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Autor: Alessandra Franchi
~ 27/11/08
Olha só como são importantes as medidas de segurança dentro de um laboratório…
.
As últimas palavras de um químico
.
01 – e agora o teste do paladar…
02 – porque isto está ficando quente?
03 – e… mais um pouquinho disso…
04 – por favor!! mantenha este tubo loooongeeee.
05 – e agora.. agitar isso um pouquinho…
06 – Porque não há nenhum rótulo neste frasco?
07 – Em qual destas garrafas está a minha água mineral?
08 – Porque esta coisa está queimando com uma chama verde?
09 – Acho que derramei alguma coisa!
10 – Primeiro o ácido… depois a água…
11 – Este é um experimento completamente seguro.
12 – Oh não! Bécker errado!
13 – O alarme de incêndio só está sendo testado.
14 – Agora já posso tirar o vidro de proteção.
15 – Devo mater isso a temperatura constante de 24 ºC… 25, 26, 27, 28….
16 – Pedro, você pode me ajudar? Pedro? Peeeedroooo.
17 – Alguma coisa está errada.
.
Autor: Alessandra Franchi
Aqui vão algumas sugestões de sites que apresentam desafios, passatempos e curiosidades dentro do tema da Química. Alguns são bem simples, mas vale a pena aproveitá-los como forma de revisão.
http://videos.howstuffworks.com/science
http://www.virtlab.com/main.aspx
http://www.hull.ac.uk/chemistry/puzzles#
Autor: Alessandra Franchi
A first-order system simulation was carried out to obtain first estimates of the design boundary conditions for a TCM reactor. The simulations showed that TCM storage is a very interesting means of creating a seasonal storage for solar heat. However, a number critical issues exist, such as finding suitable materials (reaction temperatures in the right range) and building an optimized TCM reactor that is able to produce sufficient power and has a limited temperature drop. Various reactor concepts are proposed in this paper.
CNEN – Comissão Nacional de Energia Nuclear
2008 – Boletim de Energia – Acesso livre
Autor: Alessandra Franchi
This report reflects the presentations and discussions from a bilateral meeting held October 2, 2007 in Washington D.C.. The meeting, which was attended by an equal number of Canadian and American experts in freshwater science and policy, was the first theme-based event to be held as part of the PRI’s project on Engaging US Think-Tanks. The meeting was organized by the PRI and hosted by the Woodrow Wilson International Center for Scholars to explore possible areas and means of improving Canada-US policy research links relating to freshwater in the context of “Water and Climate Change” and the “Energy-Water Nexus”. As discussed in the report, the exchange between the meeting’s participants was rich and informative and there was a significant level of convergence on the key science and policy research needs with respect to freshwater including: the need for improved data and modeling capacity and integration; water related research for the energy sector; the advancement of watershed management; the development and adoption of policy options to increase water efficiency; and in-stream flow requirements.
CNEN – Comissão Nacional de Energia Nuclear
2008 – Boletim de Energia – Acesso livre
Autor: Alessandra Franchi
From a supply chain view, this paper traces the flow of transportation fuels through required systems and addresses the current petroleum-based economy, DOE’s vision for a future hydrogen-based transportation economy, and the challenges of a massive market and infrastructure transformation.
CNEN – Comissão Nacional de Energia Nuclear
2008 – Boletim de Energia – Acesso livre