terça-feira, 30 de abril de 2013

Humanity Explores the Solar System

Astrónomos descobrem planetas com órbitas muito excêntricas

Chamam-se KOI-200 b e KOI-889 b, foram detectados pelo telescópio espacial Kepler, da NASA, e são dois planetas extrassolares de órbitas muito excêntricas descobertos por investigadores do Instituto de Astrofísica de Paris, do Centro Nacional de Pesquisas Científicas de França e do Centro de Astrofísica da Universidade do Porto (CAUP). Ler mais.

sábado, 27 de abril de 2013

Einstein's Gravity Theory Passes Toughest Test Yet

A strange stellar pair nearly 7,000 light-years from Earth has provided physicists with a unique cosmic laboratory for studying the nature of gravity. The extremely strong gravity of a massive neutron star in orbit with a companion white dwarf star puts competing theories of gravity to a test more stringent than any available before. Read more.

Kandidat für Dunkle Materie in US-Bergwerk entdeckt

Detektor in Bergwerk registriert Hinweis auf Dunkle Materie
Nach aktuellen Berechnungen müsste Dunkle Materie rund 80 Prozent aller Materie im Universum ausmachen. Beobachtet hat sie trotzdem bisher niemand. Dafür macht sie sich indirekt umso mehr bemerkbar: Dunkle Materie soll für die ungewöhnlich hohen Umlaufgeschwindigkeiten von Sternen im äußeren Bereich von Galaxien verantwortlich sein. Außerdem zeigt sie sich durch die gravitative Lichtbeugung, dem Gravitationslinsen-Effekt. Mehr.

LHCb experiment observes new matter-antimatter difference

The LHCb collaboration at CERN today submitted a paper to Physical Review Letters on the first observation of matter-antimatter asymmetry in the decays of the particle known as the B0s. It is only the fourth subatomic particle known to exhibit such behaviour. Read more.

quinta-feira, 25 de abril de 2013

Hangout with CERN: Extra dimensions

Starting right now, there is a Google+ hangout with CERN with special guests, Lisa Randall and Raman Sundrum. Today they will be discussing extra dimensions. Don’t miss it!

segunda-feira, 22 de abril de 2013

Happy Earth day!

Actividades Ciência

sexta-feira, 12 de abril de 2013

Because Music is essential

quarta-feira, 10 de abril de 2013

The beginning of the universe, for beginners - Tom Whyntie

Invest in Our Future - Invest in Science

Está aberto o concurso de vídeo "Invest in Our Future - Invest in Science"
Mais informações aqui https://www.facebook.com/investinscience?ref=hl
e aqui http://investinscience.eu/

Faster then Sound

F-22 Raptor breaking the sound barrier. It is capable of reaching a top speed of 2410 km/h.

Imagine Dragons - It's Time

segunda-feira, 8 de abril de 2013

How far is it to Mars?

This is a bit tangential to the environment, but the website Distance to Mars provides a great reminder of just how small and isolated the Pale Blue Dot that we call home truly is. Looking at the distance to Mars, our next-door neighbor on the astrological scale, you can't help but feel small. Read more.

domingo, 7 de abril de 2013

Models of Transparency

Researchers are taking advantage of small, transparent zebrafish embryos and larvae—and a special strain of see-through adults—to understand the development and spread of cancer. Read more.

Sun Day

sábado, 6 de abril de 2013

Earth at Twilight

Descobertos primeiros indícios da 'matéria escura'

Um detetor de partículas a bordo da Estação Espacial Internacional (ISS) encontrou aquilo que muitos cientistas pensam ser o primeiro indício 'visível' da 'matéria escura', a misteriosa substância que, segundo os modelos mais comummente aceites, compõe grande parte do Universo.

O Alpha Magnetic Spectrometer (Espectrómetro Magnético Alfa) foi levado para a ISS há dois anos e tem como missão estudar os raios cósmicos - partículas de alta energia que permeiam todo o cosmos, provavelmente originárias do Big Bang, o momento de criação do espaço, do tempo e de toda a matéria no Universo. Ler mais.

Agora, já é possível ver o planeta Terra a respirar

A NASA criou uma animação que permite ver o planeta Terra a respirar. O vídeo mostra a relação entre o ciclo sazonal da vegetação terrestre e da concentração de dióxido de carbono na atmosfera.

segunda-feira, 1 de abril de 2013

Innovation inspired by nature.

Northrop Grumman B-2 Spirit
Other examples of technology being inspired by the natural world include:
- Velcro, which is inspired by burrs.
- Improved wind turbines, which are inspired by fins, tails and flippers.
- Tidal power systems,inspired by swimming fish.
-Efficient color electronic screens, inspired by butterfly wings.
- Robotic spy place known at the COM-BAT, inspired by bats.

Natural selection is extraordinarily efficient. More in...