O NO2 foi a estrela das trafulhices com as emissões. É tóxico em pequenas quantidades e pode estar relacionado (não se sabe ainda como: Comichão no nariz / lacrimejar de olhos vs. Diminuição de atenção ao conduzir):
http://www.telegraph.co.uk/science/2016/10/03/air-pollution-could-be-to-blame-for-hundreds-of-traffic-accident/
Citando:
"Air pollution could be responsible for hundreds of car accidents a year, according to the London School of Economics.
A study looking a five years of data showed that when levels of nitrogen dioxide (NO2) rise just one microgramme per cubic metre, the number of collisions rises by two per cent.
Although it might seem that effect could be explained by more traffic on the roads, and therefore more pollution and more accidents, the researchers found that the increase remained even when adjusting for the extra traffic."
Todas as espectacularidades da Internet, estranhas ou não, exceptuando a pornografia em geral (pun)
Mostrar mensagens com a etiqueta 2016-09. Mostrar todas as mensagens
Mostrar mensagens com a etiqueta 2016-09. Mostrar todas as mensagens
segunda-feira, 3 de outubro de 2016
sexta-feira, 30 de setembro de 2016
MH17 e como se tenta ocultar uma coisa desta natureza
Etiquetas:
2016-09,
Cover Up,
MH17,
News,
R U S S I A
Porque é que os pássaros nunca colidem em voo...
... Ou o código de conduta de voo passarado (The flyway code):
http://www.independent.co.uk/news/science/how-do-birds-fly-not-crash-mid-air-budgies-study-a7338916.html
R: Porque viram sempre à direita (e por vezes perdem altitude).
http://www.independent.co.uk/news/science/how-do-birds-fly-not-crash-mid-air-budgies-study-a7338916.html
R: Porque viram sempre à direita (e por vezes perdem altitude).
Xénon e Krypton detectados por Curiosity (Marte)
Novo artigo científico publicado refere que o Xenon e Krypton detectados em Marte são algo diferentes do esperado. Detalhes da instrumentação (sensores, etc.) usados:
http://www.sciencedirect.com/science/article/pii/S0012821X16304514
http://www.theregister.co.uk/2016/09/30/curiosity_sniffs_mars_odd_atmosphere_wafting_out_of_its_soil/
http://www.sciencedirect.com/science/article/pii/S0012821X16304514
http://www.theregister.co.uk/2016/09/30/curiosity_sniffs_mars_odd_atmosphere_wafting_out_of_its_soil/
quinta-feira, 29 de setembro de 2016
Manipulação genética low-cost
https://www.theguardian.com/science/2016/sep/30/experts-warn-home-gene-editing-kits-pose-risk-to-society
Citando:
"Genome editing has become a common tool in laboratories around the world. The most common technique, called Crispr-cas9, works like a pair of molecular scissors. It is essentially a pair of enzymes that can be designed to find and remove a specific strand of DNA inside a cell, and then replace it with a new piece of genetic material. The procedure can be used to rewrite single letters of genetic code and even whole genes."
Citando:
"Genome editing has become a common tool in laboratories around the world. The most common technique, called Crispr-cas9, works like a pair of molecular scissors. It is essentially a pair of enzymes that can be designed to find and remove a specific strand of DNA inside a cell, and then replace it with a new piece of genetic material. The procedure can be used to rewrite single letters of genetic code and even whole genes."
Base secreta dos EUA abandonada
https://www.theguardian.com/world/2016/sep/27/receding-icecap-top-secret-us-nuclear-project-greenland-camp-century-project-iceworm
Citando:
"The US army engineering corps excavated Camp Century in 1959 around 200km (124 miles) from the coast of Greenland, which was then a county of Denmark.
Powered, remarkably, by the world’s first mobile nuclear generator and known as “the city under the ice”, the camp’s three-kilometre network of tunnels, eight metres beneath the ice, housed laboratories, a shop, a hospital, a cinema, a chapel and accommodation for as many as 200 soldiers."
Citando:
"The US army engineering corps excavated Camp Century in 1959 around 200km (124 miles) from the coast of Greenland, which was then a county of Denmark.
Powered, remarkably, by the world’s first mobile nuclear generator and known as “the city under the ice”, the camp’s three-kilometre network of tunnels, eight metres beneath the ice, housed laboratories, a shop, a hospital, a cinema, a chapel and accommodation for as many as 200 soldiers."
quarta-feira, 28 de setembro de 2016
Métricas de produtividade diversas
É um tópico difícil (escolher o que medir)... Algumas ideias:
- http://sapience.net/the-3-most-important-workplace-metrics-you-arent-yet-measuring/
- https://rise.xyz/blog/5-metrics-team-member-performance/
- https://www.smartsheet.com/blog/how-calculate-productivity-all-levels-organization-employee-and-software
Etiquetas:
2016-09,
FFR,
KPI,
Measurements,
Measures,
Metrics,
Productivity,
TODO,
Workplace
MH17 shot down by rebels with missile from Russia, say investigators | The Independent
Sobre investigações de acidentes (SpaceX) e não acidentes... Detalhes do estado actual da do MH17:
MH17 shot down by rebels with missile from Russia, say investigators | The Independent
MH17 shot down by rebels with missile from Russia, say investigators | The Independent
segunda-feira, 26 de setembro de 2016
Missão Rosetta termina esta semana...
... Com um crash no cometa:
http://www.express.co.uk/news/science/714420/Rosetta-mission-ends-THIS-week-travelling-almost-seven-billion-kilometres
http://www.express.co.uk/news/science/714420/Rosetta-mission-ends-THIS-week-travelling-almost-seven-billion-kilometres
domingo, 25 de setembro de 2016
Expansão do universo uniforme
Universo com expansão uniforme (o que é compatível com os modelos actuais, inclusive o de Einstein):
http://www.ibtimes.co.uk/universe-expanding-all-directions-all-time-1582997
Citando:
"Lead author Daniela Saadeh added: "You can never rule it out completely, but we now calculate the odds that the universe prefers one direction over another at just 1 in 121,000. We're very glad that our work vindicates what most cosmologists assume. For now, cosmology is safe.""
http://www.ibtimes.co.uk/universe-expanding-all-directions-all-time-1582997
Citando:
"Lead author Daniela Saadeh added: "You can never rule it out completely, but we now calculate the odds that the universe prefers one direction over another at just 1 in 121,000. We're very glad that our work vindicates what most cosmologists assume. For now, cosmology is safe.""
O que é que nasceu primeiro: o ovo ou a galinha?
Esta pergunta pode ser interpretada de forma lata ou estrita. Na forma estrita a pergunta tem resposta científica: Foi o ovo, porque os ovos já existiam antes da primeira galinha digna do nome (a domesticada há cerca de 7000 anos). Curiosamente esta é uma pergunta antiga (desde os filósofos gregos).
Detalhes:
http://time.com/4475048/which-came-first-chicken-egg/?xid=newsletter-brief
Detalhes:
http://time.com/4475048/which-came-first-chicken-egg/?xid=newsletter-brief
sábado, 24 de setembro de 2016
Peixes que cantam em coro?
Sim, talvez todos...
http://www.independent.co.uk/news/science/fish-sing-dawn-chorus-audio-recording-australia-a7322346.html
https://www.washingtonpost.com/news/speaking-of-science/wp/2016/09/23/mystery-solved-melatonin-makes-these-fish-sing-at-night/
http://www.independent.co.uk/news/science/fish-sing-dawn-chorus-audio-recording-australia-a7322346.html
https://www.washingtonpost.com/news/speaking-of-science/wp/2016/09/23/mystery-solved-melatonin-makes-these-fish-sing-at-night/
sexta-feira, 23 de setembro de 2016
Lançador da SpaceX (Falcon 9) - resultados preliminares da investigação
Perdeu-se o lançador (pela segunda vez) e o payload de 200 M USD. Resultados preliminares e muitos detalhes interessantes de como funcionam:
http://spaceflightnow.com/2016/09/23/falcon-9-rocket-explosion-traced-to-upper-stage-helium-system/
Updated: K to M.
http://spaceflightnow.com/2016/09/23/falcon-9-rocket-explosion-traced-to-upper-stage-helium-system/
Updated: K to M.
Os prémios Ignobel somam e seguem
http://www.bbc.com/news/science-environment-37443204
http://www.bbc.com/news/science-environment-34278595
PS. pago um café a quem conseguir ler a lista sem se rir pelo menos uma vez. Mas no final têm de me ouvir dizer: 'És um porco sabujo sem qualquer tipo de sentido de missão científica!"
http://www.bbc.com/news/science-environment-34278595
PS. pago um café a quem conseguir ler a lista sem se rir pelo menos uma vez. Mas no final têm de me ouvir dizer: 'És um porco sabujo sem qualquer tipo de sentido de missão científica!"
quarta-feira, 21 de setembro de 2016
Barraca chinesa
E a barraca chinesa no espaço deu barraca. E esperamos que não caia em cima da nossa barraca:
http://www.dailymail.co.uk/sciencetech/article-3799803/China-space-station-control-crash-Earth-no-one-knows-debris-land.html
http://www.dailymail.co.uk/sciencetech/article-3799803/China-space-station-control-crash-Earth-no-one-knows-debris-land.html
NASA e Europa
Velhidades na nossa Europa. E novidades da NASA na Europa:
http://www.dailymail.co.uk/sciencetech/article-3799973/Is-alien-life-Europa-Nasa-reveal-surprising-discovery-icy-moon-s-subsurface-oceans.html
http://www.dailymail.co.uk/sciencetech/article-3799973/Is-alien-life-Europa-Nasa-reveal-surprising-discovery-icy-moon-s-subsurface-oceans.html
terça-feira, 20 de setembro de 2016
Segredos da resistência à radiação dos tardígrados...
... Começam a ser desvendados (water bears):
http://www.bbc.com/news/science-environment-37384466
http://www.bbc.com/news/science-environment-37384466
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