sexta-feira, 28 de fevereiro de 2014

hora do Angelus


Zezé di Camargo e Luciano -Caruso (legendado em português) - Canção em h...

Zezé Di Camargo & Luciano - Planeta Agua

Zezé Di Camargo & Luciano - Mexe Que é Bom

The Isley Brothers - Shout! Lyrics [on screen]

OUTKAST Hey Ya! Lyrics

Pink - Raise Your Glass { Lyrics Video }

LMFAO - Party Rock Anthem ft. Lauren Bennett, GoonRock [LYRICS on screen]

Rihanna - we found love ft. Calvin Harris LYRICS

"Billie Jean" by Michael Jackson w/ Lyrics

Thrift Shop- Macklemore & Ryan Lewis ft. Wanz (Lyrics)

Yeah! - Usher ft. Lil' Jon & Ludacris Lyrics!

Twist and Shout Lyrics The Beatles

Def Leppard - Pour Some Sugar On Me (lyrics)

V.I.C. Wobble Lyrics

Carly Rae Jepsen Call Me Maybe (Lyrics Sub Español) Official Video.f...

Moves Like Jagger Lyrics - Maroon 5 feat. Christina Aguilera

Beyonce - Single ladies - lyric video

Love Shack LYRICS by B52's

Sweet Caroline lyrics style of Neal Dimond

DJ Casper - Cha Cha Slide lyrics

Psy - Gangnam Style - Lyrics

Van Morrison Brown Eyed Girl lyrics

AC/DC - You Shook Me All Night Long [Lyrics In Description]

Bon Jovi - Living on a Prayer (Lyrics)

LMFAO - Sexy and I know it ( Lyrics )

Black Eyed Peas - I Gotta Feeling ( Lyrics/Songtext )

Cupid Shuffle Lyrics

Journey - Don't Stop Believing Lyrics

Sexy Table Dancer Gag

Sexy Foot Play

basta BRASIL.......ESTAMOS FARTOS.......






Exatos 181 países fazem parte da ONU. Em um só se paga salário a 
vereadores ou a pessoas que exercem funções equivalentes.
 Adivinhe… A única invenção brasileira reconhecida em fóruns
 internacionais é a duplicata mercantil. Data da época em que Dom 
João VI transferiu para o Rio a sede do império português. Nem o
 avião é, apesar do proclamado pioneirismo de Santos Dumont. Pois
 a segunda invenção à espera de reconhecimento universal é o 
vereador pago. O vereador pago é como a jabuticaba, uma fruta 
genuinamente nacional.Em raros dos outros 180 países, paga-se
 simbólica quantia aos conselheiros municipais. Eles se reúnem 
em local cedido pela administração do lugar. Oferecem lá suas
 idéias e vão para casa.
 No Brasil, até 1977, somente os vereadores de capitais recebiam

 salários. Para fazer média com os políticos depois de ter fechado 
o Congresso, o general-presidente Ernesto Geisel estendeu o
 benefício aos demais vereadores. Nos 5.561 municípios havia um
 total de 60.267 vereadores até 2004. A Justiça Eleitoral passou a
 faca em mais de oito mil vagas. O Congresso ameaçou aprovar uma 
Proposta de Emenda à Constituição que fixava em 57.295 o número d
e vereadores. Recuou e o número ficou em 50.653. Poderia ser o
 dobro disso desde que pouco ou nada custassem aos nossos 
bolsos.Sabe quanto eles custam? Algo como R$ 4,8 bilhões anuais.
ATE QUANDO IREMOS SUPORTAR ESTE  FARDO PESADO 
E  IMPRODUTIVO ???

Police Honk At Sexy Girls Prank

Sexy Bikini Girls Photoshoot Fart Prank

Sexy Boobs Photo Prank

Sexy Girl Public Shower Prank

Sexy Lingerie Nun Poster

James Last- Non Stop Dancing 12, Part 2 of 3

James Last- Non Stop dancing '85, Part 1 of 3

James Last - Hey Tonight - She's a Lady - What is Life - Ich bin verlieb...

James Last - Trink, Brüderlein trink - Du, du liegst mir im Herzen - Bum...

James Last - Du darfst mich lieben für drei tolle Tage - Hab'n Sie nicht...

James Last - Zabadak - Kalle mit der Kelle - Zuviel Whisky - Liebe klein...

James Last - Rucki-Zucki - Schönes Mädchen aus Arcadia - Freu' dich doch...

Romance - Beethoven - ( James Last Orchestra )

Titanic Love Theme-James Last and Orchestra

Bolero - Maurice Ravel - James Last and His Orchestra

"El Condor Pasa" James Last Orchestra

"El Condor Pasa" James Last Orchestra

JAMES LAST - Don't Cry For Me Argentina

JAMES LAST - Wien Bleibt Wien

James Last - Wien Bleibt Wien

James Last - Blaze Away

James Last - Gruß an Kiel

James Last - Radetzky-Marsch

James Last - Liechtensteiner Polka

James Last - Petite fleur

James Last - Adelita

James Last - La Golondrina

James Last - Amapola

James Last - La Bamba

James Last - La Paloma

James Last - La Cumparsita

James Last - Adios, Pampa Mia

ROBERTO CARLOS - Todos sus grandes éxitos, sus 20 mejores canciones.- V...

FOLCKLORICAS ROMANTICAS 100% LATINOAMERICANAS FULL MIX SOLO EXITOS CORTA...

MUSICA ANDINA (3 de 3).Son 18 temas instrumentales seleccionados por Cec...

El condor pasa - PERU

Tarancon Soy libre, soy bueno

CORDILLERAS (Musica Instrumental Andina)

"Boquita de Cereza" by Tarancón (Brasil, 1976)

Feuerkraft in Kunduz

Gefährliche Versorgung

Nachschub rollt

Bison Check

Das Gefechtsfahrzeug Hägglund

Gepard

New German HK121 machine gun (Der nachfolger vom MG3 der Bundeswehr)

Ultimate Military Technology - German Weapons of War - 2011 - #1

DefenceTalk | Defense & Military News – Forums – Pictures – Aerospace


Home » World Armed Forces » Rest of the World » European Armed Forces »
Sweden » Air Force » JAS 39 Gripen


Read more: http://www.defencetalk.com/pictures/jas-39-gripen/p20892-jas

-39-gripen.html#ixzz2ucKNUrJb
gripen8

Jas 39 Gripen

gripen41.jpg


WEAPONS

Syria says Israel hit military research center

Syria says Israel hit military research center
An Israeli air strike hit a military research centre near Damascus at dawn on Wednesday, the Syrian army said, denying reports that the raid targeted a weapons convoy near the Lebanese border. Residents who spoke to AFP on condition of […]

Joint-Venture Harpia Sistemas Unveils UAV Design

Joint-Venture Harpia Sistemas Unveils UAV Design
Back in September Embraer formalized the creation of a joint-venture between its defense division, Embraer Defesa e Seguranca S.A. and Elbit Systems’ Brazilian subsidiary Aeroelectronica (AEL) Sistemas to create Harpia Sistemas. Embraer Defesa will own 51% and AEL will take […]

Bringing Back Counter-Insurgency: AT-6B vs. A-29B

Bringing Back Counter-Insurgency: AT-6B vs. A-29B
In the next few months the U.S. Air Force will have to pick the winner of the Light Attack Armed Reconnaissance Aircraft (LAAR) competition. This decision will influence how the U.S. Air Force carries out close air support (CAS) and […]

RQ-11B RAVEN

RQ-11B RAVEN
Mission The RQ-11B Raven small unmanned aircraft system provides real-time direct situational awareness and target information for Air Force Special Operations Command Battlefield Airmen and Air Force security forces. The Raven falls into the class of Air Force small UAS […]

Archer-Class Submarines, RSN

Archer-Class Submarines, RSN
The Archer-class submarines (ex-Royal Swedish Navy’s Vaastergotland-class submarines) were designed and built by the Swedish company, Kockums AB, as single-hull, double compartment submarines optimised to reduce noise and magnetic signature. The two pressure-tight compartments also enhance safety and survivability of […]

The Ballistic Missile Defense System

The Ballistic Missile Defense System
One of the greatest threats facing the world today is the increasing proliferation of ballistic missiles and weapons of mass destruction. Non-proliferation activities, to include diplomacy and arms control agreements with Russia, have been successful in reducing this threat. Despite […]

Turkish Utility Helicopter Programme TUHP 149

Turkish Utility Helicopter Programme TUHP 149
The TUHP 149 is the AgustaWestland candidate for the Turkish Utility Helicopter Programme (TUHP). It is a new generation 8.1 ton medium lift helicopter with inherent multi-role capabilities designed to meet modern military requirements. Design Features The helicopter features a […]

Sea-Based X-Band Radar

Sea-Based X-Band Radar
The Sea-Based X-Band (SBX) Radar tracks, discriminates, and assesses the flight characteristics of ballistic missiles. The SBX provides an advanced capability to the overall Ballistic Missile Defense System (BMDS). It greatly increases the Missile Defense Agency’s ability to conduct operational […]

FB-111 Strategic Bomber

FB-111 Strategic Bomber
The FB-111A, manufactured by the General Dynamics in December 1966, evolved in a bid to replace the B-58 and to have the mission flexibility the B-58 lacked. The swing wing design of the aircraft was proposed to meet an Air […]



Read more: http://www.defencetalk.com/weapons/#ixzz2ucK9eYh1

according recalling Arms Control Advances in Science and Technology and the Chemical Weapons Convention


Advances in Science and Technology and the 

Chemical Weapons Convention


Ralf Trapp
With the second review conference of the Chemical Weapons Convention (CWC) approaching
 in April, a raft of studies have appeared making clear that fundamental changes in science
 and technology are affecting the implementation of the treaty and that it must be adapted to
take account of them.[1]
The most significant development is the revolution in the life sciences and related technologies,
including a growing overlap between chemistry and biology. There is a vastly increased
understanding of the functioning of biological systems as a result of the mapping of the human
 and other genomes as well as of advances in structural biology and the study of proteins
(proteomics). Information technology and engineering principles are increasingly integrated
 into biology. The intersection between chemistry and biology has further expanded thanks in
part to the automation of synthesis and screening of chemical compounds enabling laboratories
 to assess vast numbers of new chemical structures and a much-enhanced understanding
 of how certain “chemicals of biological origin” act. Technological advances supplement these
trends, for example, providing for more efficient means of delivering biologically active chemicals
 to target populations or targeting organs and receptors within an organism.
These developments are expected to bring many benefits, including new medical treatments and
methods of pest control. At the same time, the capacity to discover or design new chemical
 structures that may have utility as chemical warfare agents has also increased significantly.
Novel agents can be created far more quickly than ever before. In addition, advances in manufacturing
technology have shortened other time requirements, enabling shortcuts in the progression
 from research and development to full-scale manufacturing. Changes in the chemical industry
have dispersed technology and facilities, complicating verification and traditional nonproliferation
strategies.
As a result, the time and effort needed to field a new chemical weapon has shrunk, particularly in
the early stages, while the capability to detect such actions has not grown significantly. These trends
and a recently increased interest in the use of incapacitants for law enforcement purposes raise at
least the threat that states could skirt or quickly break out of the CWC prohibitions on developing
and acquiring chemical weapons. It has also enlarged the overlap between the two otherwise
quite separate treaties governing chemical and biological weapons, the CWC and the Biological
Weapons Convention (BWC). States-parties need to adapt the implementation of the CWC
 to account for these changes or risk diminishing confidence in its effectiveness and endangering
 its viability.
Advances in Technology and Industry
To be sure, many traditional obstacles remain to the development of chemical weapons in a state-level program. Most importantly, any potential agents must meet tough requirements before they can be fielded. These include the possibility of industrial-scale production, tactical mixtures that can be effectively disseminated and are sufficiently stable for long-term storage, effective dissemination equipment/devices, and adequate means of ensuring that one’s own forces are protected.
These constraints do not apply to the threats of terrorist chemical weapons use. The threat that terrorists may use toxic chemicals, however, correlates more closely with the accessibility of toxic materials than with the evolving scientific capability to develop novel agents in the laboratory. That is not to dismiss the concern, but the problem is less one of enforcing an international norm such as the CWC than of how states, companies, and research institutions can control access to chemical facilities and materials.
Technological change can also bring significant benefits to the fight against chemical weapons. For example, advances in nanotechnology are expected to help in developing more effective protections against agents, such as new detection devices (faster, cheaper, more sensitive, and more selective sensors), and improved filtration materials, means of decontamination, and medical countermeasures.
Still, these scientific and technological gains undoubtedly come with new concerns. Nanotechnology offers the possibility to engineer “smart” materials that respond to specific stimuli. It also promises a more efficient and targeted drug delivery via the respiratory system and other pathways. For example, it could facilitate the entry of toxic chemicals into the body or specific organs, in particular the brain, for selective reaction with specific gene patterns or proteins or for overcoming the immune reaction of the target organism. These developments may have significant applications as new medicines and treatments. They could, however, also be exploited for the development of new chemical warfare agents or the fine-tuning of existing ones. Any offensive chemical weapons program begun today would surely take advantage of these new methods and concepts.
Technological advances continue to change the manufacturing processes in the chemical industry. New processes are being introduced to increase efficiency and yield, including a range of new catalytic processes. The use of multipurpose equipment and the adoption of on-demand principles has become a common feature. Manufacturers adjust to changing market demands and increasingly use technologies and equipment that allow them to switch production output on short notice. Although allowing chemical plants to be converted to the production of new products, this also means that there is a risk of standby capabilities appearing that could easily and quickly be switched to supplying an offensive chemical weapons program.
A more recent development is the use of microreactors, which have begun moving from the laboratory to (limited) industrial production. One of the driving factors is safety: chemicals that are otherwise hazardous to manufacture, handle, or store can be produced safely on-site when needed. In addition, capital costs for such facilities are low, and many chemical reactions show improved reactivity, product yield, and selectivity when performed in microreactors. Microreactors allow companies to scale up a chemical process from laboratory to industrial scale more quickly and easily. Production output can be increased by combining multiple reactors in batteries, a process also known as “numbering-up.”
Of course, these advantages could also apply to new chemical warfare agents. The use of microreactors can significantly shorten the time required to synthesize new toxic chemicals for testing and development purposes. Microreactors can apply combinatorial principles to synthesize a series of related compounds for test purposes, or they can be used to make small quantities of toxic chemicals easily and quickly during the development of a new agent for weaponization. Worryingly, if states were to produce chemical weapons in such reactors, there would be fewer clues that might indicate to outsiders that such production was taking place. Traditional industrial-scale chemical weapons production facilities require heavy-duty ventilation systems, scrubbers, and high stacks. Because processing highly toxic or corrosive materials in microreactors produces fewer waste streams and reaction yields are much higher, there is less need for telltale pollution abatement systems.
In addition, structural change in the chemical industry could also pose risks to CWC implementation. Driven by market forces, the industry is moving from its traditional production locations (Japan, the United States, and western Europe) to new places in Asia, eastern Europe, Latin America, and the Middle East. Some of the countries involved in setting up new chemical operations have limited experience in regulating chemicals or weak implementation systems for the CWC. At the same time, international trade in chemicals is on the increase. These are challenges to the CWC’s verification system as well as to traditional nonproliferation measures in the chemical field.
Recommendations to the Review Conference
What, then, are the issues that the upcoming review conference ought to consider when it assesses the impact of advances in science and technology on the operation of the CWC?
A first is whether the CWC’s schedules, which attempt to characterize agents and precursors by their risk based on past weaponization and other factors, need to be amended. Currently, the Organization for the Prohibition of Chemical Weapons (OPCW), the international body charged with implementing and verifying the CWC, and states-parties tightly control high-risk chemicals (Schedule 1). This is feasible because these agents and key precursors, as a rule, have very few legitimate uses. States and the OPCW less stringently control Schedule 2 and 3 chemicals, which have legitimate uses ranging from smaller-scale specialty chemicals to mass-produced chemicals and thus have much higher thresholds before such production triggers declarations and inspections. Should the growing overlap between chemistry and biology and the emergence of new biologically active compounds necessitate the inclusion of new chemicals into the schedules or are the schedules unfit to deal with these emerging risks? Including new chemicals with potential chemical weapons utility in Schedule 1 would severely hamper their legitimate uses. Listing them in Schedules 2 and 3 might be meaningless given the relatively high thresholds for declaration and inspection; many would simply fall through the net.
If the schedules were to remain as they are, there is a risk that the CWC verification system may get stuck in the past. One way to avoid this fate would be to step up the frequency and effectiveness of verification at other chemical production facilities (OCPFs) producing unscheduled discrete organic chemicals.[2] This relates to a number of issues: the overall number of OCPF inspections that is desirable, the amount of information available on these facilities to the OPCW Technical Secretariat, an improved site selection mechanism for inspections, the level of expertise at the OPCW to ensure that inspectors can adequately assess facility capabilities during an inspection, and the ability to use inspection methods such as sampling and on-site analysis. There is, however, a degree of reluctance to respond to the trends in chemicals manufacturing with a shift in verification focus. Some developing countries see suggestions to shift emphasis from verifying scheduled chemicals to OCPFs as an attempt to exercise control over the use of chemical technology and to shift the burden of verification to the developing world. They are therefore reluctant to accept that the OCPF verification regime needs to be further enhanced in response to trends in the chemical industry.
In a broader context, to adapt the CWC to the new challenges emanating from advances in the life sciences will require consideration of how best to reinforce the “general purpose criterion.”[3] This includes national implementation (legislation, regulations, and enforcement); the recognition that the schedules must not limit the scope of the CWC; and the need to ensure effective (self-)governance of the life sciences as well as industry. One example of this is the Responsible Care program, a global voluntary chemical industry initiative to improve health, safety, and environmental performance; communicate with stakeholders; and apply self-regulatory measures to ensure compliance with regulations, including the CWC.
A second issue relates to how verification can make use of new opportunities created by science and technology, such as new or improved verification equipment and methods. The OPCW has identified gaps in its tool box, for example, with regard to analyzing biomedical samples. This capability gap affects the OPCW’s ability to investigate allegations of chemical weapons use and should be closed swiftly. There are also efforts under way to improve further the OPCW’s capability to conduct environmental sampling and analysis on-site and to use other inspection methods. The review conference should encourage the OPCW Technical Secretariat to make best use of technological advances so as to maintain a high standard with regard to its verification methods and equipment.
A third issue is whether technological and scientific advances might aid the destruction of chemical weapons, particularly old and abandoned chemical weapons and those dumped in the sea.[4] This is an area where the review conference could encourage further cooperation between states-parties and the sharing of assessments, experience, and technological know-how.
A fourth issue is how advances in science and technology will help improve protection against chemical weapons. Many of these advances can help upgrade the protection against chemical agents, enhance decontamination capabilities, or lead to new medical countermeasures. This is important as states harden their structures against the menace of chemical terrorism. It will also have a deterrent effect against the use of chemical weapons by states that still remain outside the regime. The review conference should recognize the need to improve the protection against chemical weapons further, encourage cooperation and exchanges between the states-parties in this field, and call on the Technical Secretariat to help states-parties develop and improve their protective capabilities. For example, this could include exercises to simulate national and international response mechanisms to chemical incidents.
A fifth issue relates to the CWC objective to enhance international cooperation in the peaceful uses of chemistry. Recent scientific and technological advances will create many opportunities in this respect, but they must be pursued in recognition of the fact that international cooperation must be fully consistent with the CWC’s disarmament and nonproliferation obligations. There is therefore good reason to maintain a strong link between international cooperation programs and OPCW efforts to promote national implementation and ensure effective verification. The review conference should recognize that the OPCW is not a development agency but that its efforts with regard to industry verification as well as helping states-parties adopt national regulations and controls in the chemical field will facilitate trade and investment into the emerging chemical sectors of developing countries.
Finally, the arms control community has over the past four decades kept a clear demarcation between chemical and biological weapons. The CWC and the BWC have taken different directions with regard to a number of implementation issues, most prominently verification. In the real world of research and, increasingly, industry, the borders between the two fields are getting blurred. What the implications will be for the two regimes has yet to be fully understood. At the national level, there are signs of what one might call “regime conversion,” with some countries combining their national implementing agencies and mechanisms for the two conventions. There also is an overlap of efforts within the scientific and industrial communities to adopt governance mechanisms and ethical codes to prevent the misuse of chemical and biological sciences for hostile purposes.
The situation at the international level, however, is more complicated, particularly with regard to verification. It is difficult to understand how the CWC can successfully address the verification dimension of the increasing convergence between chemistry and biology without running into some of the same difficulties that prevented the adoption of a BWC verification protocol in 2001-2002.[5] There is thus a risk that the CWC review conference might set itself up for failure if it aimed too high. At the same time, it cannot ignore the advances in the life sciences and their effect on the CWC. The challenge will be to find the right balance in further developing the treaty’s verification system while enhancing national implementation, developing self-governance mechanisms, and involving all stakeholders in the implementation process.

How States Might Skirt the Chemical Weapons Ban

Ralf Trapp
It might be possible for states to carry out programs that could take advantage of new discoveries in science and technology to develop a novel agent while asserting that they are technically complying with Chemical Weapons Convention (CWC) obligations.
The CWC allows for the use of toxic chemicals for “law enforcement purposes including domestic riot control.” The traditional interpretation of this clause has been that states-parties are clearly allowed to use riot control agents (RCAs) for domestic riot-control purposes subject to certain conditions in the CWC. Some have claimed that the provision has broader implications, for example, permitting occupying forces, such as those of the United States in Iraq, to use RCAs abroad.[1] Similarly, some states-parties have said that toxic chemicals other than RCAs could be used for law enforcement purposes. In particular, they have insisted that they consider the use of lethal chemicals for capital punishment consistent with the provisions of the CWC.
Internationally, the changing nature of armed conflict, with an increased focus on counterinsurgency and counterterrorism methods, has stimulated a renewed interest in so-called nonlethal weapons, including incapacitants. Advances in the life sciences could lead to the development of drugs that may match to an extent the pharmaceutical profile required of such weapons, and the very fact that progress in life science research may be seen to offer such opportunities could fuel further developments.
The implications are both legal and practical. On the legal side, the prohibition not to develop, produce, and stockpile (new generations of) chemical weapons could be seriously undermined. After all, there is no such thing as a nonlethal toxic chemical—lethality depends on such factors as the dosage, the vulnerabilities of the target population, and the methods and location of agent dispersal.[2] Moreover, in a military context, there is an additional factor: the agents would be used on a battlefield where other weapons are present (guns, artillery, aircraft, etc.), and incapacitants could increase the lethality of these conventional weapons if used in combined operations.
On the practical side, the remaining comfort that one could derive from the fact that it still may take considerable time to go from discovering a new agent to actually fielding an effective weapon would be gone. Inspectors might find chemical weapons at the stages of development, production, or stockpiling, and a state-party could claim that these arms were entirely legitimate as part of a program for law enforcement purposes.
To ensure transparency and promote confidence, some have proposed to make toxic chemicals intended for law enforcement purposes subject to declaration to the Organization for the Prohibition of Chemical Weapons. This step may be premature, but it will be important that states-parties recognize this issue and start discussing the implications of these developments so as to prevent the emergence of a new generation of chemical weapons. The review conference would be the appropriate forum to initiate such a discussion.

um bom dia


um bom dia




good morning


quinta-feira, 27 de fevereiro de 2014

BRASIL E A INSEGURANÇA PÚBLICA;;;;;

Toda essa publicidade para exibir o “Robocop da PM” serve para 
mostrar o quanto estamos despreparados para ouvir o clamor das ruas
 e de conviver com o contraditório.



Em vez de atender aos anseios da população nos quesitos saúde, transporte e educação – que levaram milhares de pessoas
 às ruas desde junho passado — os governos gastaram fortunas para armar 
seus policiais e caminhar na contramão das novas regras, que não permitirão
 que se use máscaras durante protestos de rua.

O policial mascarado – travestido de herói do cinema – terá carta branca para aplicar choques elétricos e golpes de lutas marciais no primeiro Zé Mané que cruzar a sua frente. A introdução do “Robocop” é um grande equívoco e vai aumentar o tom da violência nas manifestações de rua. 
Ao se armar cada vez mais contra a população, a força de repressão
 vai estimular o revide — como na lei da ação e da reação (ou da causalidade) 
descrita por Newton que diz que toda ação provoca uma reação de mesma
 intensidade e direção, mas em sentido oposto. Foi o que ocorreu há alguns 
dias na Ucrânia: Estado e população trocaram tiros, explosivos e bombas
 incendiárias – deixando dezenas de mortos e um presidente foragido. 
A Venezuela de Maduro segue pelo mesmo caminho.

Qualquer semelhança com o Robocop do novo filme de José Padilha não é mera coincidência (Divulgação)







Triste ver que uma pessoa blindada desse jeito estará blindada
 também para causar danos físicos e morais em terceiros sem ser
 identificada – com a conivência do Estado. É a evolução das sessões 
de tortura – que deixarão a caserna e os subsolos dos tempos do regime
 militar – para causar dor e sofrimento em plena luz do dia, mantendo 
impunes seus autores.
Difícil imaginar que uma ideia dessa tenha saído da cabeça de governantes
 que se dizem democráticos e, muitos deles, vítimas do regime militar.
FONTE OPINIÃO &   NOTICIA  

combustivel de foguete





Nas CNTP, 1 mol = 22,4 L. Então para 4,48 L: 
1 mol -------- 22,4 L 
x -------------- 4,48 L 
x = 0,2 mol 

Portanto, 0,2 mol = 6,4g. Para 1 mol: 
0,2 mol --------- 6,4 g 
1 mol ----------- y 
y= 32 g 

1 mol de NH2 tem 1 mol de N e 2 mols de H. Em massa: 
16g de NH2 tem 14g de N e 2g de H. Porém a substância não tem 16,
 mas sim 32g, então: 
Para o N: 
16g ------- 14g 
32g ------- a = 28g 

Para o H: 
16g -------- 2g 
32g -------- b = 4g 

A massa atômica do N é 14, então: 
28g de N = 2 átomos de N 
A massa atômica do H é 1, então: 
4g de H = 4 átomos de H 
Portanto a fórmula molecular é N2H4