leonardo da Vinci and Galileo Galilei, observed that nothing is still, all that is around us is moving. This movement may be manifested or in a latent state. Therefore, everything contains in itself what was called by Leibniz “vis-viva”, intrinsic motion. At this point the development of Mechanics as a science began. Throughout the Industrial Revolution, a veritable explosion in the use of machines took place due to the invention of the steam engine. The objective was to build a machine with absolute output, that is, that would transform all the “vis-viva” of fuel into “vis-viva” of useful motion. But it seems that something is always lost in this transformation. This led to the formulation of the principle of conservation of the “vis-viva” by D’Alembert, which is the embryo of the concept of mechanical energy: kinetic and potential.

At the end of the 19th century and beginning of the 20th, the evolution of science enabled a new look at the phenomena of transformation present in nature. A luminous body emits electromagnetic radiation of a broad spectrum. These electromagnetic waves interact with matter making its molecules vibrate, thereby increasing its temperature; or, the radiation can “grab” the electrons as it reaches the material, and these, if properly conducted, generate an electric current. Therefore, light, heat, electricity and magnetism are different manifestations of the same entity, which is also present in mechanical, chemical, gravitational and nuclear phenomena. And to finish, Einstein gives us a surprising interpretation to matter itself by the formula e = mc2!

When, in this incessant search, this entity needed a proper word for its description, it was a text of Aristotle that provided it. From what we know, it was he who used the word “energeia” for the first time. Energeia, in Greek, is formed by the prefix “em” which means “inside” and the word “ergon” which means “work.” Thus, energy is the “work that comes from within” or the “force of manifestation.” In his text “Nicomachean Ethics”, after a long rationale, Aristotle concludes:

The good of man appears to us as an activity of the soul in harmony with virtue.”

The good of man appears to us as an activity of the soul in harmony with virtue”.

This activity of the soul he wrote in ‘first hand’ as: “psyches energeia.”

Thus we see that the word, now used in countless situations, was brought from a broader context, the closest to that of “vital energy”. As if we always knew that everything is ENERGY.

Aristotle – Ética a Nicômaco (“Nicomachean Ethics”) Coleção os Pensadores, Editora Abril, 1984.

Lindsay, R.B. “The Concept of Energy and its Early Historical Development” – Plenum Publishing

Corporation, 1971.

Burattini, M.P. Energia – Uma abordagem Multidisciplinar (“Energy – A Multidisciplinary Approach”) Editora Livraria da Física, 2008.

Textos Fundamentais da Física Moderna. Vol.1. Princípio da Relatividade (Fundamental Modern Physics Texts Vol.1 – Principle of Relativity). Fundação Calouste Gulbenkian, 1971.

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Hello !

Welcome to the internal Home Page of the PRÓ-VIDA website. In this environment you will find information about our movement, such as the activities calendar, news and content that may be of interest to you.

Where to find the activities?

You will find the activities calendar right at the top of the home page and, to see all the available activities, just click on “See full calendar”.

The activities are organized by language, time zone, modality (in person, online, or remote in-center), and categories:

  • BAS, AV1 and INT weeks
  • Exercises and Training
  • Lectures and Talks
  • Advanced Levels
  • CGD (General Center for the Tithe)
  • Departments

What activities can I participate in?

You will be able to participate in all available activities, according to your level. They are identified in the calendar by a stripe with the color of the level, on the left side of the activity name.

Basic Level

Every Monday, online Basic Level activities are available. They are offered in four languages ​​(Portuguese, Spanish, Italian and English) and different time zones.

In addition, starting at the Basic Level, you will be able to participate in all the activities identified with the following colors:

Weeks, lectures and exercises aimed at participants from the Basic Level and up.

Here you can find activities such as Keeping in Touch, celebrations, and ceremonies.

Activities carried out by PRÓ-VIDA Departments, such as lectures, presentations and studies.

Check the calendar for upcoming activities and check their times.

Advanced 1​ Level

Activities for the Advanced 1 Level and up are also available for those who have completed that level

Weeks, lectures, exercises and talks for participants from Advanced 1 Level and up.

Introduction Level

For those at the Introduction Level, also the following activities are available:

Weeks, lectures, exercises, and talks for participants from the Introduction Level and up.

Activity for all PRÓ-VIDA participants, starting at the Introduction Level.

Advanced 2SC Level

From Advanced 2 Level and up, the following activities are also available:

Weeks, lectures, exercises and talks for participants from the Advanced 2SC Level and up.

How to browse the site?

Navigate through the pages and contents of the site by clicking the links on the top golden bar or the “hamburger button” (≡), located in the upper left corner.

In addition to content and articles on various topics, you will be able to access some important areas for your participation in the activities:

Online Activities: It’s the place where you will access the activities that will be transmitted in the online modality.

Participant’s Area: It gathers information about your registration and your level in PRÓ-VIDA.

Need help?

If you need help, or to clarify any questions, contact our support by e-mail: foundation.secretary@provida.net.

Modalities of PRÓ-VIDA activities

In-person

Presenter in-center

Participants in-center

This is a live activity carried out in one of the PRÓ-VIDA Centers with both the presenter and the enrolled participants attending in-person.

Remote in-center

Remote presenter

Participants in-center

The activity is transmitted live from one of the PRÓ-VIDA studios to several Centers where the participants are attending in-person. It allows the presenter and the participants to interact despite the fact that the presenter is in a remote location. 

Online

Online presenter

Online participants

The activity is transmitted live from one of the PRÓ-VIDA studios and enables interaction between participants and the presenter in a virtual environment.

To learn more about the modalities, talk to a PRÓ-VIDA representative by chat or email secretaria@provida.net (for Brazil residents) or foundation.secretary@provida.net (for residents in other countries).

SEG    SEX

22-26

NOV    NOV

Online

Semana de Avançado 1

PT

Será transmitido nos idiomas e horários locais:

PORTUGUÊS - COM INTERAÇÃO

Segunda a sexta-feira

às 20h30*

Hora de São Paulo

*A atividade tem duração aproximada de 3 horas.

Para saber como participar, clique abaixo.

MON    FRI

06-10

DEC    DEC

Online

Semana de Introdução

PT

It will be transmitted in the following language ​​and times:

PORTUGUESE - WITH INTERACTION

Monday to Friday

at 8:30 p.m.*

Time Zone: (UTC-03:00) Brasilia

*The activity lasts approximately 3 hours.

To find out how to participate, click below.

No registrations will be made on the weekend before the activity, or in the week it takes place.

SEG    SEX

25-29

OUT    OUT

Online

Semana de Avançado 1

PT

Será transmitido nos idiomas e horários locais:

PORTUGUÊS - COM INTERAÇÃO

Segunda a sexta-feira

às 20h30*

Hora de São Paulo

*A atividade tem duração aproximada de 3 horas.

Para saber como participar, clique abaixo.

SEG    DOM

08-14

NOV    NOV

Online

Semana de Básico

PT

Será transmitido nos idiomas e horários locais:

PORTUGUÊS - COM INTERAÇÃO

Segunda a sexta-feira

às 20h30*

Sábado

às 14h30*

Domingo

às 10h00*

Hora de São Paulo

*A atividade tem duração aproximada de 3 horas.

Para saber como participar, clique abaixo.

*Para repetição oficial, participantes que estão retornando ou em R.A., em breve mais informações.

Requisitos técnicos indispensáveis

Gostaríamos de informar que, para a participação no Básico on-line, são indispensáveis os seguintes requisitos mínimos:

Computador (Windows/Mac)

Computador com câmera integrada ou conectada por entrada USB.

As atividades não poderão ser assistidas por nenhum outro dispositivo, tais como celulares, smartphones e tablets ou computadores com outros sistemas operacionais.

Especificações e Sistema Operacional

• Processador: Intel Core i3, i5 e i7 – 3100 Series , ou superior.

• Memória RAM: 4GB, ou superior.

• Sistema Operacional:

• Windows 7 com todas as atualizações, ou versão superior (somente 64 bits).

• MacOS 10.15 Catalina, ou versão superior.

Verifique as configurações de seu computador Windows clicando aqui.

Como verificar suas especificações no Mac? Clique aqui.

Fones de ouvido com microfone (headset)

Modelos homologados para uso com nossa plataforma.

Consulte a lista de headsets homologados:

Internet

Banda larga com conexão estável, com no mínimo 10MB de download e 4MB de upload.

Como verificar sua banda de internet? Clique aqui para testa-la.

* Os requisitos técnicos poderão ser atualizados. Acompanhe aqui eventuais alterações.

Fones de ouvido homologados

Marca

Modelo

Tipo

Bose

Quiet Comfort 35 Stereo

USB e Bluetooth

Dell

Pro Stereo Headset UC150

USB

Jabra

BLZ 2400 II

USB

Jabra

Evolve 20 MS

USB

Jabra

Evolve 75

USB e Bluetooth

Jabra

UC Voice 550a MS Mono

USB

JBL

Everest Elite 750NC Stereo

Bluetooth

Logitech

Headset H390

USB

Logitech

Stereo H650e

USB

Microsoft

LifeChat LX-3000

USB

Microsoft

LifeChat LX-6000

USB

Plantronics

Blackwire 320

USB

Plantronics

Blackwire 3220 Series

USB

Plantronics

Blackwire C220

USB

Plantronics

Audio 628 USB

USB

Samsung

USBC Headset

USB

Sony

WH-CH700N

USB

Sony

Headset Pulse 7.1

USB

Sony

WH-XB900N

Bluetooth

Atualização: 11.06.2021

Regras de conduta para prevenção da COVID-19

Uso de Máscaras

Cobrindo a boca e o nariz. Usar o tempo todo.
Evitar tocar a boca, o nariz e os olhos.

Distanciamento

Mínimo de 2 metros

Mãos

Lavar frequentemente ou higienizar com álcool em gel.

Etiqueta Respiratória

Ao espirrar ou tossir, proteger a boca e o nariz com o cotovelo, ou usar lenço descartável.

Sintomas

Se apresentar sintomas, ficar em casa e buscar atendimento médico.